WO2017119232A1 - Joining method and method of manufacturing liquid-cooled jacket - Google Patents
Joining method and method of manufacturing liquid-cooled jacket Download PDFInfo
- Publication number
- WO2017119232A1 WO2017119232A1 PCT/JP2016/086583 JP2016086583W WO2017119232A1 WO 2017119232 A1 WO2017119232 A1 WO 2017119232A1 JP 2016086583 W JP2016086583 W JP 2016086583W WO 2017119232 A1 WO2017119232 A1 WO 2017119232A1
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- WIPO (PCT)
- Prior art keywords
- metal member
- auxiliary member
- joining
- metal
- sealing body
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/06—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid
Definitions
- the present invention relates to a joining method for joining metal members by friction stir and a manufacturing method for a liquid cooling jacket.
- Patent Document 1 after joining a first metal member and a second metal member in an L-shaped cross section to form a butted portion, a rotating tool is inserted into the inner corner, and the butted portion is friction stir welded A method is described. In the friction stir welding, friction stirring is performed with only the stirring pin in contact with the first metal member and the second metal member.
- Patent Document 2 discloses a joining method in which a first metal member and a second metal member having different sizes are subjected to friction stir welding.
- Patent Document 3 discloses a technique for joining metal components together by friction stir welding.
- a conventional liquid cooling jacket is composed of a box-shaped jacket body that is open at the top and a plate-shaped sealing body that seals the opening of the jacket body.
- a plate-shaped sealing body is placed on the stepped portion of the jacket body, and a stirring pin of a rotating tool is inserted from an inner corner formed by the jacket body and the sealing body, The rotating tool is rotated around the sealing body.
- an auxiliary member is disposed in the inner corner, and friction agitation is performed on the butt portion in a state where the agitation pin is in contact with the first metal member, the second metal member, and the auxiliary member. Since it does, it can prevent that a junction part (inner corner) becomes metal shortage. However, since many burrs are generated in the inner corner after the friction stirring step, there is a problem that the operation of removing the burrs becomes complicated.
- an object of the present invention is to provide a joining method that can prevent metal shortage at the joint. It is another object of the present invention to provide a joining method that can prevent the burrs from being easily removed while preventing the joining portion from becoming insufficient in metal. Furthermore, this invention makes it a subject to provide the manufacturing method of the liquid cooling jacket which can remove a burr
- the present invention provides a joining method for joining a first metal member and a second metal member using a rotary tool having a stirring pin, the first metal member and the second metal member.
- An arrangement step of arranging an auxiliary member so as to be in surface contact with the second metal member, and the rotating stirring pin is inserted into the inner corner, and only the stirring pin is inserted into the first metal member, the second metal member, and the A friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the auxiliary member.
- the present invention is a joining method for joining a first metal member and a second metal member using a rotary tool provided with a stirring pin, wherein the first metal member and the second metal member are substantially cut in cross section.
- An arrangement step of arranging an auxiliary member having a substantially L-shaped cross section so as to come into contact with the rotating stirring pin is inserted into an inner corner of the auxiliary member, and only the stirring pin is used for the first metal member and the second metal.
- a friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the member and the auxiliary member. It is characterized by that.
- the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented.
- a removing step of removing the auxiliary member on which the burr is formed from the first metal member or the second metal member it is preferable to include a removing step of removing the auxiliary member, which is divided by the friction stirring step and has a burr formed thereon, from the first metal member and the second metal member.
- the burr can be easily removed.
- the joining conditions it is preferable to set the joining conditions so that burrs generated in the friction stir welding are formed on the auxiliary member.
- the burrs can be concentrated on the auxiliary member, the work of removing the burrs can be performed more easily.
- the present invention is a joining method for joining two metal members having different shapes of surfaces to be abutted using a rotary tool provided with a stirring pin, A butting step of butting the metal member and the other metal member to form a butting portion; and an arrangement step of placing an auxiliary member at the inner corner of the metal members over the circumferential direction of the other metal member; The rotated stirring pin is inserted into the inner corner, and only the stirring pin is in contact with the metal members and the auxiliary member, and the friction stir of the butted portion is performed over the circumferential direction of the other metal member. And a removing step of removing the auxiliary member from at least one of the one metal member and the other metal member.
- the auxiliary member is also friction stir welded at the same time, so that a metal shortage at the joint can be prevented. Further, since the burrs can be removed together with the auxiliary member by the removing step, the burrs can be easily removed.
- the joining conditions it is preferable to set the joining conditions so that burrs generated by friction stirring are formed on the auxiliary member. According to such a joining method, since the burrs are collected on the auxiliary member, the burrs can be removed more easily.
- all the said metal members are plate-shaped, and it is preferable to abut
- one of the metal members has a plate shape, and the other metal member has a columnar shape, and in the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
- one of the metal members has a plate shape, and the other metal member has a cylindrical shape. In the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
- one of the metal members has a plate shape, and the other metal member has a cylindrical shape.
- the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred. Further, it is preferable that a through hole is formed in one of the metal members, and the through hole is covered with the other metal member in the butting step. Further, it is preferable that a through hole is formed in one of the metal members, and the through hole and the hollow portion of the other metal member are communicated with each other in the butting step.
- metal members having various shapes can be joined together.
- the present invention is a method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows and a sealing body that seals the opening of the recess.
- a step bottom surface having a bottom portion and a frame-shaped peripheral wall portion rising from a peripheral edge of the bottom portion, the step bottom surface formed at a position one step lower than an end surface of the peripheral wall portion, and the step bottom surface
- a step of preparing the jacket body including a step side surface rising from the step side, placing the sealing body having a thickness larger than the height dimension of the step side surface on the step bottom surface, A butting step of forming a butting portion in which the side surface of the sealing body is butted, a disposing step of disposing an auxiliary member at an inner corner formed by an end surface of the peripheral wall portion and a side surface of the sealing body, Time with a stirring pin in the inner corner A friction stirring step of inserting a tool and stirring the butt portion in a state where
- an auxiliary member is disposed in the inner corner, and the auxiliary member in addition to the jacket main body and the sealing body is frictionally stirred at the same time, thereby preventing metal shortage at the joint. Further, since the burr can be removed together with the auxiliary member by the removing step, the burr can be easily removed.
- burrs can be removed more easily.
- the friction stirring step it is preferable to perform the friction stirring in a state where the rotation center axis of the rotary tool is inclined outward. According to this manufacturing method, the rotary tool can be easily inserted into the inner corner.
- a support portion provided with an end surface flush with the step bottom surface and a protruding portion protruding from the support portion are formed on the bottom portion, and a concave groove is formed on the back surface of the sealing body,
- the sealing body is placed while inserting the protruding portion into the concave groove, and in the friction stirring step, the fitting portion in which the protruding portion and the concave groove are fitted to each other.
- Friction stirring is preferably performed in a state where only the stirring pin of the rotary tool is in contact with only the sealing body or with the protruding portion and the sealing body.
- the sealing body is supported by the support portion and the support portion and the sealing body are also friction stir welded, the strength of the liquid cooling jacket can be increased. Moreover, the positioning work of the sealing body can be easily performed by inserting the protruding portion into the concave groove.
- the support portion extends from the peripheral wall portion, and in the friction stirring step, after the friction stir of the fitting portion, the support portion is moved as it is to the peripheral wall portion, and the It is preferable to release the rotating tool.
- the hole for the stirring pin is formed at a position away from the concave portion of the jacket body, the water-tightness and air-tightness of the liquid-cooled jacket can be improved.
- the present invention is a method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows and a sealing body that seals the opening of the recess.
- the preparation step of preparing the jacket body having the bottom and the frame-shaped peripheral wall portion rising from the peripheral edge of the bottom portion, and the sealing body, and the end surface of the peripheral wall portion and the back surface of the sealing body are overlapped
- a superposition step of forming a superposition part an arrangement step of arranging an auxiliary member in an inner corner constituted by an end face of the peripheral wall portion and a side surface of the sealing body, and a rotary tool provided with a stirring pin in the inner corner
- Body and said seal Removing from at least one of the bodies, and in the friction stir step, the rotation tool
- an auxiliary member is disposed in the inner corner, and the auxiliary member in addition to the jacket main body and the sealing body is frictionally stirred at the same time, thereby preventing metal shortage at the joint. Further, since the burrs can be removed together with the auxiliary member by the removing step, the burrs can be easily removed.
- burrs can be removed more easily.
- the friction stirring step it is preferable to perform the friction stirring in a state where the rotation center axis of the rotary tool is inclined outward. According to this manufacturing method, the rotary tool can be easily inserted into the inner corner.
- a support portion provided with an end surface flush with the end surface of the peripheral wall portion is erected on the bottom portion, and a protruding portion is formed on the end surface of the support portion.
- the sealing body is placed so as to cover the end surface of the peripheral wall portion and the end surface of the support portion while inserting the protruding portion into the concave groove.
- the rotating tool is rubbed against the fitting portion in which the concave groove and the protruding portion are fitted to each other, or in a state where the rotating tool is in contact with only the sealing body or the sealing body and the protruding portion. It is preferable to stir.
- the sealing body is supported by the support portion and the support portion and the sealing body are also friction stir welded, the strength of the liquid cooling jacket can be increased. Moreover, the positioning work of the sealing body can be easily performed by inserting the protruding portion into the concave groove.
- the rotating tool is moved away from the sealing body after the stirring pin of the rotating tool is relatively moved along the projecting portion for one or more rounds.
- the bonding strength can be increased, and the water tightness and the air tightness can be improved.
- metal shortage at the joint can be prevented. Further, according to the joining method according to the present invention, it is possible to prevent the burrs from being easily removed while preventing the joining portion from becoming a metal shortage. Moreover, according to the manufacturing method of the liquid cooling jacket which concerns on this invention, the metal shortage of a junction part can be prevented and a burr
- FIG. 10 It is a perspective view which shows the auxiliary member of the manufacturing method of the liquid cooling jacket which concerns on 10th embodiment. It is a perspective view which shows the arrangement
- the butting process is a process in which the first metal member 1 and the second metal member 2 are butted in a substantially L-shaped cross section as shown in FIG.
- the first metal member 1 and the second metal member 2 are metal plate-like members.
- the material of the first metal member 1 and the second metal member 2 is not particularly limited as long as it is a metal that can be frictionally stirred.
- aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, etc. May be selected as appropriate.
- board thickness of the 1st metal member 1 and the 2nd metal member 2 is equivalent.
- the plate thicknesses of the first metal member 1 and the second metal member 2 may be set as appropriate.
- the end surface 1a of the first metal member 1 and the side surface 2b of the second metal member 2 are butted to form a butting portion J1.
- the end surface 2a of the second metal member 2 and the side surface 1c of the first metal member 1 are flush with each other.
- the side surface 1b of the first metal member 1 and the end surface 2a of the second metal member 2 may be butted.
- the placement step is a step of placing the auxiliary member 10 at the inner corner formed by the first metal member 1 and the second metal member 2.
- the auxiliary member 10 is a metal plate member.
- the auxiliary member 10 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 10 is made of the same material as the first metal member 1 and the second metal member 2.
- board thickness of the auxiliary member 10 is suitably set so that the plasticization area
- the end surface 10a of the auxiliary member 10 and the side surface 1b of the first metal member 1 are brought into contact with each other, and the side surface 10c of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into surface contact.
- auxiliary member 10 can be arranged stably.
- the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 10 are restrained immovably using a jig
- the auxiliary member 10 is plate-shaped in this embodiment, another shape may be sufficient.
- the friction stirring step is a step of joining the butted portion J1 of the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for bonding as shown in FIG.
- the joining rotary tool F includes a connecting portion F1 and a stirring pin F2.
- the joining rotary tool F corresponds to a “rotary tool” in the claims.
- the joining rotary tool F is made of, for example, tool steel.
- the connecting part F1 is a part connected to a rotating shaft (not shown) of the friction stirrer.
- the connecting portion F1 has a cylindrical shape.
- the stirring pin F2 hangs down from the connecting part F1, and is coaxial with the connecting part F1.
- the stirring pin F2 is tapered as it is separated from the connecting portion F1.
- a spiral groove is formed on the outer peripheral surface of the stirring pin F2.
- the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right.
- the spiral groove is formed counterclockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end.
- the spiral groove when rotating the rotation tool F for joining counterclockwise, it is preferable to form a spiral groove clockwise as it goes to the front-end
- the spiral groove in this case is formed clockwise when viewed from above when the spiral groove is traced from the proximal end to the distal end.
- the rotating tool F for joining may be attached to a friction stirrer such as a machining center, but may be attached to, for example, an arm robot having a rotation driving means such as a spindle unit at the tip.
- a friction stirrer such as a machining center
- an arm robot having a rotation driving means such as a spindle unit at the tip.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 10 is positioned on the left side in the traveling direction of the joining rotary tool F.
- the rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate.
- the joining rotary tool F may be rotated counterclockwise while the auxiliary member 10 is disposed on the left side in the traveling direction of the joining rotary tool F.
- the conditions such as the rotation direction of the bonding rotary tool F and the preferred positional relationship of the auxiliary member 10 will be described later.
- the insertion angle of the agitation pin F2 in the friction agitation process may be set as appropriate.
- the angle between the first metal member 1 and the rotation center axis of the joining rotary tool F is set to about 45 °. ing.
- the insertion angle of the stirring pin F2 may be set to 45 to 75 °.
- the removal step is a step of removing the auxiliary member 10 from the second metal member 2.
- the auxiliary member 10 is bent away from the second metal member 2 and removed from the second metal member 2.
- flash V formed in the side surface 1b of the 1st metal member 1 is removed using a cutting device etc. Thereby, as shown in FIG. 4, the 1st metal member 1 and the 2nd metal member 2 are joined by cross-sectional substantially L shape.
- the first metal member 1 and the second metal member 2 are joined in a substantially L-shaped cross section, and the first metal member 1 and the second metal member 2 are joined.
- the auxiliary member 10 is also subjected to friction stir welding at the same time, so that a metal shortage at the joint (plasticized region W) can be prevented.
- metal shortage can be prevented only by arrange
- the burrs V are formed in the auxiliary member 10 by the friction stirring process, but it can be removed together with the auxiliary member 10 in the removing process.
- flash can be performed easily.
- the end surface of the auxiliary member 10 is inclined so as to become thinner as it goes toward the inner corner.
- the auxiliary member 10 may use a removing device or the like, in this embodiment, the auxiliary member 10 can be easily removed manually.
- the auxiliary member 10 is disposed on the left side in the traveling direction and the rotating tool F for rotation is rotated to the right, so the auxiliary member 10 side is the Ad side.
- the Ad side is the side on which the magnitude of the feed speed is added from the magnitude of the tangential speed on the outer circumference of the welding rotary tool F.
- the side opposite to the Ad side is the Re side.
- the Re side (flow side) is a side on which the magnitude of the feed speed is subtracted from the magnitude of the tangential speed on the outer periphery of the welding rotary tool F.
- the rotation direction and the traveling direction of the welding rotary tool F are set so that many burrs V are formed on the auxiliary member 10 side. Thereby, since the burr
- the auxiliary member 10 may be disposed on the Re side (first metal member 1 side) to perform the friction stirring step.
- the joining conditions include the rotational speed, rotational direction, traveling direction, moving speed (feed speed) of the rotating tool F for joining, the inclination angle (taper angle) of the stirring pin F2, the first metal member 1, and the second metal member 2.
- the material of the auxiliary member 10, the thickness of the auxiliary member 10, etc., and the combination of these elements It is preferable to set the side where the burrs V are generated or the side where the burrs V are generated to be the auxiliary member 10 side according to the joining conditions because the removal process can be easily performed.
- FIG. 5 is a cross-sectional view showing a friction stirring process according to a modification of the first embodiment.
- the end surface 10a of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into contact with each other, and the side surface 1b of the first metal member 1 and the side surface 10b of the auxiliary member 10 are in surface contact.
- the member 10 is arranged.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 10 is positioned on the right side in the traveling direction of the joining rotary tool F while rotating the joining rotary tool F counterclockwise.
- the auxiliary member 10 side turns into Ad side.
- the modification can also provide substantially the same effect as the bonding method according to the first embodiment.
- the rotational speed of the welding rotary tool F is set to be high, the temperature of the plastic fluidized material increases on the Ad side, but the burr V tends to occur on the Re side due to the higher rotational speed. It is in.
- the auxiliary member 10 may be disposed on the Re side (second metal member 2 side) to perform the friction stirring step.
- the joining method according to the second embodiment will be described. As shown in FIG. 6, the joining method according to the second embodiment is different from the first embodiment in that an auxiliary member 20 having an L-shaped cross section is used. The joining method according to the second embodiment will be described with a focus on the differences from the first embodiment.
- the joining method according to the present embodiment performs a butt process, an arrangement process, a friction stirring process, and a removal process. Since the matching process is the same as that of the first embodiment, description thereof is omitted.
- the arranging step is a step of arranging the auxiliary member 20 at the inner corners of the first metal member 1 and the second metal member 2.
- the placement step is a step of placing the auxiliary member 20 in the inner corner composed of the first metal member 1 and the second metal member 2 as shown in FIG.
- the auxiliary member 20 is a metal member having an L-shaped cross section.
- the auxiliary member 20 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 20 is made of the same material as the first metal member 1 and the second metal member 2.
- board thickness of the auxiliary member 20 is suitably set so that the plasticization area
- the outer surfaces 20c, 20c of the auxiliary member 20, the side surface 1b of the first metal member 1, and the side surface 2b of the second metal member 2 are brought into surface contact with each other. Moreover, the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 20 are restrained immovably using a jig
- the friction stirring step is a step of joining the butted portion J1 of the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for joining.
- the stirring pin F2 rotated to the right is inserted from the inner corner of the auxiliary member 20 (the corners of the inner surfaces 20b and 20b), and the insertion depth of the stirring pin F2 is set so as to reach the abutting portion J1.
- the friction stirring step only the stirring pin F2 rotated to the right is inserted into the inner corner, and the bonded metal member and the connecting portion F1 are moved while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed.
- the removing step is a step of removing the auxiliary members 20 and 20 separated by the friction stirring step from the first metal member 1 and the second metal member 2 as shown in FIG.
- the auxiliary members 20 and 20 are bent and removed in directions away from the first metal member 1 and the second metal member 2, respectively.
- the first metal member 1 and the second metal member 2 are joined in a substantially L-shaped cross section, and the first metal member 1 and the second metal member 2 are joined.
- the auxiliary member 20 can also be friction stir welded at the same time to prevent metal shortage at the joint (plasticization region W).
- the burrs V and V are formed on the auxiliary members 20 and 20 divided by the friction stirring process, respectively.
- the auxiliary member 20 can be removed together in the removing process.
- flash can be performed easily.
- the divided auxiliary members 20 and 20 are formed on both sides of the inner corner, so that the work of removing burrs becomes easier.
- the end surface of the auxiliary member 20 is inclined so that the plate thickness becomes thinner as it goes to the inner corner.
- the auxiliary member 20 may use a removing device or the like, in the present embodiment, the auxiliary member 20 can be easily removed manually.
- the joining method according to the third embodiment of the present invention will be described. As shown in FIG. 9, the joining method according to the third embodiment is different from the first embodiment in that the first metal member 1 and the second metal member 2 are butted in a T-shaped cross section. The joining method according to the third embodiment will be described with a focus on differences from the first embodiment.
- the joining method which concerns on 3rd embodiment performs a butt
- the butting process is a process in which the first metal member 1 and the second metal member 2 are butted in a T-shaped cross section.
- the side surface 1b of the first metal member 1 and the end surface 2a of the second metal member 2 are butted to form a butting portion J2.
- the arranging step is a step of arranging the auxiliary members 10 and 10 at inner corners formed on both sides with the second metal member 2 sandwiched between the first metal member 1 and the second metal member 2.
- the side surface 10c of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into surface contact.
- the side surface 10c of the auxiliary member 10 and the side surface 1b of the first metal member 1 are brought into surface contact.
- the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 10 are restrained immovably using a jig
- the friction stirring step is a step of joining the abutting portion J ⁇ b> 2 between the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for joining.
- friction stirring is performed on the inner corners formed on both sides of the second metal member 2 in the same manner as the friction stirring step according to the first embodiment.
- regions W and W are formed along the butt
- the removal step is a step of removing the auxiliary members 10 from the first metal member 1 and the second metal member 2.
- the auxiliary member 10 is bent from the first metal member 1 or the second metal member 2 and removed from the second metal member 2.
- flash V formed in the side surface 1b of the 1st metal member 1 or the side surface 2c of the 2nd metal member 2 is removed using a cutting device etc.
- the first metal member 1 and the second metal member 2 are joined in a substantially T-shaped cross section, and the first metal member 1 and the second metal member 2 are joined.
- the auxiliary member 10 is also subjected to friction stir welding at the same time, thereby preventing metal shortage at each joint (plasticization region W).
- the insertion depth and insertion angle of the welding rotary tool F may be set so that the adjacent plasticized regions W, W overlap. By overlapping the plasticized regions W and W, airtightness and watertightness can be improved.
- the joining method according to the fourth embodiment of the present invention will be described. As shown in FIG. 10, the joining method according to the fourth embodiment is different from the third embodiment in that auxiliary members 20 and 20 having an L-shaped cross section are used. The joining method according to the fourth embodiment will be described with a focus on differences from the third embodiment.
- the joining method according to the fourth embodiment performs a butting process, an arranging process, a friction stirring process, and a removing process. Since the matching process is the same as that of the third embodiment, description thereof is omitted.
- the placement step is a step of arranging the auxiliary members 20 and 20 at inner corners formed on both sides of the second metal member 2 with the second metal member 2 sandwiched between the first metal member 1 and the second metal member 2.
- the auxiliary member 20 is made of metal and has an L-shaped cross section.
- the outer surfaces 20c and 20c of the auxiliary member 20 are brought into surface contact with the side surface 1b of the first metal member 1 and the side surfaces 2b and 2c of the second metal member 2, respectively.
- the 1st metal member 1, the 2nd metal member 2, and the auxiliary members 20 and 20 are restrained immovably using a jig
- the friction stirring step is a step of joining the abutting portion J2 between the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for bonding.
- friction stirring is performed on the inner corners formed on both sides of the second metal member 2 in the same manner as the friction stirring step according to the second embodiment. Thereby, the plasticization area
- the removal step is a step of removing the auxiliary members 20 and 20 separated in the friction stirring step from the first metal member 1 and the second metal member 2.
- the divided auxiliary members 20 and 20 are bent and removed in directions away from the first metal member 1 and the second metal member 2.
- the first metal member 1 and the second metal member 2 are joined in a substantially T-shaped cross section, and the first metal member 1 and the second metal member 2 are joined.
- the auxiliary member 20 is also subjected to friction stir welding at the same time, thereby preventing metal shortage at each joint (plasticized region W).
- the insertion depth and insertion angle of the welding rotary tool F may be set so that the adjacent plasticized regions W, W overlap.
- auxiliary members 10 and 20 may be left as they are in the first metal member 1 or the second metal member 2 without being removed.
- the end surface 1a of the first metal member 1 and the end surface 2a of the second metal member 2 may be cut obliquely so that both members are butted.
- a joining method according to a fifth embodiment of the present invention will be described in detail with reference to the drawings.
- a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
- the preparation step is a step of preparing the first metal member 101, the second metal member 102, and the auxiliary member 110 as shown in FIG.
- Both the first metal member 101 and the second metal member 102 have a rectangular parallelepiped shape (plate shape).
- the first metal member 101 is larger than the second metal member 102.
- “Two metal members having different shapes of the surfaces to be faced” in the claims means that the shape of the surfaces to be faced of the metal members is different from that of the first metal member 101 as in this embodiment. This also includes the case where the surface 101b and the surface of the second metal member 102, such as the back surface 102c, have different sizes (similar cases).
- the material of the first metal member 101 and the second metal member 102 is not particularly limited as long as it is a metal that can be frictionally stirred.
- a metal that can be frictionally stirred aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, etc. May be selected as appropriate.
- the auxiliary member 110 is a metal thin plate-like frame member having a rectangular hollow portion 111 at the center.
- the auxiliary member 110 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 110 is made of the same material as the first metal member 101 and the second metal member 102.
- a slit 110d that extends continuously in the width direction is formed in a part of the auxiliary member 110.
- the butting process is a process in which the first metal member 101 and the second metal member 102 are butted together.
- the center portion of the front surface 101b of the first metal member 101 and the back surface 102c of the second metal member 102 are butted.
- matching part J11 is formed.
- an inner corner is formed by the surface 101 b of the first metal member 101 and the four side surfaces 102 d of the second metal member 102.
- a frame-shaped exposed portion that is not covered with the second metal member 102 is formed on the surface 101 b of the first metal member 101.
- the placement step is a step of placing the auxiliary member 110 in the inner corner as shown in FIG.
- the second metal member 102 is inserted through the hollow portion 111 of the auxiliary member 110, and the auxiliary member 110 is arranged on the surface 101 b of the first metal member 101.
- the planar shape of the auxiliary member 110 is the same as the exposed portion of the first metal member 101. That is, when the hollow portion 111 of the auxiliary member 110 is passed through the second metal member 102, the second metal member 102 is disposed on the exposed portion of the surface 101b of the first metal member 101 without a gap.
- the inner peripheral edge of the auxiliary member 110 contacts the side surface 102d of the second metal member 102 or faces the side surface 102d with a fine gap.
- board thickness of the auxiliary member 110 is suitably set to such an extent that the plasticization area
- the friction stirring step is a step of joining the butted portion J11 of the first metal member 101 and the second metal member 102 by friction stirring using the rotating tool F for bonding, as shown in FIGS.
- the joining rotary tool F includes a connecting portion F1 and a stirring pin F2.
- the spiral groove is formed in a counterclockwise direction from the base end toward the tip end in order to rotate the joining rotary tool F to the right.
- the spiral groove is formed counterclockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end.
- the rotating tool F for joining may be attached to a friction stirrer such as a machining center, but may be attached to, for example, an arm robot having a rotation driving means such as a spindle unit at the tip.
- a friction stirrer such as a machining center
- an arm robot having a rotation driving means such as a spindle unit at the tip.
- the agitation pin F2 of the rotating tool F for rotation rotated to the start position Sp set on the surface 110b of the auxiliary member 110 is inserted and moved toward the inner corner. Move.
- the stirring pin F2 reaches the inner corner, the rotation center axis Fc of the joining rotary tool F is inclined outward with respect to the second metal member 102 as shown in FIG.
- the joining rotary tool F is relatively moved over the periphery of the second metal member 102 in the inclined state, and the butt joint J1 is friction stir welded.
- a plasticized region W is formed in the movement locus of the welding rotary tool F.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 110 is positioned on the right side in the traveling direction of the joining rotary tool F.
- the rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate.
- the joining rotary tool F may be rotated counterclockwise while the auxiliary member 110 is disposed on the right side in the traveling direction of the joining rotary tool F.
- the auxiliary member 110 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right.
- the preferable positional relationship between the auxiliary member 110 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
- the insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the butting portion J11 are in contact with each other.
- joining is performed at the end position Ep set on the surface 110 b of the auxiliary member 110.
- the rotary tool F is removed.
- the punched hole of the bonding rotary tool F is formed, but the welded hole may be repaired by overlay welding.
- the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
- the removal step is a step of removing the auxiliary member 10 from the first metal member 1 as shown in FIG.
- the auxiliary member 110 flips up the end of the auxiliary member 110 with the slit 110d (see FIG. 15) as a boundary, and as shown in FIG. 17, the auxiliary member 110 is away from the surface 101b of the first metal member 101. And the auxiliary member 110 is removed from the first metal member 101.
- the first metal member 101 and the second metal member 102 are joined, and in addition to the first metal member 101 and the second metal member 102, the auxiliary member 110 is also used.
- the auxiliary member 110 is also used.
- the burr V is formed on the auxiliary member 110 by the friction stirring process, but the auxiliary member 110 can be removed together in the removing process.
- flash V can be performed easily.
- the auxiliary member 110 may use a removing device or the like, in the present embodiment, the auxiliary member 110 can be easily removed manually.
- the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
- the stirring pin F2 of the rotating tool F for welding is in contact with the first metal member 101, the second metal member 102, and the auxiliary member 110, the stirring pin is inserted to a deep position of the butt portion J11. Can be inserted. Thereby, the 1st metal member 101 and the 2nd metal member 102 can be joined suitably.
- the auxiliary member 110 is arranged on the right side in the traveling direction and the welding rotary tool F is rotated to the right, so the auxiliary member 110 side is the Re side.
- the temperature of the plastic fluidized material is more likely to rise on the Ad side than on the Re side of the plasticizing region W, so that more burrs V are generated on the Ad side. Tend to.
- the rotational speed of the bonding rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that burrs V are generated on the Re side due to the higher rotational speed.
- the rotation speed of the welding rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 110 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 110 side. Thereby, since the burr
- the joining conditions include the rotational speed, the rotational direction, the traveling direction, the moving speed (feeding speed), the inclination angle (taper angle) of the stirring pin F2, the first metal member 101, and the second metal member 102. Further, it is determined by each element such as the material of the auxiliary member 110, the thickness of each member, and the combination of these elements. It is preferable to arrange the auxiliary member 110 on the side where burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
- the auxiliary member 110 can be easily removed from the slit 110d as a starting point in the removal process.
- the joining strength can be increased by overlapping the start and end of the plasticized region W.
- the joining method according to the sixth embodiment will be described.
- a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
- the sixth embodiment is mainly different from the fifth embodiment in that the auxiliary member 120 is arranged along the second metal member 102 side.
- the description according to the present embodiment the description will focus on parts that are different from the fifth embodiment.
- the preparation step is a step of preparing a first metal member 101, a second metal member 102, and four auxiliary members 120 as shown in FIG.
- the auxiliary member 120 is a plate-like member made of the same material as the first metal member 101 and the second metal member 102.
- board thickness of the auxiliary member 120 is suitably set to such an extent that the plasticization area
- the height of the auxiliary member 120 is substantially equal to the height of the side surface 102 d of the second metal member 102.
- the length of the auxiliary member 120 is substantially the same as the length of the side surface 102d.
- the auxiliary member 120 is comprised by the four plate-shaped members in this embodiment, it is good also as an integrally formed frame-shaped member.
- positioning process is a process of arrange
- four auxiliary members 120 are arranged on the four side surfaces 102 d of the second metal member 102, respectively. That is, in the arranging step, the side surface 102 d of the second metal member 102 and the side surface 120 b of the auxiliary member 120 are brought into surface contact, and the outer peripheral surface of the second metal member 102 is covered with the auxiliary member 120. The end surface of the auxiliary member 120 is brought into contact with the surface 101 b of the first metal member 101.
- the friction stirring step is a step of joining the butted portion J1 between the first metal member 101 and the second metal member 102 by friction stirring using the welding rotary tool F.
- the agitation pin F2 of the rotating tool for welding F rotated counterclockwise is inserted into the start position Sp set on the surface 101b of the first metal member 101, and is relatively moved toward the inner corner.
- the rotation center axis Fc of the welding rotary tool F is inclined outward as shown in FIG.
- the rotating tool F for joining is relatively moved over the circumference
- a plasticized region W is formed in the movement locus of the welding rotary tool F.
- the friction stirring step only the stirring pin F2 rotated counterclockwise is inserted into the butting portion J1, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated from each other.
- the friction stir welding is performed with the base end portion of the stirring pin F2 exposed.
- the rotation tool F for joining is relatively moved along the abutting part J11 in the state which made the 1st metal member 101, the 2nd metal member 102, the auxiliary member 120, and the stirring pin F2 contact.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 120 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the butt
- the joining rotary tool F is made to make a round around the second metal member 102 and the plasticized region W is overlapped, the end position Ep set on the surface 101 b of the first metal member 101. Then, the joining rotary tool F is detached.
- the removal step is a step of removing the four auxiliary members 120 from the second metal member 102 as shown in FIG.
- the auxiliary member 120 is bent in a direction away from the side surface 102d of the second metal member 102, and the auxiliary member 120 is removed from the second metal member 102, respectively.
- the first metal member 101 and the second metal member 102 are joined, and in addition to the first metal member 101 and the second metal member 102, the auxiliary member 120 is also used.
- the auxiliary member 120 is also used.
- the burrs V are formed in the auxiliary member 120 by the friction stirring process, but the auxiliary member 120 can be removed together in the removing process.
- flash V can be performed easily.
- the auxiliary member 120 may use a removing device or the like, in the present embodiment, the auxiliary member 120 can be easily removed manually.
- the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
- the auxiliary member 120 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary member 120 is rotated in order to rotate the bonding rotary tool F counterclockwise.
- the side is the Re side.
- burrs V are generated on the Re side, that is, on the auxiliary member 120 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that a large number of burrs V are formed on the auxiliary member 20 side.
- flash V formed in the auxiliary member 120 is removed with the auxiliary member 120, the burr removal process can be performed more easily.
- the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
- the joining method according to the seventh embodiment will be described.
- a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
- the seventh embodiment is mainly different from the sixth embodiment in that the second metal member 103 has a cylindrical shape.
- the preparation step is a step of preparing a first metal member 201, a second metal member 203, and an auxiliary member 230 as shown in FIG.
- the second metal member 203 is a metal member having a cylindrical shape.
- the material of the second metal member 203 is the same as that of the first metal member 201.
- the auxiliary member 230 is a metal member having a thin plate shape and a cylindrical shape.
- the material of the auxiliary member 230 is the same as that of the first metal member 201.
- the inner diameter of the auxiliary member 230 is substantially equal to the outer diameter of the second metal member 203.
- the plate thickness of the auxiliary member 230 is appropriately set to such an extent that the plasticized region W does not run out of metal during the friction stirring process described later.
- a part of the auxiliary member 230 is formed with a slit 230d continuous in the height direction.
- the butting process is a process in which the surface 201b of the first metal member 201 and the end surface 203c of the second metal member 203 are butted.
- the butted portion J12 is formed by butting the surface 201b of the first metal member 201 and the end surface 203c of the second metal member 203.
- the planar shape of the butted portion J12 is a circle.
- the placement step is a step of placing the auxiliary member 230 at the inner corner as shown in FIG.
- the side surface 230b of the auxiliary member 230 is brought into surface contact with the outer peripheral surface 203d of the second metal member 203 while the end surface of the auxiliary member 230 is brought into contact with the surface 201b of the first metal member 201.
- the friction stirring step is a step of joining the abutting portion J12 of the first metal member 201 and the second metal member 203 by friction stirring using the welding rotary tool F.
- the joining conditions of the friction stirring step are set so that burrs are generated in the auxiliary member 230 in the same manner as in the sixth embodiment.
- the friction stir process is substantially the same as the friction stir process of the sixth embodiment, and detailed description thereof is omitted.
- the removal step is a step of removing the auxiliary member 230 from the second metal member 203, although a specific illustration is omitted.
- the auxiliary member 230 is removed from the second metal member 203 by bending the upper end portion of the auxiliary member 230 in a direction away from the second metal member 203.
- the auxiliary member 230 can be easily removed by turning the slit 230d as a starting point.
- the joining method according to the seventh embodiment described above substantially the same effect as the joining method according to the sixth embodiment can be obtained.
- the 1st metal member 201 which exhibits plate shape, and the 2nd metal member 203 which exhibits columnar shape can be joined.
- the auxiliary member 230 can be friction-stirred simultaneously, and the metal shortage of a junction part (plasticization area
- the removal process which concerns on this embodiment the auxiliary member 230 can be easily removed starting from the slit 230d.
- the second metal member may be a columnar member having a polygonal cross section. Further, a through hole penetrating in the height direction of the first metal member 201 may be provided. In the butting process in this case, butting is performed so that the through hole of the first metal member 201 is covered with the second metal member.
- the joining method according to the eighth embodiment will be described.
- a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
- the eighth embodiment is different from the seventh embodiment in that the second metal member 204 has a cylindrical shape.
- the preparation step is a step of preparing a first metal member 201, a second metal member 204, and an auxiliary member 240 as shown in FIG.
- a through hole 201e that penetrates in the height direction is formed in the center of the first metal member 201.
- the second metal member 204 is a metal member having a cylindrical shape.
- the material of the auxiliary member 240 is the same as that of the first metal member.
- the hollow portion of the second metal member 204 communicates with the through hole 201e.
- the auxiliary member 240 is a plate-shaped metal member provided with a hollow portion 241.
- the material of the auxiliary member 240 is the same as that of the first metal member 201.
- the inner diameter of the hollow portion 241 is substantially the same as the outer diameter of the second metal member 204.
- the plate thickness of the auxiliary member 240 is appropriately set to such an extent that the plasticized region W does not run out of metal during the friction stirring step described later.
- the auxiliary member 240 has a slit 240d continuous in the width direction.
- the butting process is a process of butting the surface 201b of the first metal member 201 and the end surface 204c of the second metal member 204 as shown in FIG.
- the butted portion J13 is formed by butting the surface 201b of the first metal member 201 with the end surface 204c of the second metal member 204.
- the planar shape of the butting portion J13 is a ring shape.
- the placement step is a step of placing the auxiliary member 240 at the inner corner as shown in FIG.
- the back surface 240 c of the auxiliary member 240 is brought into surface contact with the front surface 201 b of the first metal member 201.
- the friction stirring step is a step of joining the abutting portion J13 of the first metal member 201 and the second metal member 204 by friction stirring using the welding rotary tool F.
- the joining conditions of the friction stirring process are set so that burrs are generated in the auxiliary member 240 in the same manner as in the seventh embodiment.
- the friction stir process is substantially the same as the friction stir process of the seventh embodiment, and detailed description thereof is omitted.
- the removal step is a step of removing the auxiliary member 240 from the first metal member 201, although a specific illustration is omitted.
- the auxiliary member 240 is bent in a direction away from the first metal member 201, and the auxiliary member 240 is removed from the first metal member 201. Further, in the removing process, it is easy to remove if the slit 240d is turned to the starting point.
- the joining method according to the eighth embodiment described above substantially the same effect as the joining method according to the seventh embodiment can be obtained.
- the 1st metal member 201 which exhibits plate shape, and the 2nd metal member 204 which exhibits cylindrical shape can be joined.
- the auxiliary member 240 can be friction-stirred simultaneously, and the metal shortage of a junction part (plasticization area
- the removal process which concerns on this embodiment the auxiliary member 240 can be easily removed starting from the slit 240d.
- the second metal member 204 has a cylindrical shape, but may be a cylindrical member having another cross section, for example. Further, the through hole 201e of the first metal member 201 may not be provided.
- the auxiliary member is arranged only on one side with respect to the joining rotary tool F.
- the auxiliary member may be arranged on both sides of the joining rotary tool F.
- the auxiliary members arranged on both sides of the joining rotary tool F are removed. That is, in the removing step of the present invention, the auxiliary member may be removed from at least one of the first metal member 201 and the second metal member 203.
- the whole circumference of the outer peripheral surface 203d of the 2nd metal member 203 or the whole surface 201b (exposed part) of the 1st metal member 201 is made into the auxiliary members 230 and 240. Although each is covered, you may make it cover at least one part.
- the preparation step is a step of preparing the jacket main body 302 and the sealing body 303.
- the jacket body 302 includes a bottom portion 310, a peripheral wall portion 311, and a support portion 312.
- the material of the jacket main body 302 may be a metal capable of friction stir, but is formed of a metal capable of friction stir, such as aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, and magnesium alloy.
- the jacket main body 302 is a box-shaped member having an upper opening.
- the bottom portion 310 has a rectangular shape in plan view.
- the peripheral wall portion 311 rises from the periphery of the bottom portion 310 and has a rectangular frame shape.
- the peripheral wall portion 311 includes wall portions 311A, 311B, 311C, and 311D.
- the walls 311A and 311B are opposed to each other and are short sides.
- the wall portions 311C and 311D are opposed to each other and are long side portions.
- a recess 313 is formed inside the jacket body 302.
- a step portion 315 is formed on the inner peripheral edge of the end surface 311 a of the peripheral wall portion 311.
- the step portion 315 includes a step bottom surface 315a formed at a position lower than the end surface 311a and a step side surface 315b rising from the step bottom surface 315a.
- the support portion 312 rises from the bottom portion 310 and extends from the wall portion 311B of the peripheral wall portion 311.
- the support portion 312 may be formed away from the peripheral wall portion 311 or may be omitted.
- the end surface 312a of the support portion 312 is flush with the step bottom surface 315a.
- a projecting portion 312 b is formed on the end surface 312 a of the support portion 312.
- the protrusion 312b has a cylindrical shape in the present embodiment.
- the protruding portion 312 b is a portion that is fitted with the sealing body 303.
- the sealing body 303 is a metal member that covers the opening of the jacket main body 302.
- the material of the sealing body 303 is not particularly limited, but is formed of the same material as that of the jacket body 302 in the present embodiment.
- the sealing body 303 includes a main body portion 321 and a plurality of fins 322.
- the main body 321 is a plate-like member having a rectangular shape in plan view.
- the main body portion 321 is a part placed on the step portion 315.
- board thickness dimension of the main-body part 321 is larger than the height dimension of the level
- the plate thickness dimension of the main body 321 is about twice the height dimension of the step side surface 315b.
- the fins 322 are plate-like members formed on the back surface 321b of the main body portion 321. A plurality of fins 322 are formed at a predetermined interval.
- the concave groove 323 is formed so that the protruding portion 312b is inserted at a position corresponding to the protruding portion 312b.
- the hollow portion of the concave groove 323 has a cylindrical shape in the present embodiment, but may be any shape as long as the protruding portion 312b can be inserted.
- the butting process is a process of matching the jacket main body 302 and the sealing body 303 as shown in FIG.
- the sealing body 303 is placed on the step portion 315 of the jacket main body 302.
- the side surface 321c of the main body portion 321 and the step side surface 315b are abutted to form the abutting portion J31.
- the back surface 321b of the main body 321 and the step bottom surface 315a are overlapped.
- the butting portion J31 is formed over the entire circumference of the sealing body 303.
- an inner corner is formed by the end surface 311 a of the peripheral wall portion 311 and the four side surfaces 321 c of the main body portion 321.
- the recessed groove 323 of the sealing body 303 is fitted into the protruding portion 312 b of the support portion 312. Thereby, the fitting part J32 is formed.
- the placement step is a step of placing the auxiliary member 330 on the jacket main body 302 as shown in FIG.
- the auxiliary member 330 is a plate-like member in which a hollow portion 331 having a rectangular shape in plan view is formed.
- the plate thickness dimension of the auxiliary member 330 is appropriately set to such an extent that a metal shortage does not occur at the joint in the second friction stirring step described later.
- the hollow portion 331 has the same shape as the planar shape of the sealing body 303.
- the material of the auxiliary member 330 is not particularly limited as long as it is a metal capable of friction stir, but in this embodiment, the material is the same as that of the jacket main body 302 and the sealing body 303.
- a slit 332 that is continuous in the width direction is formed in a part of the auxiliary member 330.
- the auxiliary member 330 is arranged on the end surface 311a of the peripheral wall 311 as shown in FIG. Thereby, the end surface 311 a is covered with the auxiliary member 330.
- the inner peripheral edge of the auxiliary member 330 is in surface contact with the side surface 321c of the main body 321 or is arranged with a fine gap.
- the entire end surface 311a is covered with the auxiliary member 330, but the size of the auxiliary member 330 may be adjusted so that a part of the end surface 311a is covered.
- the friction stir process is a process in which the jacket main body 302 and the sealing body 303 are friction stir welded using the rotating tool F for joining.
- the joining rotary tool F includes a connecting portion F1 and a stirring pin F2.
- the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right.
- a first friction stirring step and a second friction stirring step are performed.
- the first friction stirring step is a step of joining the support portion 312 and the sealing body 303.
- the agitation pin F2 of the rotating tool F for bonding rotated to the right is inserted into the start position Sp1 set on the surface 321a of the sealing body 303, and the wall 311B is The auxiliary member 330 is relatively moved toward the end position Ep1 set. As shown in FIG.
- the stirring pin F2 reaches the protruding portion 312b, or the protruding portion 312b and the groove 323 are in contact with the stirring pin F2 only in the sealing body 303.
- the fitting portion J32 is friction stir welded.
- a plasticized region W1 is formed in the movement locus of the welding rotary tool F.
- the joining rotary tool F reaches the end position Ep1, the joining rotary tool F is once detached. At this time, a punch hole of the bonding rotary tool F is formed, but overlay welding may be performed on the punch hole. Alternatively, the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
- the second friction stirring step is a step of joining the peripheral wall portion 311 and the sealing body 303.
- the agitation pin F2 of the welding rotary tool F rotated to the right is inserted into the start position Sp2 set on the auxiliary member 330, and is relatively moved toward the inner corner.
- the stirring pin F2 reaches the inner corner, as shown in FIG. 35, the rotation center axis Fc of the joining rotary tool F is inclined outward.
- the rotating tool F for joining is relatively moved over the circumference
- a plasticized region W2 is formed in the movement locus of the welding rotary tool F.
- the stirring pin F2 rotated to the right is inserted into the abutting portion J31, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated.
- the friction stir welding is performed with the base end portion of the stirring pin F2 exposed.
- the joining rotary tool F is relatively moved along the abutting portion J31 in a state where the jacket main body 302, the sealing body 303 and the auxiliary member 330 are in contact with the stirring pin F2.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 330 is positioned on the right side of the traveling direction of the joining rotary tool F.
- the rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate.
- the joining rotary tool F may be rotated counterclockwise while the auxiliary member 330 is disposed on the right side in the traveling direction of the joining rotary tool F.
- the auxiliary member 330 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right.
- the preferable positional relationship between the auxiliary member 330 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
- the insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the butting portion J31 are in contact with each other. As shown in FIG. 34, when the joining rotary tool F is made to make a round around the sealing body 303 and the plasticizing region W2 is overlapped, the joining rotary tool F is set at the end position Ep2 set on the auxiliary member 330. To leave.
- the removal step is a step of removing the auxiliary member 330 from the jacket main body 302 as shown in FIG.
- the auxiliary member 330 turns up the end of the auxiliary member 330 with the slit 332 (see FIG. 34) as a boundary, and bends the auxiliary member 330 in a direction away from the end surface 311a of the peripheral wall 311 as shown in FIG. Then, the auxiliary member 330 is removed from the peripheral wall portion 311.
- the liquid cooling jacket 301 is formed by the above manufacturing method.
- the liquid cooling jacket 301 is a metal hollow member having a hollow portion.
- a heat transport fluid for example, water
- heat exchange can be performed with a heating element (not shown) installed in the jacket main body 302 or the sealing body 303.
- the liquid cooling jacket 301 which concerns on this embodiment has the several fin 322, it can improve heat exchange efficiency.
- the auxiliary member 330 is disposed in the inner corner, and the auxiliary member 330 is simultaneously frictionally stirred in addition to the jacket main body 302 and the sealing body 303 to thereby join the joint portion. It is possible to prevent metal shortage in (plasticized region W2). Further, since the burr V can be removed together with the auxiliary member 330 by the removing step, the burr V can be easily removed.
- the rotation tool F for bonding can be easily placed at the inner corner. Can be inserted.
- the support portion 312 may be omitted, the support portion 312 is provided as in the present embodiment, and the support portion 312 (protruding portion 312b) and the sealing body 303 are joined to each other, so that the liquid cooling jacket 301 is connected. Strength can be increased. Further, since the protruding portion 312b of the support portion 312 is fitted in the concave groove 323 of the sealing body 303 in the butting step, the positioning operation of the sealing body 303 can be easily performed. Moreover, the position shift of the sealing body 303 can be prevented in the first friction stirring step.
- the end position (detachment position) Ep1 of the welding rotary tool F is set on the peripheral wall portion 311 so that a hole for the stirring pin F2 is formed at a position away from the recess 313. Therefore, the water tightness and air tightness of the liquid cooling jacket 301 can be improved.
- the burr V is formed on the auxiliary member 330 by the second friction stirring step, but the auxiliary member 330 can be removed together in the removing step.
- flash V can be performed easily.
- the auxiliary member 330 may use a removing device or the like, in the present embodiment, the auxiliary member 330 can be easily removed manually.
- the load acting on the friction stirrer can be reduced as compared with the case where the shoulder portion of the rotary tool is brought into contact. Further, since the friction stir is performed in a state where only the stirring pin F2 of the rotating tool for joining F is in contact with the jacket main body 302 and the sealing body 303, the stirring pin F2 can be inserted to a deep position of the butt portion J31. Thereby, the jacket main body 302 and the sealing body 303 can be joined suitably.
- the auxiliary member 330 is disposed on the right side in the traveling direction and the rotating tool F for rotation is rotated to the right, so the auxiliary member 330 side is the Re side. .
- the side opposite to the Re side is the Ad side.
- the temperature of the plastic fluidized material is likely to rise more on the Ad side than on the Re side of the plasticizing region W2, so that more burrs V are generated on the Ad side. Tend to.
- the rotational speed of the bonding rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that more burrs V are generated on the Re side due to the higher rotational speed.
- the rotational speed of the joining rotary tool F is set to be high, a burr V is generated on the Re side, that is, the auxiliary member 330 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that many burrs V are formed on the auxiliary member 330 side. Thereby, since the burr
- the joining conditions include the rotational speed, rotational direction, traveling direction, moving speed (feed speed) of the rotating tool F for joining, the inclination angle (taper angle) of the stirring pin F2, the jacket body 302, the sealing body 303, and the auxiliary member. It is determined by each element such as 330 materials and the thickness of each member and the combination of these elements. It is preferable to arrange the auxiliary member 330 on the side where the burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
- the auxiliary member 330 can be easily removed from the slit 332 as a starting point during the removal process.
- the sealing body 303 having a large thickness is used, it is possible to prevent the sealing body 303 from being deformed by frictional heat. Moreover, like the 2nd friction stirring process of this embodiment, the water-tightness and airtightness of the liquid cooling jacket 301 can be improved more by making the start end and terminal end side of the plasticization area
- the tenth embodiment is mainly different from the ninth embodiment in that the auxiliary member 440 is brought into surface contact with the side surface 421c of the sealing body 403.
- the description according to the present embodiment the description will focus on parts that are different from the ninth embodiment.
- the butting process is a process of butting the jacket body 402 and the sealing body 403 in the same manner as in the ninth embodiment to form the butting portion J41. As shown in FIG. 38, an inner corner is formed by the end surface 411 a of the peripheral wall portion 411 and the side surface 421 c of the sealing body 403.
- the placement step is a step of placing the auxiliary member 440 in the inner corner.
- the auxiliary member 440 is a frame-like member having a hollow portion 441 that is rectangular in plan view.
- the plate thickness of the auxiliary member 440 is appropriately set so that the joining portion does not run out of metal during the second friction stir welding described later.
- the hollow part 441 has the same shape as the planar shape of the main body part 421.
- the end surface of the auxiliary member 440 is brought into contact with the end surface 411a of the peripheral wall portion 411, and the inner peripheral surface of the auxiliary member 440 is brought into surface contact with the four side surfaces 421c of the main body portion 421.
- the height dimension of the auxiliary member 440 is the same as the height dimension of the portion of the side surface 421c of the main body 421 that is exposed to the outside. In the present embodiment, the entire side surface 421c is covered with the auxiliary member 440, but a part thereof may be covered.
- the friction stirring step is a step of friction stir welding the jacket main body 402 and the sealing body 403 using the rotating tool F for bonding as shown in FIGS. 40 and 41.
- a first friction stirring process and a second friction stirring process are performed. Since the first friction stirring step is the same as that of the ninth embodiment, detailed description thereof is omitted.
- the second friction stirring step is a step of performing friction stir welding between the peripheral wall portion 411 of the jacket body 402 and the sealing body 403 using the rotating tool F for bonding.
- the stirring pin F2 of the rotating tool F for rotation rotated to the left is inserted into the start position Sp2 set on the end surface 411a of the peripheral wall portion 411, and is relatively moved toward the inner corner.
- the stirring pin F2 reaches the inner corner, as shown in FIG. 41, the rotation center axis Fc of the joining rotary tool F is inclined outward.
- the rotating tool F for bonding is relatively moved over the periphery of the sealing body 403 in the inclined state, and the butt portion J41 is friction stir welded.
- a plasticized region W2 is formed in the movement locus of the welding rotary tool F.
- the second friction stirring step only the stirring pin F2 rotated counterclockwise is inserted into the abutting portion J41, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the joining rotary tool F is relatively moved along the abutting portion J41 in a state where the jacket main body 402, the sealing body 403, and the auxiliary member 440 are in contact with the stirring pin F2.
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 440 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the butt
- the removing step is a step of removing the auxiliary member 440 from the sealing body 403 as shown in FIG.
- the auxiliary member 440 is bent in a direction away from the side surface 421c of the sealing body 403, and the auxiliary member 440 is removed from the sealing body 403.
- the liquid cooling jacket 401 is formed by the above process.
- the jacket main body 402 and the sealing body 403 are joined, and in addition to the jacket main body 402 and the sealing body 403, the auxiliary member 440 is also simultaneously joined by friction stir welding. It is possible to prevent metal shortage in the portion (plasticization region W2).
- the burr V is formed on the auxiliary member 440 by the friction stirring process, but it can be removed together with the auxiliary member 440 in the removing process.
- flash V can be performed easily.
- the auxiliary member 440 may use a removing device or the like, in the present embodiment, the auxiliary member 440 can be easily removed manually.
- the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
- the auxiliary member 440 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary rotating tool F is rotated counterclockwise.
- the member 440 side is the Re side.
- burrs V are generated on the Re side, that is, on the auxiliary member 440 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 440 side.
- flash V formed in the auxiliary member 440 is removed with the auxiliary member 440, a burr
- the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
- the auxiliary member is arranged on one side of the inner corner, but the auxiliary member may be arranged on both sides of the inner corner.
- auxiliary members on which burrs are formed are removed on both sides of the plasticized region. That is, in the removing process according to the present invention, the auxiliary member may be removed from at least one of the jacket main body 402 and the sealing body 403.
- the protruding portion 412b is provided on the support portion 412, but the protruding portion 412b may be omitted and the support portion 412 and the sealing body 403 may be joined.
- the first friction stirring step and the second friction stirring step are performed discontinuously. However, after the first friction stirring step is finished, the welding rotary tool F is not detached and the second friction stirring step is performed as it is. You may perform a friction stirring process. Thereby, a joining cycle can be raised more.
- the liquid cooling jacket 401 is a rectangular parallelepiped in appearance, but may be a columnar body having a cylindrical shape in appearance and other polygonal sections, for example.
- the preparation step is a step of preparing a jacket body 502 and a sealing body 503 as shown in FIG.
- the jacket main body 502 includes a bottom portion 510, a peripheral wall portion 511, and a support portion 512.
- the material of the jacket main body 502 may be a metal capable of friction stir, but is formed of a metal capable of friction stir, such as aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, and the like.
- the jacket main body 502 is a box-shaped member that opens upward.
- the bottom 510 has a rectangular shape in plan view.
- the peripheral wall portion 511 rises from the periphery of the bottom portion 510 and has a rectangular frame shape.
- the peripheral wall portion 511 includes wall portions 511A, 511B, 511C, and 511D.
- the walls 511A and 511B are opposed to each other and are short sides.
- the walls 511C and 511D are opposed to each other and are long sides.
- a recess 513 is formed inside the jacket body 502.
- the support portion 512 rises from the bottom portion 510 and extends from the wall portion 511B of the peripheral wall portion 511.
- the support portion 512 may be formed away from the peripheral wall portion 511 or may be omitted.
- the end surface 512 a of the support portion 512 is flush with the end surface 511 a of the peripheral wall portion 511.
- a projecting portion 512 b is formed on the end surface 512 a of the support portion 512.
- the protrusion 512b has a columnar shape in the present embodiment.
- the protruding portion 512b is a portion that is fitted to the sealing body 503.
- the sealing body 503 is a metal member that covers the opening of the jacket body 502.
- the material of the sealing body 503 is not particularly limited, but is formed of the same material as that of the jacket body 502 in the present embodiment.
- the sealing body 503 is a plate-like member having a rectangular shape in plan view.
- Three concave grooves 504 are formed on the back surface 503 b of the sealing body 503.
- the concave groove 504 is formed so that the protruding portion 512b is inserted at a position corresponding to the protruding portion 512b.
- the hollow portion of the concave groove 504 has a columnar shape in the present embodiment, but may be any shape as long as the protruding portion 512b can be inserted.
- the polymerization step is a step of overlapping the jacket main body 502 and the sealing body 503 as shown in FIG.
- the sealing body 503 is placed on the end surface 511 a of the peripheral wall portion 511.
- the end surface 511a of the peripheral wall portion 511 and the back surface 503b of the sealing body 503 are overlapped to form the overlapping portion J51.
- the overlapping portion J51 is formed over the entire circumference of the sealing body 503.
- an inner corner is formed by the end surface 511 a of the peripheral wall portion 511 and the four side surfaces 503 c of the sealing body 503.
- the concave groove 504 of the sealing body 503 is fitted into the protruding portion 512 b of the support portion 512. Thereby, the fitting part J52 is formed.
- the placement step is a step of placing the auxiliary member 530 on the jacket body 502 as shown in FIG.
- the auxiliary member 530 is a plate-like member in which a hollow portion 531 having a rectangular shape in plan view is formed.
- the plate thickness dimension of the auxiliary member 530 is appropriately set to such an extent that a metal shortage does not occur at the joint in the second friction stirring step described later.
- the hollow portion 531 has the same shape as the planar shape of the sealing body 503.
- the material of the auxiliary member 530 is not particularly limited as long as it is a metal capable of friction stir, but in this embodiment, the material is the same as that of the jacket body 502 and the sealing body 503.
- a slit 532 continuous in the width direction is formed in a part of the auxiliary member 530.
- the auxiliary member 530 is arranged on the end surface 511a of the peripheral wall portion 511 as shown in FIG. Thereby, the end surface 511a is covered with the auxiliary member 530.
- the inner peripheral edge of the auxiliary member 530 is in surface contact with the side surface 503c of the sealing body 503 or is disposed with a fine gap.
- the entire end surface 511a is covered with the auxiliary member 530, but the size of the auxiliary member 530 may be adjusted so that a part of the end surface 511a is covered.
- the friction stir process is a process in which the jacket main body 502 and the sealing body 503 are friction stir welded using the joining rotary tool F.
- the joining rotary tool F includes a connecting portion F1 and a stirring pin F2.
- the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the jacket main body 502, the sealing body 503, and the auxiliary member 530) can be reduced.
- the spiral groove may be omitted.
- the first friction stirring step is a step of joining the support portion 512 and the sealing body 503.
- the stirring pin F2 of the rotating tool F for bonding rotated to the right is inserted into the start position Sp1 set on the surface 503a of the sealing body 503.
- the start position Sp1 is set to a position corresponding to the outer edge of the protruding portion 512b.
- the stirring pin F2 reaches the protruding portion 512b, or the protruding portion 512b and the concave groove 504 are in contact with the stirring pin F2 only in the sealing body 503.
- the fitting portion J52 is friction stir welded.
- a plasticized region W1 is formed in the movement locus of the welding rotary tool F.
- the rotating tool F for joining is made to make one or more rounds around the protruding portion 512b, the rotating tool F for joining is detached.
- the same process is performed for each protrusion 512b (fitting portion J52).
- a punch hole of the rotating tool F for bonding is formed on the surface 503a of the sealing body 503.
- the punch hole may be repaired by overlay welding.
- the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
- the second friction stirring step is a step of joining the peripheral wall portion 511 and the sealing body 503.
- the agitation pin F2 of the welding rotary tool F rotated to the right is inserted into the start position Sp2 set on the auxiliary member 530, and is relatively moved toward the inner corner.
- the stirring pin F2 reaches the inner corner, as shown in FIG. 51, the rotation center axis Fc of the bonding rotary tool F is inclined outward with respect to the sealing body 503.
- polymerization part J51 is friction-stir-welded by making it relatively move over the circumference
- a plasticized region W2 is formed in the movement locus of the welding rotary tool F.
- the stirring pin F2 rotated to the right is inserted into the overlapping portion J51, and the bonded metal member and the connecting portion F1 are moved relative to each other while being separated.
- the friction stir welding is performed with the base end portion of the stirring pin F2 exposed.
- the rotation tool F for joining is relatively moved along the superposition
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 530 is positioned on the right side in the traveling direction of the joining rotary tool F.
- the rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate.
- the joining rotary tool F may be rotated counterclockwise while the auxiliary member 530 is disposed on the right side in the traveling direction of the joining rotary tool F.
- the auxiliary member 530 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right.
- the preferable positional relationship between the auxiliary member 530 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
- the insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the overlapping portion J51 are in contact with each other. As shown in FIG. 50, when the joining rotary tool F is made to make a round around the sealing body 503 and the plasticizing region W2 is overlapped, the joining rotary tool F is set at the end position Ep2 set in the auxiliary member 530. To leave.
- the removing step is a step of removing the auxiliary member 530 from the jacket main body 502, as shown in FIG.
- the auxiliary member 530 turns up the end of the auxiliary member 530 with the slit 532 (see FIG. 50) as a boundary, and bends the auxiliary member 530 in a direction away from the end surface 511a of the peripheral wall 511 as shown in FIG. Then, the auxiliary member 530 is removed from the peripheral wall portion 511.
- the liquid cooling jacket 501 is formed by the above manufacturing method.
- the liquid cooling jacket 501 is a metal hollow member having a hollow portion.
- a heat transport fluid for example, water
- heat exchange can be performed with a heating element (not shown) installed in the jacket body 502 or the sealing body 503.
- the auxiliary member 530 is disposed in the inner corner, and the auxiliary member 530 is simultaneously frictionally stirred in addition to the jacket main body 502 and the sealing body 503 to thereby join the joint portion. It is possible to prevent metal shortage in (plasticized region W2). Further, since the burr V can be removed together with the auxiliary member 530 by the removing step, the burr V can be easily removed.
- the agitation rotating tool F can be easily inserted into the inner corner by performing friction agitation while the rotation center axis Fc of the agitation rotating tool F is inclined outward.
- the support portion 512 may be omitted, the support portion 512 is provided as in the present embodiment, and the support portion 512 (protruding portion 512b) and the sealing body 503 are joined to each other, so that the liquid cooling jacket 501 Strength can be increased.
- the projecting portion 512b of the support portion 512 is fitted into the concave groove 504 of the sealing body 503, so that the positioning operation of the sealing body 503 can be easily performed.
- the position shift of the sealing body 503 can be prevented in the first friction stirring step.
- flash V is formed in the auxiliary member 530 by the 2nd friction stirring process, However It can remove with the auxiliary member 530 in a removal process.
- the auxiliary member 530 may use a removing device or the like, in this embodiment, the auxiliary member 530 can be easily removed manually.
- the load acting on the friction stirrer can be reduced as compared with the case where the shoulder portion of the rotary tool is brought into contact.
- the stirring pin F2 can be inserted to a deep position of the overlapping portion J51. Thereby, the jacket main body 502 and the sealing body 503 can be joined suitably.
- the auxiliary member 530 is disposed on the right side in the traveling direction and the rotating tool F for rotation is rotated to the right, so that the auxiliary member 530 side is the Re side. .
- the side opposite to the Re side is the Ad side.
- the temperature of the plastic fluidized material is likely to rise more on the Ad side than on the Re side of the plasticizing region W2, so that more burrs V are generated on the Ad side. Tend to.
- the rotational speed of the joining rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 530 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that many burrs V are formed on the auxiliary member 530 side. Thereby, since the burr
- the joining conditions include the rotational speed of the joining rotary tool F, the rotational direction, the traveling direction moving speed (feed speed), the inclination angle (taper angle) of the stirring pin F2, the jacket body 502, the sealing body 503, and the auxiliary member 530.
- the material, the thickness of each member, etc., and the combination of these elements It is preferable to arrange the auxiliary member 530 on the side where the burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
- the auxiliary member 530 can be easily removed from the slit 532 as a starting point in the removal process.
- the water-tightness and airtightness of the liquid cooling jacket 501 can be further improved by overlapping (overlapping) the start end and the end side of the plasticizing region W2 as in the second friction stirring step of the present embodiment. .
- the twelfth embodiment is mainly different from the eleventh embodiment in that the auxiliary member 540 is in surface contact with the side surface 503c of the sealing body 503. In the description according to the present embodiment, the description will focus on parts that are different from the eleventh embodiment.
- polymerization process is a process of abutting the jacket main body 502 and the sealing body 503 in the same way as 11th embodiment, and forming the superposition
- the placement step is a step of placing the auxiliary member 540 in the inner corner.
- the auxiliary member 540 is a frame-like member provided with a hollow portion 541 that is rectangular in plan view.
- the auxiliary member 540 has a slit 542 that is continuous in the height direction.
- the plate thickness of the auxiliary member 540 is appropriately set so that the joined portion does not run out of metal during the second friction stir welding described later.
- the hollow part 541 has the same shape as the planar shape of the sealing body 503. In the arranging step, as shown in FIG.
- the end surface of the auxiliary member 540 is brought into contact with the end surface 511a of the peripheral wall portion 511, and the inner peripheral surface of the auxiliary member 540 is brought into surface contact with the four side surfaces 503c of the sealing body 503. .
- the height dimension of the auxiliary member 540 is the same as the height dimension of the side surface 503c of the sealing body 503. In the present embodiment, the entire side surface 503c is covered with the auxiliary member 540, but a part thereof may be covered.
- the friction stir step is a step of friction stir welding the jacket main body 502 and the sealing body 503 using the rotating tool F for bonding, as shown in FIGS.
- a first friction stirring process and a second friction stirring process are performed. Since the first friction stirring step is equivalent to the eleventh embodiment, detailed description thereof is omitted.
- the second friction stirring step is a step of friction stir welding the peripheral wall portion 511 of the jacket main body 502 and the sealing body 503 using the rotating tool F for bonding.
- the stirring pin F2 of the rotating tool F for welding rotated to the left is inserted into the start position Sp2 set on the end surface 511a of the peripheral wall portion 511, and is relatively moved toward the inner corner.
- the stirring pin F2 reaches the inner corner, as shown in FIG. 57 the rotation center axis Fc of the joining rotary tool F is inclined outward.
- polymerization part J51 is friction-stir-welded by relatively moving the rotary tool F for joining over the circumference
- a plasticized region W2 is formed in the movement locus of the welding rotary tool F.
- the stirring pin F2 rotated counterclockwise is inserted into the overlapping portion J51, and the bonded metal member and the connecting portion F1 are moved relative to each other while being separated.
- the friction stir welding is performed with the base end portion of the stirring pin F2 exposed.
- the rotation tool F for joining is relatively moved along the superposition
- the traveling direction of the joining rotary tool F is set so that the auxiliary member 540 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the superposition
- the removing step is a step of removing the auxiliary member 540 from the sealing body 503 as shown in FIG.
- the auxiliary member 540 is bent in a direction away from the side surface 503c of the sealing body 503, and the auxiliary member 540 is removed from the sealing body 503.
- the liquid cooling jacket 501 is formed by the above process.
- the jacket body 502 and the sealing body 503 are joined, and in addition to the jacket body 502 and the sealing body 503, the auxiliary member 540 is also joined by friction stir welding at the same time. It is possible to prevent metal shortage in the portion (plasticization region W2).
- the burr V is formed on the auxiliary member 540 by the friction stirring process, but it can be removed together with the auxiliary member 540 in the removing process.
- flash V can be performed easily.
- the auxiliary member 540 may use a removing device or the like, in the present embodiment, the auxiliary member 540 can be easily removed manually.
- the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
- the auxiliary member 540 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary rotary tool F is rotated counterclockwise.
- the member 540 side is the Re side.
- the rotation speed of the joining rotary tool F is set to be high, a burr V is generated on the Re side, that is, the auxiliary member 540 side. That is, in this embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 540 side.
- the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
- the auxiliary member is arranged on one side of the inner corner, but the auxiliary member may be arranged on both sides of the inner corner.
- auxiliary members on which burrs are formed are removed on both sides of the plasticized region. That is, in the removing step according to the present invention, the auxiliary member may be removed from at least one of the jacket main body 502 and the sealing body 503.
- the protrusion 512b is provided on the support 512, but the protrusion 512b may be omitted and the support 512 and the sealing body 503 may be joined.
- the liquid cooling jacket 501 is a rectangular parallelepiped in appearance, but may be a columnar body having a cylindrical shape in appearance and other polygonal sections, for example.
- a plurality of fins may be provided on the back surface of the sealing body 503. The heat exchange efficiency can be increased by forming the fins.
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Abstract
A joining method for joining a first metal member (1) and a second metal member (2) using a rotating tool for joining (F) provided with a stirring pin (F2) is characterized by including: an abutting step of causing the first metal member (1) and the second metal member (2) to abut against one another in substantially an L-shape or T-shape as seen in a cross section, to form an abutting portion (J1); a disposing step of disposing an auxiliary member (10) in an inner corner between the first metal member (1) and the second metal member (2), in such a way as to come into surface contact with the first metal member (1) or the second metal member (2); and a friction stirring step of inserting the rotating stirring pin (F2) into the inner corner, and with only the stirring pin (F2) in contact with the first metal member (1), the second metal member (2) and the auxiliary member (10), causing the rotating tool for joining (F) to move in a relative manner along the inner corner to join the first metal member (1), the second metal member (2) and the auxiliary member (10) to one another.
Description
本発明は、金属部材同士を摩擦攪拌で接合する接合方法及び液冷ジャケットの製造方法に関する。
The present invention relates to a joining method for joining metal members by friction stir and a manufacturing method for a liquid cooling jacket.
例えば、特許文献1には、第一金属部材と第二金属部材とを断面L字状に突き合わせて突合せ部を形成した後、内隅に回転ツールを挿入して突合せ部を摩擦攪拌接合する接合方法が記載されている。当該摩擦攪拌接合では、攪拌ピンのみを第一金属部材及び第二金属部材に接触させた状態で摩擦攪拌を行うというものである。
For example, in Patent Document 1, after joining a first metal member and a second metal member in an L-shaped cross section to form a butted portion, a rotating tool is inserted into the inner corner, and the butted portion is friction stir welded A method is described. In the friction stir welding, friction stirring is performed with only the stirring pin in contact with the first metal member and the second metal member.
また、例えば、特許文献2には、大きさが異なる第一金属部材と第二金属部材とを摩擦攪拌接合する接合方法が開示されている。当該接合方法では、第一金属部材と第二金属部材とを突き合わせる突合せ工程と、第一金属部材と第二金属部材との内隅に三角柱状の補助部材を配置する工程と、補助部材の上から回転ツールの攪拌ピンを挿入し、攪拌ピンのみを第一金属部材、第二金属部材及び補助部材に接触させた状態で突合せ部に対して摩擦攪拌を行うというものである。
Further, for example, Patent Document 2 discloses a joining method in which a first metal member and a second metal member having different sizes are subjected to friction stir welding. In the joining method, a butting step of abutting the first metal member and the second metal member, a step of arranging a triangular prism-shaped auxiliary member at the inner corner of the first metal member and the second metal member, The stirring pin of the rotary tool is inserted from above, and friction stirring is performed on the butt portion in a state where only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member.
また、パーソナルコンピュータに代表される電子機器は、その性能が向上するにつれて、搭載されるCPU(発熱体)の発熱量が増大しており、CPUの冷却が重要になっている。従来、CPUを冷却するために、空冷ファン方式のヒートシンクが使用されてきたが、ファン騒音や、空冷方式での冷却限界といった問題がクローズアップされるようになり、次世代冷却方式として、液冷ジャケットが注目されている。
In addition, as the performance of electronic devices typified by personal computers is improved, the amount of heat generated by a CPU (heating element) mounted on the electronic device increases, and cooling of the CPU is important. Conventionally, air-cooled fan type heat sinks have been used to cool CPUs, but problems such as fan noise and cooling limit in air-cooled systems have come to be highlighted. The jacket is drawing attention.
このような液冷ジャケットの製造方法として、金属製の構成部材同士を摩擦攪拌接合によって接合する技術が特許文献3で開示されている。従来の液冷ジャケットは、上方が開放された箱状のジャケット本体と、ジャケット本体の開口部を封止する板状の封止体とで構成されている。
As a method for manufacturing such a liquid cooling jacket, Patent Document 3 discloses a technique for joining metal components together by friction stir welding. A conventional liquid cooling jacket is composed of a box-shaped jacket body that is open at the top and a plate-shaped sealing body that seals the opening of the jacket body.
従来の液冷ジャケットの製造方法では、ジャケット本体の段差部に板厚の封止体を載置し、ジャケット本体と封止体とで構成された内隅から回転ツールの攪拌ピンを挿入し、回転ツールを封止体の周囲に一周させるというものである。
In the conventional method for manufacturing a liquid cooling jacket, a plate-shaped sealing body is placed on the stepped portion of the jacket body, and a stirring pin of a rotating tool is inserted from an inner corner formed by the jacket body and the sealing body, The rotating tool is rotated around the sealing body.
特許文献1の接合方法であると、塑性流動化した金属をショルダ部で押さえないため、塑性流動化した金属が外部に溢れ出し接合部が金属不足になるという問題がある。
In the joining method of Patent Document 1, since the plastic fluidized metal is not pressed by the shoulder portion, there is a problem that the plastic fluidized metal overflows to the outside and the joint becomes insufficient.
また、特許文献2の接合方法であると、内隅に補助部材を配置し、攪拌ピンを第一金属部材、第二金属部材及び補助部材に接触させた状態で突合せ部に対して摩擦攪拌を行うため、接合部(内隅)が金属不足になるのを防ぐことができる。しかし、摩擦攪拌工程後に内隅にバリが多く発生するため、バリを除去する作業が煩雑になるという問題がある。
In addition, in the joining method of Patent Document 2, an auxiliary member is disposed in the inner corner, and friction agitation is performed on the butt portion in a state where the agitation pin is in contact with the first metal member, the second metal member, and the auxiliary member. Since it does, it can prevent that a junction part (inner corner) becomes metal shortage. However, since many burrs are generated in the inner corner after the friction stirring step, there is a problem that the operation of removing the burrs becomes complicated.
また、特許文献3の液冷ジャケットの製造方法では、攪拌ピンのみを内隅に挿入した状態で摩擦攪拌を行うため、塑性流動材が外部に溢れ出し、接合部が金属不足になるおそれがある。また、回転ツールのショルダ部で金属を押さえないためバリが多く発生し、バリを除去する工程が煩雑になるという問題がある。
Further, in the method for manufacturing a liquid cooling jacket disclosed in Patent Document 3, since frictional stirring is performed with only the stirring pin inserted in the inner corner, the plastic fluid material may overflow to the outside and the joint may become insufficient in metal. . Further, since the metal is not pressed by the shoulder portion of the rotary tool, a lot of burrs are generated, and there is a problem that the process of removing the burrs becomes complicated.
そこで、本発明は、接合部の金属不足を防ぐことができる接合方法を提供することを課題とする。また、本発明は、接合部が金属不足になるのを防ぐとともに、バリを容易に除去することができる接合方法を提供することを課題とする。さらに、本発明は、接合部の金属不足を防ぐとともにバリを容易に除去することができる液冷ジャケットの製造方法を提供することを課題とする。
Therefore, an object of the present invention is to provide a joining method that can prevent metal shortage at the joint. It is another object of the present invention to provide a joining method that can prevent the burrs from being easily removed while preventing the joining portion from becoming insufficient in metal. Furthermore, this invention makes it a subject to provide the manufacturing method of the liquid cooling jacket which can remove a burr | flash easily while preventing the metal shortage of a junction part.
前記課題を解決するために、本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材と前記第二金属部材とを断面略L字状又は略T字状に突き合わせて突合せ部を形成する突合せ工程と、前記第一金属部材と前記第二金属部材との内隅において、前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、回転する前記攪拌ピンを前記内隅に挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記内隅に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする。
また、本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材と前記第二金属部材とを断面略L字状又は略T字状に突き合わせて突合せ部を形成する突合せ工程と、前記第一金属部材と前記第二金属部材との内隅において、前記第一金属部材及び前記第二金属部材に面接触するように断面略L字状の補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の内隅に挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記内隅に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする。 In order to solve the above problems, the present invention provides a joining method for joining a first metal member and a second metal member using a rotary tool having a stirring pin, the first metal member and the second metal member. A butting step of butting a metal member in a substantially L-shaped or substantially T-shaped cross section to form a butting portion; and in the inner corner of the first metal member and the second metal member, the first metal member or the An arrangement step of arranging an auxiliary member so as to be in surface contact with the second metal member, and the rotating stirring pin is inserted into the inner corner, and only the stirring pin is inserted into the first metal member, the second metal member, and the A friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the auxiliary member. And
In addition, the present invention is a joining method for joining a first metal member and a second metal member using a rotary tool provided with a stirring pin, wherein the first metal member and the second metal member are substantially cut in cross section. A butting step of butting in an L shape or a substantially T shape to form a butting portion, and an inner corner of the first metal member and the second metal member, the first metal member and the second metal member facing each other An arrangement step of arranging an auxiliary member having a substantially L-shaped cross section so as to come into contact with the rotating stirring pin is inserted into an inner corner of the auxiliary member, and only the stirring pin is used for the first metal member and the second metal. A friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the member and the auxiliary member. It is characterized by that.
また、本発明は、攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、前記第一金属部材と前記第二金属部材とを断面略L字状又は略T字状に突き合わせて突合せ部を形成する突合せ工程と、前記第一金属部材と前記第二金属部材との内隅において、前記第一金属部材及び前記第二金属部材に面接触するように断面略L字状の補助部材を配置する配置工程と、回転する前記攪拌ピンを前記補助部材の内隅に挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記内隅に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする。 In order to solve the above problems, the present invention provides a joining method for joining a first metal member and a second metal member using a rotary tool having a stirring pin, the first metal member and the second metal member. A butting step of butting a metal member in a substantially L-shaped or substantially T-shaped cross section to form a butting portion; and in the inner corner of the first metal member and the second metal member, the first metal member or the An arrangement step of arranging an auxiliary member so as to be in surface contact with the second metal member, and the rotating stirring pin is inserted into the inner corner, and only the stirring pin is inserted into the first metal member, the second metal member, and the A friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the auxiliary member. And
In addition, the present invention is a joining method for joining a first metal member and a second metal member using a rotary tool provided with a stirring pin, wherein the first metal member and the second metal member are substantially cut in cross section. A butting step of butting in an L shape or a substantially T shape to form a butting portion, and an inner corner of the first metal member and the second metal member, the first metal member and the second metal member facing each other An arrangement step of arranging an auxiliary member having a substantially L-shaped cross section so as to come into contact with the rotating stirring pin is inserted into an inner corner of the auxiliary member, and only the stirring pin is used for the first metal member and the second metal. A friction stir process for joining the first metal member, the second metal member, and the auxiliary member by relatively moving the rotary tool along the inner corner in a state of being in contact with the member and the auxiliary member. It is characterized by that.
かかる接合方法によれば、第一金属部材と第二金属部材とが接合されるとともに、第一金属部材及び第二金属部材に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。
According to this joining method, the first metal member and the second metal member are joined, and in addition to the first metal member and the second metal member, the auxiliary member is also simultaneously friction stir welded, whereby Shortage can be prevented.
また、バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことが好ましい。また、前記摩擦攪拌工程によって分断されるとともにバリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程と、を含むことが好ましい。
Further, it is preferable to include a removing step of removing the auxiliary member on which the burr is formed from the first metal member or the second metal member. In addition, it is preferable to include a removing step of removing the auxiliary member, which is divided by the friction stirring step and has a burr formed thereon, from the first metal member and the second metal member.
かかる接合方法によれば、バリが形成された補助部材ごと除去できるのでバリを容易に除去することができる。
According to such a joining method, since the auxiliary member on which the burr is formed can be removed, the burr can be easily removed.
また、前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように、接合条件を設定することが好ましい。
In the friction stir step, it is preferable to set the joining conditions so that burrs generated in the friction stir welding are formed on the auxiliary member.
かかる接合方法によれば、バリを補助部材に集約できるので、バリを除去する作業をより容易に行うことができる。
According to such a joining method, since the burrs can be concentrated on the auxiliary member, the work of removing the burrs can be performed more easily.
また、前記課題を解決するために、本発明は、攪拌ピンを備えた回転ツールを用いて、突き合わされる面の形状が互いに異なる二つの金属部材を接合する接合方法であって、一方の前記金属部材と他方の前記金属部材とを突き合わせて突合せ部を形成する突合せ工程と、他方の前記金属部材の周方向に亘って、前記金属部材同士の内隅に補助部材を配置する配置工程と、回転した前記攪拌ピンを前記内隅に挿入し、前記攪拌ピンのみを前記金属部材同士及び前記補助部材に接触させた状態で、他方の前記金属部材の周方向に亘って前記突合せ部の摩擦攪拌を行う摩擦攪拌工程と、前記補助部材を一方の前記金属部材及び他方の前記金属部材の少なくとも一方から除去する除去工程と、を含むことを特徴とする。
Further, in order to solve the above-mentioned problem, the present invention is a joining method for joining two metal members having different shapes of surfaces to be abutted using a rotary tool provided with a stirring pin, A butting step of butting the metal member and the other metal member to form a butting portion; and an arrangement step of placing an auxiliary member at the inner corner of the metal members over the circumferential direction of the other metal member; The rotated stirring pin is inserted into the inner corner, and only the stirring pin is in contact with the metal members and the auxiliary member, and the friction stir of the butted portion is performed over the circumferential direction of the other metal member. And a removing step of removing the auxiliary member from at least one of the one metal member and the other metal member.
かかる接合方法によれば、金属部材同士に加え、補助部材も同時に摩擦攪拌接合することにより、接合部の金属不足を防ぐことができる。また、除去工程によって、補助部材ごとバリを除去することができるため、バリを容易に除去することができる。
According to such a joining method, in addition to the metal members, the auxiliary member is also friction stir welded at the same time, so that a metal shortage at the joint can be prevented. Further, since the burrs can be removed together with the auxiliary member by the removing step, the burrs can be easily removed.
また、前記摩擦攪拌工程では、摩擦攪拌で発生するバリが前記補助部材に形成されるように、接合条件を設定することが好ましい。かかる接合方法によれば、バリが補助部材に集約されるため、バリをより容易に除去することができる。
In the friction stirring step, it is preferable to set the joining conditions so that burrs generated by friction stirring are formed on the auxiliary member. According to such a joining method, since the burrs are collected on the auxiliary member, the burrs can be removed more easily.
また、前記金属部材は、いずれも板状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の前記金属部材の裏面とを突き合わせることが好ましい。
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、円柱状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、筒状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、円筒状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材に貫通孔が形成されており、前記突合せ工程では、前記貫通孔を他方の前記金属部材で覆うことが好ましい。
また、一方の前記金属部材に貫通孔が形成されており、前記突合せ工程では、前記貫通孔と他方の前記金属部材の中空部とを連通させることが好ましい。 Moreover, all the said metal members are plate-shaped, and it is preferable to abut | match the surface of one said metal member, and the back surface of the other said metal member in the said butt | matching process.
Further, one of the metal members has a plate shape, and the other metal member has a columnar shape, and in the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
In addition, one of the metal members has a plate shape, and the other metal member has a cylindrical shape. In the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
In addition, one of the metal members has a plate shape, and the other metal member has a cylindrical shape. In the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
Further, it is preferable that a through hole is formed in one of the metal members, and the through hole is covered with the other metal member in the butting step.
Further, it is preferable that a through hole is formed in one of the metal members, and the through hole and the hollow portion of the other metal member are communicated with each other in the butting step.
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、円柱状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、筒状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材は、板状を呈し、他方の前記金属部材は、円筒状を呈し、前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることが好ましい。
また、一方の前記金属部材に貫通孔が形成されており、前記突合せ工程では、前記貫通孔を他方の前記金属部材で覆うことが好ましい。
また、一方の前記金属部材に貫通孔が形成されており、前記突合せ工程では、前記貫通孔と他方の前記金属部材の中空部とを連通させることが好ましい。 Moreover, all the said metal members are plate-shaped, and it is preferable to abut | match the surface of one said metal member, and the back surface of the other said metal member in the said butt | matching process.
Further, one of the metal members has a plate shape, and the other metal member has a columnar shape, and in the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
In addition, one of the metal members has a plate shape, and the other metal member has a cylindrical shape. In the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
In addition, one of the metal members has a plate shape, and the other metal member has a cylindrical shape. In the butting step, the surface of one of the metal members and the end surface of the other metal member are butted. Is preferred.
Further, it is preferable that a through hole is formed in one of the metal members, and the through hole is covered with the other metal member in the butting step.
Further, it is preferable that a through hole is formed in one of the metal members, and the through hole and the hollow portion of the other metal member are communicated with each other in the butting step.
かかる接合方法によれば、様々な形状の金属部材同士を接合することができる。
According to such a joining method, metal members having various shapes can be joined together.
前記課題を解決するために、本発明は、熱輸送流体が流れる凹部を有するジャケット本体と、前記凹部の開口部を封止する封止体とで構成される液冷ジャケットの製造方法であって、前記封止体を準備するとともに、底部と前記底部の周縁から立ち上る枠状の周壁部とを有し、前記周壁部の端面よりも一段下がった位置に形成された段差底面と、前記段差底面から立ち上る段差側面とを備えた前記ジャケット本体を準備する準備工程と、前記段差側面の高さ寸法よりも大きい厚さ寸法の前記封止体を前記段差底面に載置して、前記段差側面と前記封止体の側面とが突き合わされた突合せ部を形成する突合せ工程と、前記周壁部の端面と前記封止体の側面とで構成された内隅に補助部材を配置する配置工程と、前記内隅に攪拌ピンを備えた回転ツールを挿入し、前記攪拌ピンのみを前記ジャケット本体、前記封止体及び前記補助部材に接触させた状態で前記突合せ部に摩擦攪拌を行う摩擦攪拌工程と、バリが形成された前記補助部材を前記ジャケット本体及び前記封止体の少なくとも一方から除去する除去工程と、を含み、前記摩擦攪拌工程では、前記内隅に沿って前記回転ツールを前記封止体の回りに一周させて前記突合せ部を接合することを特徴とする。
In order to solve the above-mentioned problem, the present invention is a method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows and a sealing body that seals the opening of the recess. A step bottom surface having a bottom portion and a frame-shaped peripheral wall portion rising from a peripheral edge of the bottom portion, the step bottom surface formed at a position one step lower than an end surface of the peripheral wall portion, and the step bottom surface A step of preparing the jacket body including a step side surface rising from the step side, placing the sealing body having a thickness larger than the height dimension of the step side surface on the step bottom surface, A butting step of forming a butting portion in which the side surface of the sealing body is butted, a disposing step of disposing an auxiliary member at an inner corner formed by an end surface of the peripheral wall portion and a side surface of the sealing body, Time with a stirring pin in the inner corner A friction stirring step of inserting a tool and stirring the butt portion in a state where only the stirring pin is in contact with the jacket body, the sealing body and the auxiliary member, and the auxiliary member on which a burr is formed. Removing from at least one of the jacket body and the sealing body, and in the friction stirring step, the rotating tool is caused to make a round around the sealing body along the inner corner, and the butt portion It is characterized by joining.
かかる製造方法によれば、内隅に補助部材を配置して、ジャケット本体と封止体に加え補助部材も同時に摩擦攪拌することにより接合部の金属不足を防ぐことができる。また、除去工程によって、バリを補助部材ごと除去することができるため、バリを容易に除去することができる。
According to such a manufacturing method, an auxiliary member is disposed in the inner corner, and the auxiliary member in addition to the jacket main body and the sealing body is frictionally stirred at the same time, thereby preventing metal shortage at the joint. Further, since the burr can be removed together with the auxiliary member by the removing step, the burr can be easily removed.
また、前記摩擦攪拌工程では、前記バリが前記補助部材に発生するように接合条件を設定することが好ましい。かかる製造方法によれば、バリをより容易に除去することができる。
Further, in the friction stirring step, it is preferable to set a joining condition so that the burr is generated in the auxiliary member. According to this manufacturing method, burrs can be removed more easily.
また、前記摩擦攪拌工程では、前記回転ツールの回転中心軸を外側に傾斜させた状態で摩擦攪拌を行うことが好ましい。かかる製造方法によれば、回転ツールを内隅に容易に挿入することができる。
Further, in the friction stirring step, it is preferable to perform the friction stirring in a state where the rotation center axis of the rotary tool is inclined outward. According to this manufacturing method, the rotary tool can be easily inserted into the inner corner.
また、前記準備工程では、前記底部に前記段差底面と面一の端面を備えた支持部及び前記支持部から突出する突出部を形成するとともに、前記封止体の裏面に凹溝を形成し、前記突合せ工程では、前記凹溝に前記突出部を挿入しつつ前記封止体を載置し、前記摩擦攪拌工程では、前記突出部と前記凹溝とが嵌め合わされた嵌合部に対して前記回転ツールの攪拌ピンのみを、前記封止体のみ、又は、前記突出部及び前記封止体に接触させた状態で摩擦攪拌を行うことが好ましい。
Further, in the preparation step, a support portion provided with an end surface flush with the step bottom surface and a protruding portion protruding from the support portion are formed on the bottom portion, and a concave groove is formed on the back surface of the sealing body, In the butting step, the sealing body is placed while inserting the protruding portion into the concave groove, and in the friction stirring step, the fitting portion in which the protruding portion and the concave groove are fitted to each other. Friction stirring is preferably performed in a state where only the stirring pin of the rotary tool is in contact with only the sealing body or with the protruding portion and the sealing body.
かかる製造方法によれば、封止体を支持部で支持するとともに、支持部と封止体も摩擦攪拌接合するため、液冷ジャケットの強度を高めることができる。また、凹溝に突出部を挿入することにより封止体の位置決め作業を容易に行うことができる。
According to this manufacturing method, since the sealing body is supported by the support portion and the support portion and the sealing body are also friction stir welded, the strength of the liquid cooling jacket can be increased. Moreover, the positioning work of the sealing body can be easily performed by inserting the protruding portion into the concave groove.
また、前記支持部は、前記周壁部から延設されており、前記摩擦攪拌工程では、前記嵌合部の摩擦攪拌を行った後、そのまま前記周壁部まで移動させ、前記周壁部の上で前記回転ツールを離脱させることが好ましい。
Further, the support portion extends from the peripheral wall portion, and in the friction stirring step, after the friction stir of the fitting portion, the support portion is moved as it is to the peripheral wall portion, and the It is preferable to release the rotating tool.
かかる製造方法によれば、ジャケット本体の凹部から離れた位置に攪拌ピンの抜き穴が形成されることになるため、液冷ジャケットの水密性及び気密性を高めることができる。
According to this manufacturing method, since the hole for the stirring pin is formed at a position away from the concave portion of the jacket body, the water-tightness and air-tightness of the liquid-cooled jacket can be improved.
前記課題を解決するために、本発明は、熱輸送流体が流れる凹部を有するジャケット本体と、前記凹部の開口部を封止する封止体とで構成される液冷ジャケットの製造方法であって、底部及び前記底部の周縁から立ち上る枠状の周壁部を有する前記ジャケット本体と、前記封止体とを準備する準備工程と、前記周壁部の端面と前記封止体の裏面とを重ね合わせて重合部を形成する重合工程と、前記周壁部の端面と前記封止体の側面とで構成された内隅に補助部材を配置する配置工程と、前記内隅に攪拌ピンを備えた回転ツールを挿入し、前記攪拌ピンのみを前記ジャケット本体、前記封止体及び前記補助部材に接触させた状態で前記重合部に摩擦攪拌を行う摩擦攪拌工程と、バリが形成された前記補助部材を前記ジャケット本体及び前記封止体の少なくとも一方から除去する除去工程と、を含み、前記摩擦攪拌工程では、前記内隅に沿って前記回転ツールを前記封止体の回りに一周させて前記重合部を接合することを特徴とする。
In order to solve the above-mentioned problem, the present invention is a method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows and a sealing body that seals the opening of the recess. The preparation step of preparing the jacket body having the bottom and the frame-shaped peripheral wall portion rising from the peripheral edge of the bottom portion, and the sealing body, and the end surface of the peripheral wall portion and the back surface of the sealing body are overlapped A superposition step of forming a superposition part, an arrangement step of arranging an auxiliary member in an inner corner constituted by an end face of the peripheral wall portion and a side surface of the sealing body, and a rotary tool provided with a stirring pin in the inner corner A friction stirring step of inserting and stirring the overlapping portion with only the stirring pin in contact with the jacket body, the sealing body and the auxiliary member; and the auxiliary member having a burr formed therein. Body and said seal Removing from at least one of the bodies, and in the friction stir step, the rotation tool is made to make a round around the sealing body along the inner corner, and the overlapping portion is joined. To do.
かかる製造方法によれば、内隅に補助部材を配置して、ジャケット本体と封止体に加え補助部材も同時に摩擦攪拌することにより接合部の金属不足を防ぐことができる。また、除去工程によって、補助部材ごとバリを除去することができるため、バリを容易に除去することができる。
According to such a manufacturing method, an auxiliary member is disposed in the inner corner, and the auxiliary member in addition to the jacket main body and the sealing body is frictionally stirred at the same time, thereby preventing metal shortage at the joint. Further, since the burrs can be removed together with the auxiliary member by the removing step, the burrs can be easily removed.
また、前記摩擦攪拌工程では、前記バリが前記補助部材に発生するように接合条件を設定することが好ましい。かかる製造方法によれば、バリをより容易に除去することができる。
Further, in the friction stirring step, it is preferable to set a joining condition so that the burr is generated in the auxiliary member. According to this manufacturing method, burrs can be removed more easily.
また、前記摩擦攪拌工程では、前記回転ツールの回転中心軸を外側に傾斜させた状態で摩擦攪拌を行うことが好ましい。かかる製造方法によれば、回転ツールを内隅に容易に挿入することができる。
Further, in the friction stirring step, it is preferable to perform the friction stirring in a state where the rotation center axis of the rotary tool is inclined outward. According to this manufacturing method, the rotary tool can be easily inserted into the inner corner.
また、前記準備工程では、前記底部に、前記周壁部の端面と面一の端面を備えた支持部を立設するとともに、当該支持部の端面に突出部を形成し、前記封止体の裏面に凹溝を形成し、前記重合工程では、前記凹溝に前記突出部を挿入しつつ、前記周壁部の端面及び前記支持部の端面を覆うように前記封止体を載置し、前記摩擦攪拌工程では、前記凹溝と前記突出部とが嵌め合わされた嵌合部に対して、前記回転ツールを前記封止体のみ、又は、前記封止体及び前記突出部に接触させた状態で摩擦攪拌することが好ましい。
Further, in the preparation step, a support portion provided with an end surface flush with the end surface of the peripheral wall portion is erected on the bottom portion, and a protruding portion is formed on the end surface of the support portion. In the polymerization step, the sealing body is placed so as to cover the end surface of the peripheral wall portion and the end surface of the support portion while inserting the protruding portion into the concave groove. In the agitation step, the rotating tool is rubbed against the fitting portion in which the concave groove and the protruding portion are fitted to each other, or in a state where the rotating tool is in contact with only the sealing body or the sealing body and the protruding portion. It is preferable to stir.
かかる製造方法によれば、封止体を支持部で支持するとともに、支持部と封止体も摩擦攪拌接合するため、液冷ジャケットの強度を高めることができる。また、凹溝に突出部を挿入することにより封止体の位置決め作業を容易に行うことができる。
According to this manufacturing method, since the sealing body is supported by the support portion and the support portion and the sealing body are also friction stir welded, the strength of the liquid cooling jacket can be increased. Moreover, the positioning work of the sealing body can be easily performed by inserting the protruding portion into the concave groove.
また、前記摩擦攪拌工程では、前記回転ツールの攪拌ピンを前記突出部に沿って一周以上相対移動させた後、前記回転ツールを前記封止体から離脱させることが好ましい。
In the friction stirring step, it is preferable that the rotating tool is moved away from the sealing body after the stirring pin of the rotating tool is relatively moved along the projecting portion for one or more rounds.
かかる製造方法によれば、接合強度を高めることができるとともに、水密性及び気密性を高めることができる。
According to such a manufacturing method, the bonding strength can be increased, and the water tightness and the air tightness can be improved.
本発明に係る接合方法によれば、接合部の金属不足を防ぐことができる。また、本発明に係る接合方法によれば、接合部が金属不足になるのを防ぐとともに、バリを容易に除去することができる。また、本発明に係る液冷ジャケットの製造方法によれば、接合部の金属不足を防ぐことができるとともにバリを容易に除去することができる。
According to the joining method according to the present invention, metal shortage at the joint can be prevented. Further, according to the joining method according to the present invention, it is possible to prevent the burrs from being easily removed while preventing the joining portion from becoming a metal shortage. Moreover, according to the manufacturing method of the liquid cooling jacket which concerns on this invention, the metal shortage of a junction part can be prevented and a burr | flash can be removed easily.
[第一実施形態]
本発明の第一実施形態に係る接合方法について図面を参照して詳細に説明する。本実施形態に係る接合方法では、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。なお、以下の説明における「表面」とは、「裏面」の反対側の面という意味である。 [First embodiment]
A joining method according to a first embodiment of the present invention will be described in detail with reference to the drawings. In the joining method according to the present embodiment, a butt process, an arrangement process, a friction stirring process, and a removal process are performed. In the following description, “front surface” means a surface opposite to the “back surface”.
本発明の第一実施形態に係る接合方法について図面を参照して詳細に説明する。本実施形態に係る接合方法では、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。なお、以下の説明における「表面」とは、「裏面」の反対側の面という意味である。 [First embodiment]
A joining method according to a first embodiment of the present invention will be described in detail with reference to the drawings. In the joining method according to the present embodiment, a butt process, an arrangement process, a friction stirring process, and a removal process are performed. In the following description, “front surface” means a surface opposite to the “back surface”.
突合せ工程は、図1に示すように第一金属部材1と第二金属部材2とを断面略L字状に突き合わせる工程である。第一金属部材1及び第二金属部材2は、金属製の板状部材である。第一金属部材1及び第二金属部材2の材料は、摩擦攪拌可能な金属であれば特に制限されないが、例えば、アルミニウム、アルミニウム合金、銅、銅合金、チタン、チタン合金、マグネシウム、マグネシウム合金等から適宜選択すればよい。第一金属部材1及び第二金属部材2の板厚は同等になっている。第一金属部材1及び第二金属部材2の板厚は適宜設定すればよい。
The butting process is a process in which the first metal member 1 and the second metal member 2 are butted in a substantially L-shaped cross section as shown in FIG. The first metal member 1 and the second metal member 2 are metal plate-like members. The material of the first metal member 1 and the second metal member 2 is not particularly limited as long as it is a metal that can be frictionally stirred. For example, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, etc. May be selected as appropriate. The plate | board thickness of the 1st metal member 1 and the 2nd metal member 2 is equivalent. The plate thicknesses of the first metal member 1 and the second metal member 2 may be set as appropriate.
突合せ工程では、第一金属部材1の端面1aと、第二金属部材2の側面2bとを突き合わせて突合せ部J1を形成する。第二金属部材2の端面2aと第一金属部材1の側面1cとは面一にする。なお、突合せ工程では、第一金属部材1の側面1bと第二金属部材2の端面2aとを突き合わせてもよい。
In the butting process, the end surface 1a of the first metal member 1 and the side surface 2b of the second metal member 2 are butted to form a butting portion J1. The end surface 2a of the second metal member 2 and the side surface 1c of the first metal member 1 are flush with each other. In the butting step, the side surface 1b of the first metal member 1 and the end surface 2a of the second metal member 2 may be butted.
配置工程は、第一金属部材1と第二金属部材2とで構成される内隅に補助部材10を配置する工程である。補助部材10は金属製の板状部材である。補助部材10は摩擦攪拌可能な金属であれば特に制限されないが、本実施形態では第一金属部材1及び第二金属部材2と同じ材料になっている。補助部材10の板厚は、後記する摩擦攪拌工程後の塑性化領域Wが金属不足にならないように適宜設定する。
The placement step is a step of placing the auxiliary member 10 at the inner corner formed by the first metal member 1 and the second metal member 2. The auxiliary member 10 is a metal plate member. The auxiliary member 10 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 10 is made of the same material as the first metal member 1 and the second metal member 2. The plate | board thickness of the auxiliary member 10 is suitably set so that the plasticization area | region W after the friction stirring process mentioned later may not become metal shortage.
配置工程では、補助部材10の端面10aと第一金属部材1の側面1bとを当接させるとともに、補助部材10の側面10cと第二金属部材2の側面2bとを面接触させる。これにより、補助部材10を安定して配置することができる。また、第一金属部材1、第二金属部材2及び補助部材10を治具(図示省略)を用いて移動不能に拘束する。なお、補助部材10は本実施形態では板状としているが、他の形状であってもよい。
In the arranging step, the end surface 10a of the auxiliary member 10 and the side surface 1b of the first metal member 1 are brought into contact with each other, and the side surface 10c of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into surface contact. Thereby, auxiliary member 10 can be arranged stably. Moreover, the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 10 are restrained immovably using a jig | tool (illustration omitted). In addition, although the auxiliary member 10 is plate-shaped in this embodiment, another shape may be sufficient.
摩擦攪拌工程は、図2に示すように、接合用回転ツールFを用いて第一金属部材1と第二金属部材2との突合せ部J1を摩擦攪拌によって接合する工程である。接合用回転ツールFは、連結部F1と、攪拌ピンF2とで構成されている。接合用回転ツールFは、特許請求の範囲の「回転ツール」に相当する。接合用回転ツールFは、例えば工具鋼で形成されている。連結部F1は、摩擦攪拌装置の回転軸(図示省略)に連結される部位である。連結部F1は円柱状を呈している。
The friction stirring step is a step of joining the butted portion J1 of the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for bonding as shown in FIG. The joining rotary tool F includes a connecting portion F1 and a stirring pin F2. The joining rotary tool F corresponds to a “rotary tool” in the claims. The joining rotary tool F is made of, for example, tool steel. The connecting part F1 is a part connected to a rotating shaft (not shown) of the friction stirrer. The connecting portion F1 has a cylindrical shape.
攪拌ピンF2は、連結部F1から垂下しており、連結部F1と同軸になっている。攪拌ピンF2は連結部F1から離間するにつれて先細りになっている。攪拌ピンF2の外周面には螺旋溝が刻設されている。本実施形態では、接合用回転ツールFを右回転させるため、螺旋溝は、基端から先端に向かうにつれて左回りに形成されている。言い換えると、螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て左回りに形成されている。
The stirring pin F2 hangs down from the connecting part F1, and is coaxial with the connecting part F1. The stirring pin F2 is tapered as it is separated from the connecting portion F1. A spiral groove is formed on the outer peripheral surface of the stirring pin F2. In the present embodiment, the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right. In other words, the spiral groove is formed counterclockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end.
なお、接合用回転ツールFを左回転させる場合は、螺旋溝を基端から先端に向かうにつれて右回りに形成することが好ましい。言い換えると、この場合の螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て右回りに形成されている。螺旋溝をこのように設定することで、摩擦攪拌の際に塑性流動化した金属が螺旋溝によって攪拌ピンF2の先端側に導かれる。これにより、被接合金属部材(第一金属部材1、第二金属部材2)の外部に溢れ出る金属の量を少なくすることができる。螺旋溝は省略してもよい。
In addition, when rotating the rotation tool F for joining counterclockwise, it is preferable to form a spiral groove clockwise as it goes to the front-end | tip from a base end. In other words, the spiral groove in this case is formed clockwise when viewed from above when the spiral groove is traced from the proximal end to the distal end. By setting the spiral groove in this way, the metal plastically fluidized during friction stirring is guided to the tip side of the stirring pin F2 by the spiral groove. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the 1st metal member 1, the 2nd metal member 2) can be decreased. The spiral groove may be omitted.
接合用回転ツールFは、マシニングセンタ等の摩擦攪拌装置に取り付けてもよいが、例えば、先端にスピンドルユニット等の回転駆動手段を備えたアームロボットに取り付けてもよい。アームロボットに接合用回転ツールFを取り付けることにより接合用回転ツールFの回転中心軸の挿入角度を容易に変更することができる。
The rotating tool F for joining may be attached to a friction stirrer such as a machining center, but may be attached to, for example, an arm robot having a rotation driving means such as a spindle unit at the tip. By attaching the welding rotary tool F to the arm robot, the insertion angle of the rotation center axis of the welding rotary tool F can be easily changed.
摩擦攪拌工程では、内隅に右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材1、第二金属部材2及び補助部材10と攪拌ピンF2のみとを接触させた状態で内隅に沿って接合用回転ツールFを相対移動させる。本実施形態では、接合用回転ツールFの進行方向左側に補助部材10が位置するように接合用回転ツールFの進行方向を設定する。接合用回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。例えば、接合用回転ツールFの進行方向左側に補助部材10を配置しつつ、接合用回転ツールFを左回転させてもよい。接合用回転ツールFの回転方向等の条件と補助部材10の好ましい位置関係については後記する。
In the friction stirring step, only the stirring pin F2 rotated to the right is inserted into the inner corner, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. And the rotation tool F for joining is relatively moved along an inner corner in the state which made the 1st metal member 1, the 2nd metal member 2, the auxiliary member 10, and only the stirring pin F2 contact. In the present embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 10 is positioned on the left side in the traveling direction of the joining rotary tool F. The rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate. For example, the joining rotary tool F may be rotated counterclockwise while the auxiliary member 10 is disposed on the left side in the traveling direction of the joining rotary tool F. The conditions such as the rotation direction of the bonding rotary tool F and the preferred positional relationship of the auxiliary member 10 will be described later.
攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部J1とを接触させつつ、第一金属部材1及び第二金属部材2の板厚等に応じて適宜設定すればよい。これにより突合せ部J1が摩擦攪拌接合される。接合用回転ツールFの移動軌跡には塑性化領域Wが形成される。
What is necessary is just to set the insertion depth of the stirring pin F2 suitably according to the plate | board thickness of the 1st metal member 1 and the 2nd metal member 2, etc., making the stirring pin F2 and the butt | matching part J1 contact. Thereby, the butt J1 is friction stir welded. A plasticized region W is formed on the movement locus of the welding rotary tool F.
摩擦攪拌工程における攪拌ピンF2の挿入角度は適宜設定すればよいが、本実施形態では第一金属部材1と接合用回転ツールFの回転中心軸との角度が約45°となるように設定している。なお、本実施形態の場合は、攪拌ピンF2の挿入角度が45~75°となるように設定してもよい。これにより、突合せ部J1の深い位置まで摩擦攪拌接合することができる。摩擦攪拌工程後は、図3に示すように、第一金属部材1の側面1bと補助部材10の端部にバリV,Vがそれぞれ形成される。
The insertion angle of the agitation pin F2 in the friction agitation process may be set as appropriate. In this embodiment, the angle between the first metal member 1 and the rotation center axis of the joining rotary tool F is set to about 45 °. ing. In the present embodiment, the insertion angle of the stirring pin F2 may be set to 45 to 75 °. Thereby, friction stir welding can be performed to a deep position of the butt portion J1. After the friction stirring step, burrs V and V are formed on the side surface 1b of the first metal member 1 and the end of the auxiliary member 10, respectively, as shown in FIG.
除去工程は、補助部材10を第二金属部材2から除去する工程である。除去工程では、補助部材10を第二金属部材2から離間する方向に折り曲げて第二金属部材2から除去する。また、第一金属部材1の側面1bに形成されたバリVを切削装置等を用いて除去する。これにより、図4に示すように第一金属部材1と第二金属部材2とが断面略L字状に接合される。
The removal step is a step of removing the auxiliary member 10 from the second metal member 2. In the removing step, the auxiliary member 10 is bent away from the second metal member 2 and removed from the second metal member 2. Moreover, the burr | flash V formed in the side surface 1b of the 1st metal member 1 is removed using a cutting device etc. Thereby, as shown in FIG. 4, the 1st metal member 1 and the 2nd metal member 2 are joined by cross-sectional substantially L shape.
以上説明した本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが断面略L字状に接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材10も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。また、本実施形態によれば、第一金属部材1及び第二金属部材2の両側ではなく、片側のみに補助部材10を配置するだけで金属不足を防ぐことができる。
According to the joining method according to the present embodiment described above, the first metal member 1 and the second metal member 2 are joined in a substantially L-shaped cross section, and the first metal member 1 and the second metal member 2 are joined. In addition, the auxiliary member 10 is also subjected to friction stir welding at the same time, so that a metal shortage at the joint (plasticized region W) can be prevented. Moreover, according to this embodiment, metal shortage can be prevented only by arrange | positioning the auxiliary member 10 only to one side instead of the both sides of the 1st metal member 1 and the 2nd metal member 2. FIG.
また、本実施形態によれば、摩擦攪拌工程によって補助部材10にバリVが形成されるが、除去工程において補助部材10ごと取り除くことができる。これにより、バリを除去する作業を容易に行うことができる。図3に示すように、摩擦攪拌工程後は補助部材10の端面が内隅に向かうにつれて板厚が薄くなるように傾斜している。補助部材10は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材10を取り除くことができる。
Further, according to the present embodiment, the burrs V are formed in the auxiliary member 10 by the friction stirring process, but it can be removed together with the auxiliary member 10 in the removing process. Thereby, the operation | work which removes a burr | flash can be performed easily. As shown in FIG. 3, after the friction stirring step, the end surface of the auxiliary member 10 is inclined so as to become thinner as it goes toward the inner corner. Although the auxiliary member 10 may use a removing device or the like, in this embodiment, the auxiliary member 10 can be easily removed manually.
ここで、本実施形態に係る摩擦攪拌工程では進行方向左側に補助部材10を配置するとともに接合用回転ツールFを右回転させるため、補助部材10側がAd側となる。Ad側(シアー側)とは、接合用回転ツールFの外周における接線速度の大きさから送り速度の大きさが加算される側である。一方、Ad側の反対側がRe側となる。Re側(フロー側)とは、接合用回転ツールFの外周における接線速度の大きさから送り速度の大きさが減算される側である。
Here, in the friction stirring process according to the present embodiment, the auxiliary member 10 is disposed on the left side in the traveling direction and the rotating tool F for rotation is rotated to the right, so the auxiliary member 10 side is the Ad side. The Ad side (shear side) is the side on which the magnitude of the feed speed is added from the magnitude of the tangential speed on the outer circumference of the welding rotary tool F. On the other hand, the side opposite to the Ad side is the Re side. The Re side (flow side) is a side on which the magnitude of the feed speed is subtracted from the magnitude of the tangential speed on the outer periphery of the welding rotary tool F.
本実施形態では塑性化領域WのRe側に比べてAd側の方が塑性流動材の温度が上昇しやすくなるため、Ad側にバリVが多く発生する傾向にある。本実施形態ではバリVが補助部材10側に多く形成されるように接合用回転ツールFの回転方向及び進行方向を設定している。これにより、補助部材10に形成されたバリVは、補助部材10ごと除去されるため、バリ除去工程をより容易に行うことができる。
In this embodiment, since the temperature of the plastic fluidized material is likely to increase on the Ad side as compared to the Re side of the plasticized region W, a large number of burrs V tend to be generated on the Ad side. In the present embodiment, the rotation direction and the traveling direction of the welding rotary tool F are set so that many burrs V are formed on the auxiliary member 10 side. Thereby, since the burr | flash V formed in the auxiliary member 10 is removed with the auxiliary member 10, the burr | flash removal process can be performed more easily.
なお、例えば、接合用回転ツールFの回転速度を速く設定した場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが発生する傾向にある。このような場合は、補助部材10をRe側(第一金属部材1側)に配置して摩擦攪拌工程を行ってもよい。摩擦攪拌工程の際に、接合用回転ツールFの進行方向のどちら側にバリVが発生するかは接合条件によって異なる。当該接合条件とは、接合用回転ツールFの回転速度、回転方向、進行方向、移動速度(送り速度)、攪拌ピンF2の傾斜角度(テーパー角度)、第一金属部材1、第二金属部材2及び補助部材10の材質、補助部材10の厚さ等の各要素とこれらの要素の組合せで決定される。接合条件に応じて、バリVが発生する側又はバリVが多く発生する側が、補助部材10側となるように設定すれば、除去工程を容易に行うことができるため好ましい。
For example, when the rotational speed of the rotating tool F for joining is set to be high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that burrs V are generated on the Re side due to the high rotational speed. . In such a case, the auxiliary member 10 may be disposed on the Re side (first metal member 1 side) to perform the friction stirring step. In the friction stirring step, which side of the traveling direction of the welding rotary tool F the burr V is generated differs depending on the joining conditions. The joining conditions include the rotational speed, rotational direction, traveling direction, moving speed (feed speed) of the rotating tool F for joining, the inclination angle (taper angle) of the stirring pin F2, the first metal member 1, and the second metal member 2. And the material of the auxiliary member 10, the thickness of the auxiliary member 10, etc., and the combination of these elements. It is preferable to set the side where the burrs V are generated or the side where the burrs V are generated to be the auxiliary member 10 side according to the joining conditions because the removal process can be easily performed.
[第一実施形態の変形例]
図5は、第一実施形態の変形例に係る摩擦攪拌工程を示す断面図である。当該変形例では、補助部材10の端面10aと第二金属部材2の側面2bとを当接させつつ、第一金属部材1の側面1bと補助部材10の側面10bとが面接触するように補助部材10を配置している。 [Modification of First Embodiment]
FIG. 5 is a cross-sectional view showing a friction stirring process according to a modification of the first embodiment. In the modification, theend surface 10a of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into contact with each other, and the side surface 1b of the first metal member 1 and the side surface 10b of the auxiliary member 10 are in surface contact. The member 10 is arranged.
図5は、第一実施形態の変形例に係る摩擦攪拌工程を示す断面図である。当該変形例では、補助部材10の端面10aと第二金属部材2の側面2bとを当接させつつ、第一金属部材1の側面1bと補助部材10の側面10bとが面接触するように補助部材10を配置している。 [Modification of First Embodiment]
FIG. 5 is a cross-sectional view showing a friction stirring process according to a modification of the first embodiment. In the modification, the
当該変形例に係る摩擦攪拌工程では、接合用回転ツールFを左回転させつつ接合用回転ツールFの進行方向右側に補助部材10が位置するように接合用回転ツールFの進行方向を設定する。これにより、当該変形例では補助部材10側がAd側となる。当該変形例によっても第一実施形態に係る接合方法と略同等の効果を奏することができる。
なお、この場合も、接合用回転ツールFの回転速度を速く設定した場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが発生する傾向にある。このような場合は、補助部材10をRe側(第二金属部材2側)に配置して摩擦攪拌工程を行ってもよい。 In the friction stirring step according to the modification, the traveling direction of the joining rotary tool F is set so that theauxiliary member 10 is positioned on the right side in the traveling direction of the joining rotary tool F while rotating the joining rotary tool F counterclockwise. Thereby, in the said modification, the auxiliary member 10 side turns into Ad side. The modification can also provide substantially the same effect as the bonding method according to the first embodiment.
In this case as well, when the rotational speed of the welding rotary tool F is set to be high, the temperature of the plastic fluidized material increases on the Ad side, but the burr V tends to occur on the Re side due to the higher rotational speed. It is in. In such a case, theauxiliary member 10 may be disposed on the Re side (second metal member 2 side) to perform the friction stirring step.
なお、この場合も、接合用回転ツールFの回転速度を速く設定した場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが発生する傾向にある。このような場合は、補助部材10をRe側(第二金属部材2側)に配置して摩擦攪拌工程を行ってもよい。 In the friction stirring step according to the modification, the traveling direction of the joining rotary tool F is set so that the
In this case as well, when the rotational speed of the welding rotary tool F is set to be high, the temperature of the plastic fluidized material increases on the Ad side, but the burr V tends to occur on the Re side due to the higher rotational speed. It is in. In such a case, the
[第二実施形態]
次に、第二実施形態に係る接合方法について説明する。第二実施形態に係る接合方法は、図6に示すように、断面L字状の補助部材20を用いる点で第一実施形態と相違する。第二実施形態に係る接合方法では、第一実施形態と相違する部分を中心に説明する。 [Second Embodiment]
Next, the joining method according to the second embodiment will be described. As shown in FIG. 6, the joining method according to the second embodiment is different from the first embodiment in that anauxiliary member 20 having an L-shaped cross section is used. The joining method according to the second embodiment will be described with a focus on the differences from the first embodiment.
次に、第二実施形態に係る接合方法について説明する。第二実施形態に係る接合方法は、図6に示すように、断面L字状の補助部材20を用いる点で第一実施形態と相違する。第二実施形態に係る接合方法では、第一実施形態と相違する部分を中心に説明する。 [Second Embodiment]
Next, the joining method according to the second embodiment will be described. As shown in FIG. 6, the joining method according to the second embodiment is different from the first embodiment in that an
本実施形態に係る接合方法は、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。突合工程は、第一実施形態と同じであるため説明を省略する。配置工程は、補助部材20を第一金属部材1と第二金属部材2の内隅に配置する工程である。
The joining method according to the present embodiment performs a butt process, an arrangement process, a friction stirring process, and a removal process. Since the matching process is the same as that of the first embodiment, description thereof is omitted. The arranging step is a step of arranging the auxiliary member 20 at the inner corners of the first metal member 1 and the second metal member 2.
配置工程は、図6に示すように、第一金属部材1と第二金属部材2とで構成される内隅に補助部材20を配置する工程である。補助部材20は金属製の断面L字状の部材である。補助部材20は摩擦攪拌可能な金属であれば特に制限されないが、本実施形態では第一金属部材1及び第二金属部材2と同じ材料になっている。補助部材20の板厚は、後記する摩擦攪拌工程後の塑性化領域Wが金属不足にならないように適宜設定する。
The placement step is a step of placing the auxiliary member 20 in the inner corner composed of the first metal member 1 and the second metal member 2 as shown in FIG. The auxiliary member 20 is a metal member having an L-shaped cross section. The auxiliary member 20 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 20 is made of the same material as the first metal member 1 and the second metal member 2. The plate | board thickness of the auxiliary member 20 is suitably set so that the plasticization area | region W after the friction stirring process mentioned later may not become metal shortage.
配置工程では、補助部材20の外面20c,20cと第一金属部材1の側面1b,第二金属部材2の側面2bとをそれぞれ面接触させる。また、第一金属部材1、第二金属部材2及び補助部材20を治具(図示省略)を用いて移動不能に拘束する。
In the arranging step, the outer surfaces 20c, 20c of the auxiliary member 20, the side surface 1b of the first metal member 1, and the side surface 2b of the second metal member 2 are brought into surface contact with each other. Moreover, the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 20 are restrained immovably using a jig | tool (illustration omitted).
摩擦攪拌工程は、図7に示すように、接合用回転ツールFを用いて第一金属部材1と第二金属部材2との突合せ部J1を摩擦攪拌によって接合する工程である。摩擦攪拌工程では、右回転させた攪拌ピンF2を補助部材20の内隅(内面20b,20bの角部)から挿入し、突合せ部J1に達するように攪拌ピンF2の挿入深さを設定する。摩擦攪拌工程では、内隅に右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材1、第二金属部材2及び補助部材20と攪拌ピンF2とを接触させた状態で内隅に沿って接合用回転ツールFを相対移動させる。これにより突合せ部J1が摩擦攪拌接合される。接合用回転ツールFの移動軌跡には塑性化領域Wが形成される。
As shown in FIG. 7, the friction stirring step is a step of joining the butted portion J1 of the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for joining. In the friction stirring step, the stirring pin F2 rotated to the right is inserted from the inner corner of the auxiliary member 20 (the corners of the inner surfaces 20b and 20b), and the insertion depth of the stirring pin F2 is set so as to reach the abutting portion J1. In the friction stirring step, only the stirring pin F2 rotated to the right is inserted into the inner corner, and the bonded metal member and the connecting portion F1 are moved while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. And the rotation tool F for joining is relatively moved along an inner corner in the state which contacted the 1st metal member 1, the 2nd metal member 2, the auxiliary member 20, and the stirring pin F2. Thereby, the butt J1 is friction stir welded. A plasticized region W is formed on the movement locus of the welding rotary tool F.
除去工程は、図8に示すように、摩擦攪拌工程によって分断された補助部材20,20を第一金属部材1及び第二金属部材2から除去する工程である。除去工程では、補助部材20,20を第一金属部材1及び第二金属部材2から離間する方向にそれぞれ折り曲げて除去する。
The removing step is a step of removing the auxiliary members 20 and 20 separated by the friction stirring step from the first metal member 1 and the second metal member 2 as shown in FIG. In the removing step, the auxiliary members 20 and 20 are bent and removed in directions away from the first metal member 1 and the second metal member 2, respectively.
以上説明した本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが断面略L字状に接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材20も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。
According to the joining method according to the present embodiment described above, the first metal member 1 and the second metal member 2 are joined in a substantially L-shaped cross section, and the first metal member 1 and the second metal member 2 are joined. In addition, the auxiliary member 20 can also be friction stir welded at the same time to prevent metal shortage at the joint (plasticization region W).
また、本実施形態によれば、摩擦攪拌工程によって分断された補助部材20,20にそれぞれバリV,Vが形成されるが、除去工程において補助部材20ごと取り除くことができる。これにより、バリを除去する作業を容易に行うことができる。また、第二実施形態では分断された補助部材20,20が内隅の両側に形成されるため、バリを除去する作業がより容易となる。図8に示すように、摩擦攪拌工程後は補助部材20の端面が内隅に向かうにつれて板厚が薄くなるように傾斜している。補助部材20は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材20を取り除くことができる。
Further, according to the present embodiment, the burrs V and V are formed on the auxiliary members 20 and 20 divided by the friction stirring process, respectively. However, the auxiliary member 20 can be removed together in the removing process. Thereby, the operation | work which removes a burr | flash can be performed easily. In the second embodiment, the divided auxiliary members 20 and 20 are formed on both sides of the inner corner, so that the work of removing burrs becomes easier. As shown in FIG. 8, after the friction stirring step, the end surface of the auxiliary member 20 is inclined so that the plate thickness becomes thinner as it goes to the inner corner. Although the auxiliary member 20 may use a removing device or the like, in the present embodiment, the auxiliary member 20 can be easily removed manually.
[第三実施形態]
次に、本発明の第三実施形態に係る接合方法について説明する。図9に示すように、第三実施形態に係る接合方法は、第一金属部材1と第二金属部材2とを断面T字状に突き合わせる点で第一実施形態と相違する。第三実施形態に係る接合方法では、第一実施形態と相違する点を中心に説明する。第三実施形態に係る接合方法は、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Third embodiment]
Next, the joining method according to the third embodiment of the present invention will be described. As shown in FIG. 9, the joining method according to the third embodiment is different from the first embodiment in that thefirst metal member 1 and the second metal member 2 are butted in a T-shaped cross section. The joining method according to the third embodiment will be described with a focus on differences from the first embodiment. The joining method which concerns on 3rd embodiment performs a butt | matching process, an arrangement | positioning process, a friction stirring process, and a removal process.
次に、本発明の第三実施形態に係る接合方法について説明する。図9に示すように、第三実施形態に係る接合方法は、第一金属部材1と第二金属部材2とを断面T字状に突き合わせる点で第一実施形態と相違する。第三実施形態に係る接合方法では、第一実施形態と相違する点を中心に説明する。第三実施形態に係る接合方法は、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Third embodiment]
Next, the joining method according to the third embodiment of the present invention will be described. As shown in FIG. 9, the joining method according to the third embodiment is different from the first embodiment in that the
突合せ工程は、第一金属部材1と第二金属部材2とを断面T字状に突き合わせる工程である。突合せ工程では、第一金属部材1の側面1bと第二金属部材2の端面2aとを突き合わせて突合せ部J2を形成する。
The butting process is a process in which the first metal member 1 and the second metal member 2 are butted in a T-shaped cross section. In the butting step, the side surface 1b of the first metal member 1 and the end surface 2a of the second metal member 2 are butted to form a butting portion J2.
配置工程は、第一金属部材1と第二金属部材2とで構成され、第二金属部材2を挟んで両側に形成される内隅に補助部材10,10をそれぞれ配置する工程である。一方側の内隅では、補助部材10の側面10cと第二金属部材2の側面2bとを面接触させる。他方側の内隅では、補助部材10の側面10cと第一金属部材1の側面1bとを面接触させる。また、第一金属部材1、第二金属部材2及び補助部材10を治具(図示省略)を用いて移動不能に拘束する。
The arranging step is a step of arranging the auxiliary members 10 and 10 at inner corners formed on both sides with the second metal member 2 sandwiched between the first metal member 1 and the second metal member 2. At the inner corner on one side, the side surface 10c of the auxiliary member 10 and the side surface 2b of the second metal member 2 are brought into surface contact. In the inner corner on the other side, the side surface 10c of the auxiliary member 10 and the side surface 1b of the first metal member 1 are brought into surface contact. Moreover, the 1st metal member 1, the 2nd metal member 2, and the auxiliary member 10 are restrained immovably using a jig | tool (illustration omitted).
摩擦攪拌工程は、図9に示すように、接合用回転ツールFを用いて第一金属部材1と第二金属部材2との突合せ部J2を摩擦攪拌によって接合する工程である。摩擦攪拌工程は、第二金属部材2の両側に形成された内隅に対して第一実施形態に係る摩擦攪拌工程と同じ要領で摩擦攪拌を行う。これにより、突合せ部J2に沿って塑性化領域W,Wが形成される。
As shown in FIG. 9, the friction stirring step is a step of joining the abutting portion J <b> 2 between the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for joining. In the friction stirring step, friction stirring is performed on the inner corners formed on both sides of the second metal member 2 in the same manner as the friction stirring step according to the first embodiment. Thereby, the plasticization area | regions W and W are formed along the butt | matching part J2.
除去工程は、補助部材10,10を第一金属部材1及び第二金属部材2から除去する工程である。除去工程では、補助部材10を第一金属部材1又は第二金属部材2からそれぞれ離間する方向に折り曲げて第二金属部材2から除去する。また、第一金属部材1の側面1b又は第二金属部材2の側面2cに形成されたバリVを切削装置等を用いて除去する。以上により、第一金属部材1と第二金属部材2とが断面略T字状に接合される。
The removal step is a step of removing the auxiliary members 10 from the first metal member 1 and the second metal member 2. In the removing step, the auxiliary member 10 is bent from the first metal member 1 or the second metal member 2 and removed from the second metal member 2. Moreover, the burr | flash V formed in the side surface 1b of the 1st metal member 1 or the side surface 2c of the 2nd metal member 2 is removed using a cutting device etc. By the above, the 1st metal member 1 and the 2nd metal member 2 are joined by cross-sectional substantially T shape.
以上説明した本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが断面略T字状に接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材10も同時に摩擦攪拌接合することにより、各接合部(塑性化領域W)の金属不足を防ぐことができる。なお、摩擦攪拌工程においては、隣り合う塑性化領域W,Wが重複するように接合用回転ツールFの挿入深さ及び挿入角度を設定してもよい。塑性化領域W,Wが重複することにより、気密性及び水密性を高めることができる。
According to the joining method according to the present embodiment described above, the first metal member 1 and the second metal member 2 are joined in a substantially T-shaped cross section, and the first metal member 1 and the second metal member 2 are joined. In addition, the auxiliary member 10 is also subjected to friction stir welding at the same time, thereby preventing metal shortage at each joint (plasticization region W). In the friction stirring step, the insertion depth and insertion angle of the welding rotary tool F may be set so that the adjacent plasticized regions W, W overlap. By overlapping the plasticized regions W and W, airtightness and watertightness can be improved.
[第四実施形態]
次に、本発明の第四実施形態に係る接合方法について説明する。図10に示すように、第四実施形態に係る接合方法は、断面L字状の補助部材20,20を用いる点で第三実施形態と相違する。第四実施形態に係る接合方法では、第三実施形態と相違する点を中心に説明する。第四実施形態に係る接合方法は、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。突合せ工程は、第三実施形態と同じであるため説明を省略する。 [Fourth embodiment]
Next, the joining method according to the fourth embodiment of the present invention will be described. As shown in FIG. 10, the joining method according to the fourth embodiment is different from the third embodiment in that auxiliary members 20 and 20 having an L-shaped cross section are used. The joining method according to the fourth embodiment will be described with a focus on differences from the third embodiment. The joining method according to the fourth embodiment performs a butting process, an arranging process, a friction stirring process, and a removing process. Since the matching process is the same as that of the third embodiment, description thereof is omitted.
次に、本発明の第四実施形態に係る接合方法について説明する。図10に示すように、第四実施形態に係る接合方法は、断面L字状の補助部材20,20を用いる点で第三実施形態と相違する。第四実施形態に係る接合方法では、第三実施形態と相違する点を中心に説明する。第四実施形態に係る接合方法は、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。突合せ工程は、第三実施形態と同じであるため説明を省略する。 [Fourth embodiment]
Next, the joining method according to the fourth embodiment of the present invention will be described. As shown in FIG. 10, the joining method according to the fourth embodiment is different from the third embodiment in that
配置工程は、第一金属部材1と第二金属部材2とで構成され、第二金属部材2を挟んで両側に形成される内隅に補助部材20,20をそれぞれ配置する工程である。補助部材20は、金属製であって断面L字状を呈する。配置工程では、補助部材20の外面20c,20cを第一金属部材1の側面1b及び第二金属部材2の側面2b,2cにそれぞれ面接触させる。また、第一金属部材1、第二金属部材2及び補助部材20,20を治具(図示省略)を用いて移動不能に拘束する。
The placement step is a step of arranging the auxiliary members 20 and 20 at inner corners formed on both sides of the second metal member 2 with the second metal member 2 sandwiched between the first metal member 1 and the second metal member 2. The auxiliary member 20 is made of metal and has an L-shaped cross section. In the arrangement step, the outer surfaces 20c and 20c of the auxiliary member 20 are brought into surface contact with the side surface 1b of the first metal member 1 and the side surfaces 2b and 2c of the second metal member 2, respectively. Moreover, the 1st metal member 1, the 2nd metal member 2, and the auxiliary members 20 and 20 are restrained immovably using a jig | tool (illustration omitted).
摩擦攪拌工程は、図10に示すように、接合用回転ツールFを用いて第一金属部材1と第二金属部材2との突合せ部J2を摩擦攪拌によって接合する工程である。摩擦攪拌工程は、第二金属部材2の両側に形成された内隅に対して第二実施形態に係る摩擦攪拌工程と同じ要領で摩擦攪拌を行う。これにより、突合せ部J2に沿って塑性化領域W,Wが形成される。
As shown in FIG. 10, the friction stirring step is a step of joining the abutting portion J2 between the first metal member 1 and the second metal member 2 by friction stirring using the rotating tool F for bonding. In the friction stirring step, friction stirring is performed on the inner corners formed on both sides of the second metal member 2 in the same manner as the friction stirring step according to the second embodiment. Thereby, the plasticization area | regions W and W are formed along the butt | matching part J2.
除去工程は、摩擦攪拌工程で分断された補助部材20,20を第一金属部材1及び第二金属部材2から除去する工程である。除去工程では、分断された補助部材20,20を第一金属部材1及び第二金属部材2からそれぞれ離間する方向に折り曲げて除去する。
The removal step is a step of removing the auxiliary members 20 and 20 separated in the friction stirring step from the first metal member 1 and the second metal member 2. In the removing step, the divided auxiliary members 20 and 20 are bent and removed in directions away from the first metal member 1 and the second metal member 2.
以上説明した本実施形態に係る接合方法によれば、第一金属部材1と第二金属部材2とが断面略T字状に接合されるとともに、第一金属部材1及び第二金属部材2に加え、補助部材20も同時に摩擦攪拌接合することにより、各接合部(塑性化領域W)の金属不足を防ぐことができる。なお、摩擦攪拌工程においては、隣り合う塑性化領域W,Wが重複するように接合用回転ツールFの挿入深さ及び挿入角度を設定してもよい。
According to the joining method according to the present embodiment described above, the first metal member 1 and the second metal member 2 are joined in a substantially T-shaped cross section, and the first metal member 1 and the second metal member 2 are joined. In addition, the auxiliary member 20 is also subjected to friction stir welding at the same time, thereby preventing metal shortage at each joint (plasticized region W). In the friction stirring step, the insertion depth and insertion angle of the welding rotary tool F may be set so that the adjacent plasticized regions W, W overlap.
以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲において適宜設計変更が可能である。例えば、本実施形態では除去工程を行ったが、補助部材10,20を除去せずに、第一金属部材1又は第二金属部材2にそのまま存置してもよい。
Although the embodiment of the present invention has been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, although the removal process is performed in the present embodiment, the auxiliary members 10 and 20 may be left as they are in the first metal member 1 or the second metal member 2 without being removed.
また、突合せ工程では、第一金属部材1の端面1aと第二金属部材2の端面2aとを斜めにカットして両部材を突き合わせてもよい。
In the butting step, the end surface 1a of the first metal member 1 and the end surface 2a of the second metal member 2 may be cut obliquely so that both members are butted.
[第五実施形態]
本発明の第五実施形態に係る接合方法について図面を参照して詳細に説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。 [Fifth embodiment]
A joining method according to a fifth embodiment of the present invention will be described in detail with reference to the drawings. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
本発明の第五実施形態に係る接合方法について図面を参照して詳細に説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。 [Fifth embodiment]
A joining method according to a fifth embodiment of the present invention will be described in detail with reference to the drawings. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
準備工程は、図11に示すように、第一金属部材101、第二金属部材102及び補助部材110を用意する工程である。第一金属部材101及び第二金属部材102はいずれも直方体(板状)を呈する。第一金属部材101は、第二金属部材102よりも大きくなっている。特許請求の範囲の「突き合わされる面の形状が互いに異なる二つの金属部材」とは、金属部材同士の突き合わされる面の形状が異なる場合と、本実施形態のように第一金属部材101の表面101bと、第二金属部材102の裏面102cのように突き合わされる面の大きさが異なる場合(相似の場合)も含む意味である。
The preparation step is a step of preparing the first metal member 101, the second metal member 102, and the auxiliary member 110 as shown in FIG. Both the first metal member 101 and the second metal member 102 have a rectangular parallelepiped shape (plate shape). The first metal member 101 is larger than the second metal member 102. “Two metal members having different shapes of the surfaces to be faced” in the claims means that the shape of the surfaces to be faced of the metal members is different from that of the first metal member 101 as in this embodiment. This also includes the case where the surface 101b and the surface of the second metal member 102, such as the back surface 102c, have different sizes (similar cases).
第一金属部材101及び第二金属部材102の材料は、摩擦攪拌可能な金属であれば特に制限されないが、例えば、アルミニウム、アルミニウム合金、銅、銅合金、チタン、チタン合金、マグネシウム、マグネシウム合金等から適宜選択すればよい。
The material of the first metal member 101 and the second metal member 102 is not particularly limited as long as it is a metal that can be frictionally stirred. For example, aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, etc. May be selected as appropriate.
補助部材110は、中央に矩形の中空部111を備えた金属製の薄板の枠状部材である。補助部材110は、摩擦攪拌可能な金属であれば特に制限されないが、本実施形態では第一金属部材101及び第二金属部材102と同じ材料になっている。補助部材110の一部には幅方向に亘って連続するスリット110dが形成されている。
The auxiliary member 110 is a metal thin plate-like frame member having a rectangular hollow portion 111 at the center. The auxiliary member 110 is not particularly limited as long as it is a metal capable of friction stirring, but in the present embodiment, the auxiliary member 110 is made of the same material as the first metal member 101 and the second metal member 102. A slit 110d that extends continuously in the width direction is formed in a part of the auxiliary member 110.
突合せ工程は、第一金属部材101と第二金属部材102を突き合わせる工程である。突合せ工程では、第一金属部材101の表面101bの中央部と、第二金属部材102の裏面102cとを突き合わせる。これにより、突合せ部J11が形成される。また、第一金属部材101の表面101bと第二金属部材102の4つの側面102dとで内隅が形成される。さらに、第一金属部材101の表面101bには、第二金属部材102で覆われない枠状の露出部が形成される。
The butting process is a process in which the first metal member 101 and the second metal member 102 are butted together. In the butting process, the center portion of the front surface 101b of the first metal member 101 and the back surface 102c of the second metal member 102 are butted. Thereby, the butt | matching part J11 is formed. In addition, an inner corner is formed by the surface 101 b of the first metal member 101 and the four side surfaces 102 d of the second metal member 102. Further, a frame-shaped exposed portion that is not covered with the second metal member 102 is formed on the surface 101 b of the first metal member 101.
配置工程は、図12に示すように、内隅に補助部材110を配置する工程である。配置工程では、補助部材110の中空部111に第二金属部材102を挿通させ、第一金属部材101の表面101bに補助部材110を配置する。補助部材110の平面形状は、第一金属部材101の露出部と同じ形状になっている。つまり、第二金属部材102に補助部材110の中空部111を通すと第一金属部材101の表面101bの露出部に隙間なく配置される。補助部材110の内周縁は、第二金属部材102の側面102dに接触するか、若しくは側面102dと微細な隙間をあけて対向する。補助部材110の板厚は、後記する摩擦攪拌工程後の塑性化領域Wが金属不足にならない程度に適宜設定する。また、第一金属部材101、第二金属部材102及び補助部材110を治具(図示省略)を用いて架台に移動不能に拘束する。
The placement step is a step of placing the auxiliary member 110 in the inner corner as shown in FIG. In the arranging step, the second metal member 102 is inserted through the hollow portion 111 of the auxiliary member 110, and the auxiliary member 110 is arranged on the surface 101 b of the first metal member 101. The planar shape of the auxiliary member 110 is the same as the exposed portion of the first metal member 101. That is, when the hollow portion 111 of the auxiliary member 110 is passed through the second metal member 102, the second metal member 102 is disposed on the exposed portion of the surface 101b of the first metal member 101 without a gap. The inner peripheral edge of the auxiliary member 110 contacts the side surface 102d of the second metal member 102 or faces the side surface 102d with a fine gap. The plate | board thickness of the auxiliary member 110 is suitably set to such an extent that the plasticization area | region W after the friction stirring process mentioned later does not become metal shortage. Moreover, the 1st metal member 101, the 2nd metal member 102, and the auxiliary member 110 are restrained on a mount so that a movement is impossible using a jig | tool (illustration omitted).
摩擦攪拌工程は、図13及び図14に示すように、接合用回転ツールFを用いて第一金属部材101と第二金属部材102との突合せ部J11を摩擦攪拌によって接合する工程である。接合用回転ツールFは、連結部F1と、攪拌ピンF2とで構成されている。
The friction stirring step is a step of joining the butted portion J11 of the first metal member 101 and the second metal member 102 by friction stirring using the rotating tool F for bonding, as shown in FIGS. The joining rotary tool F includes a connecting portion F1 and a stirring pin F2.
本実施形態では、接合用回転ツールFを右回転させるため、螺旋溝は、基端から先端に向かうにつれて左回りに形成されている。言い換えると、螺旋溝は、螺旋溝を基端から先端に向けてなぞると上から見て左回りに形成されている。螺旋溝をこのように設定することで、摩擦攪拌の際に塑性流動化した金属が螺旋溝によって攪拌ピンF2の先端側に導かれる。これにより、被接合金属部材(第一金属部材101、第二金属部材102及び補助部材110)の外部に溢れ出る金属の量を少なくすることができる。螺旋溝は省略してもよい。
In the present embodiment, the spiral groove is formed in a counterclockwise direction from the base end toward the tip end in order to rotate the joining rotary tool F to the right. In other words, the spiral groove is formed counterclockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end. By setting the spiral groove in this way, the metal plastically fluidized during friction stirring is guided to the tip side of the stirring pin F2 by the spiral groove. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the 1st metal member 101, the 2nd metal member 102, and the auxiliary member 110) can be decreased. The spiral groove may be omitted.
接合用回転ツールFは、マシニングセンタ等の摩擦攪拌装置に取り付けてもよいが、例えば、先端にスピンドルユニット等の回転駆動手段を備えたアームロボットに取り付けてもよい。アームロボットに接合用回転ツールFを取り付けることにより接合用回転ツールFの回転中心軸Fcの傾斜角度を容易に変更することができる。
The rotating tool F for joining may be attached to a friction stirrer such as a machining center, but may be attached to, for example, an arm robot having a rotation driving means such as a spindle unit at the tip. By attaching the joining rotary tool F to the arm robot, the inclination angle of the rotation center axis Fc of the joining rotary tool F can be easily changed.
摩擦攪拌工程では、図13に示すように、まず、補助部材110の表面110bに設定した開始位置Spに右回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。そして、攪拌ピンF2が内隅に達したら図14に示すように、接合用回転ツールFの回転中心軸Fcを第二金属部材102に対して外側に傾斜させる。そして、傾斜させた状態で接合用回転ツールFを第二金属部材102の周囲に亘って相対移動させて突合せ部J1を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域Wが形成される。
In the friction agitation step, as shown in FIG. 13, first, the agitation pin F2 of the rotating tool F for rotation rotated to the start position Sp set on the surface 110b of the auxiliary member 110 is inserted and moved toward the inner corner. Move. When the stirring pin F2 reaches the inner corner, the rotation center axis Fc of the joining rotary tool F is inclined outward with respect to the second metal member 102 as shown in FIG. Then, the joining rotary tool F is relatively moved over the periphery of the second metal member 102 in the inclined state, and the butt joint J1 is friction stir welded. A plasticized region W is formed in the movement locus of the welding rotary tool F.
摩擦攪拌工程では、突合せ部J11に右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材101、第二金属部材102及び補助部材110と攪拌ピンF2とを接触させた状態で突合せ部J11に沿って接合用回転ツールFを相対移動させる。
In the friction stirring process, only the stirring pin F2 rotated to the right is inserted into the abutting portion J11, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the joining rotary tool F is relatively moved along the abutting portion J11 in a state where the first metal member 101, the second metal member 102, the auxiliary member 110, and the stirring pin F2 are in contact with each other.
本実施形態では、接合用回転ツールFの進行方向右側に補助部材110が位置するように接合用回転ツールFの進行方向を設定する。接合用回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。例えば、接合用回転ツールFの進行方向右側に補助部材110を配置しつつ、接合用回転ツールFを左回転させてもよい。もしくは、接合用回転ツールFの進行方向左側に補助部材110を配置し、接合用回転ツールFを左右いずれかに回転させてもよい。接合用回転ツールFの回転方向等の条件と補助部材110との好ましい位置関係については後記する。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 110 is positioned on the right side in the traveling direction of the joining rotary tool F. The rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate. For example, the joining rotary tool F may be rotated counterclockwise while the auxiliary member 110 is disposed on the right side in the traveling direction of the joining rotary tool F. Alternatively, the auxiliary member 110 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right. The preferable positional relationship between the auxiliary member 110 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部J11とが接触するように設定すればよい。図15に示すように、接合用回転ツールFを第二金属部材102の周囲に一周させて、塑性化領域Wをオーバーラップさせたら、補助部材110の表面110bに設定された終了位置Epで接合用回転ツールFを離脱させる。なお、この際に、接合用回転ツールFの抜き穴が形成されるが、当該抜き穴に肉盛溶接を行って補修してもよい。もしくは、抜き穴が形成されないように接合用回転ツールFを相対移動させながら徐々に引き抜いてもよい。
The insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the butting portion J11 are in contact with each other. As shown in FIG. 15, when the joining rotary tool F is made to make a round around the second metal member 102 and the plasticizing region W is overlapped, joining is performed at the end position Ep set on the surface 110 b of the auxiliary member 110. The rotary tool F is removed. At this time, the punched hole of the bonding rotary tool F is formed, but the welded hole may be repaired by overlay welding. Alternatively, the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
除去工程は、図16に示すように、補助部材10を第一金属部材1から除去する工程である。補助部材110は、スリット110d(図15参照)を境にして補助部材110の端部をめくり上げるとともに、図17に示すように、第一金属部材101の表面101bから離間する方向に補助部材110を折り曲げて、第一金属部材101から補助部材110を除去する。
The removal step is a step of removing the auxiliary member 10 from the first metal member 1 as shown in FIG. The auxiliary member 110 flips up the end of the auxiliary member 110 with the slit 110d (see FIG. 15) as a boundary, and as shown in FIG. 17, the auxiliary member 110 is away from the surface 101b of the first metal member 101. And the auxiliary member 110 is removed from the first metal member 101.
以上説明した本実施形態に係る接合方法によれば、第一金属部材101と第二金属部材102とが接合されるとともに、第一金属部材101及び第二金属部材102に加え、補助部材110も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。
According to the joining method according to the present embodiment described above, the first metal member 101 and the second metal member 102 are joined, and in addition to the first metal member 101 and the second metal member 102, the auxiliary member 110 is also used. By performing friction stir welding at the same time, it is possible to prevent metal shortage at the joint (plasticized region W).
また、本実施形態によれば、摩擦攪拌工程によって補助部材110にバリVが形成されるが、除去工程において補助部材110ごと取り除くことができる。これにより、バリVを除去する作業を容易に行うことができる。補助部材110は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材110を取り除くことができる。また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。
Further, according to the present embodiment, the burr V is formed on the auxiliary member 110 by the friction stirring process, but the auxiliary member 110 can be removed together in the removing process. Thereby, the operation | work which removes the burr | flash V can be performed easily. Although the auxiliary member 110 may use a removing device or the like, in the present embodiment, the auxiliary member 110 can be easily removed manually. Moreover, in this embodiment, since only the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
また、接合用回転ツールFの攪拌ピンF2のみを第一金属部材101、第二金属部材102及び補助部材110に接触させた状態で摩擦攪拌を行うため、突合せ部J11の深い位置まで攪拌ピンを挿入することができる。これにより、第一金属部材101と第二金属部材102とを好適に接合することができる。
In addition, since the friction stir is performed in a state where only the stirring pin F2 of the rotating tool F for welding is in contact with the first metal member 101, the second metal member 102, and the auxiliary member 110, the stirring pin is inserted to a deep position of the butt portion J11. Can be inserted. Thereby, the 1st metal member 101 and the 2nd metal member 102 can be joined suitably.
また、図14に示すように、本実施形態に係る摩擦攪拌工程では進行方向右側に補助部材110を配置するとともに接合用回転ツールFを右回転させるため、補助部材110側がRe側となる。
Further, as shown in FIG. 14, in the friction stir process according to the present embodiment, the auxiliary member 110 is arranged on the right side in the traveling direction and the welding rotary tool F is rotated to the right, so the auxiliary member 110 side is the Re side.
例えば、接合用回転ツールFの回転速度が遅い場合では、塑性化領域WのRe側に比べてAd側の方が塑性流動材の温度が上昇しやすくなるため、Ad側にバリVが多く発生する傾向にある。一方、例えば、接合用回転ツールFの回転速度が速い場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが発生する傾向にある。
For example, when the rotational speed of the welding rotary tool F is low, the temperature of the plastic fluidized material is more likely to rise on the Ad side than on the Re side of the plasticizing region W, so that more burrs V are generated on the Ad side. Tend to. On the other hand, for example, when the rotational speed of the bonding rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that burrs V are generated on the Re side due to the higher rotational speed.
本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材110側にバリVが発生する。つまり、本実施形態ではバリVが補助部材110側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材110に形成されたバリVは、補助部材110ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。
In this embodiment, since the rotation speed of the welding rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 110 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 110 side. Thereby, since the burr | flash V formed in the auxiliary member 110 is removed with the auxiliary member 110, the burr removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
上記したように、摩擦攪拌工程の際に、接合用回転ツールFの進行方向のどちら側にバリVが発生するかは接合条件によって異なる。当該接合条件とは、接合用回転ツールFの回転速度、回転方向、進行方向、移動速度(送り速度)、攪拌ピンF2の傾斜角度(テーパー角度)、第一金属部材101、第二金属部材102及び補助部材110の材料、各部材の厚さ等の各要素とこれらの要素の組み合わせで決定される。接合条件に応じて、バリVが発生する側又はバリVが多く発生する側に補助部材110を配置するようにすれば、バリ除去工程を容易に行うことができるため好ましい。
As described above, in the friction stirring step, which side of the traveling direction of the welding rotary tool F the burr V is generated varies depending on the joining conditions. The joining conditions include the rotational speed, the rotational direction, the traveling direction, the moving speed (feeding speed), the inclination angle (taper angle) of the stirring pin F2, the first metal member 101, and the second metal member 102. Further, it is determined by each element such as the material of the auxiliary member 110, the thickness of each member, and the combination of these elements. It is preferable to arrange the auxiliary member 110 on the side where burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
また、補助部材110にスリット110dを設けているため、除去工程の際に、スリット110dを起点に補助部材110を容易に除去することができる。また、摩擦攪拌工程において、塑性化領域Wの始端と終端とをオーバーラップさせることにより接合強度を高めることができる。
Further, since the slit 110d is provided in the auxiliary member 110, the auxiliary member 110 can be easily removed from the slit 110d as a starting point in the removal process. In the friction stirring step, the joining strength can be increased by overlapping the start and end of the plasticized region W.
[第六実施形態]
次に、第六実施形態に係る接合方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第六実施形態では、図18に示すように、補助部材120を第二金属部材102側に沿って配置する点で第五実施形態と主に相違する。本実施形態に係る説明では、第五実施形態と相違する部分を中心に説明する。 [Sixth embodiment]
Next, the joining method according to the sixth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 18, the sixth embodiment is mainly different from the fifth embodiment in that theauxiliary member 120 is arranged along the second metal member 102 side. In the description according to the present embodiment, the description will focus on parts that are different from the fifth embodiment.
次に、第六実施形態に係る接合方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第六実施形態では、図18に示すように、補助部材120を第二金属部材102側に沿って配置する点で第五実施形態と主に相違する。本実施形態に係る説明では、第五実施形態と相違する部分を中心に説明する。 [Sixth embodiment]
Next, the joining method according to the sixth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 18, the sixth embodiment is mainly different from the fifth embodiment in that the
準備工程は、図18に示すように、第一金属部材101と第二金属部材102と4つの補助部材120とを用意する工程である。補助部材120は、第一金属部材101及び第二金属部材102と同じ材料からなる板状部材である。補助部材120の板厚は、後記する摩擦攪拌工程の後の塑性化領域Wが金属不足にならない程度に適宜設定する。補助部材120の高さは、第二金属部材102の側面102dの高さと略同等になっている。また、補助部材120の長さは、側面102dの長さと略同等になっている。なお、補助部材120は、本実施形態では4つの板状部材で構成しているが、一体形成された枠状部材としてもよい。
The preparation step is a step of preparing a first metal member 101, a second metal member 102, and four auxiliary members 120 as shown in FIG. The auxiliary member 120 is a plate-like member made of the same material as the first metal member 101 and the second metal member 102. The plate | board thickness of the auxiliary member 120 is suitably set to such an extent that the plasticization area | region W after the friction stirring process mentioned later does not become metal shortage. The height of the auxiliary member 120 is substantially equal to the height of the side surface 102 d of the second metal member 102. The length of the auxiliary member 120 is substantially the same as the length of the side surface 102d. In addition, although the auxiliary member 120 is comprised by the four plate-shaped members in this embodiment, it is good also as an integrally formed frame-shaped member.
突合せ工程は、第五実施形態と同等であるため説明を省略する。配置工程は、内隅に補助部材20を配置する工程である。図18及び図19に示すように、配置工程では、第二金属部材102の4つの側面102dに、4つの補助部材120をそれぞれ配置する。つまり、配置工程では、第二金属部材102の側面102dと補助部材120の側面120bとを面接触させ、第二金属部材102の外側周面を補助部材120で覆う。補助部材120の端面は、第一金属部材101の表面101bに当接させる。
Since the matching process is the same as that of the fifth embodiment, the description is omitted. An arrangement | positioning process is a process of arrange | positioning the auxiliary member 20 in an inner corner. As shown in FIGS. 18 and 19, in the arranging step, four auxiliary members 120 are arranged on the four side surfaces 102 d of the second metal member 102, respectively. That is, in the arranging step, the side surface 102 d of the second metal member 102 and the side surface 120 b of the auxiliary member 120 are brought into surface contact, and the outer peripheral surface of the second metal member 102 is covered with the auxiliary member 120. The end surface of the auxiliary member 120 is brought into contact with the surface 101 b of the first metal member 101.
摩擦攪拌工程は、図20及び図21に示すように、接合用回転ツールFを用いて第一金属部材101と第二金属部材102との突合せ部J1を摩擦攪拌によって接合する工程である。まず、第一金属部材101の表面101bに設定した開始位置Spに左回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。そして、攪拌ピンF2が内隅に達したら図21に示すように、接合用回転ツールFの回転中心軸Fcを外側に傾斜させる。そして、傾斜させた状態で接合用回転ツールFを第二金属部材2の周囲に亘って相対移動させて突合せ部J1を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域Wが形成される。
20 and FIG. 21, the friction stirring step is a step of joining the butted portion J1 between the first metal member 101 and the second metal member 102 by friction stirring using the welding rotary tool F. First, the agitation pin F2 of the rotating tool for welding F rotated counterclockwise is inserted into the start position Sp set on the surface 101b of the first metal member 101, and is relatively moved toward the inner corner. When the agitating pin F2 reaches the inner corner, the rotation center axis Fc of the welding rotary tool F is inclined outward as shown in FIG. And the rotating tool F for joining is relatively moved over the circumference | surroundings of the 2nd metal member 2 in the inclined state, and the butt | matching part J1 is friction-stir-welded. A plasticized region W is formed in the movement locus of the welding rotary tool F.
摩擦攪拌工程では、突合せ部J1に左回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、第一金属部材101、第二金属部材102及び補助部材120と攪拌ピンF2とを接触させた状態で突合せ部J11に沿って接合用回転ツールFを相対移動させる。
In the friction stirring step, only the stirring pin F2 rotated counterclockwise is inserted into the butting portion J1, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated from each other. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. And the rotation tool F for joining is relatively moved along the abutting part J11 in the state which made the 1st metal member 101, the 2nd metal member 102, the auxiliary member 120, and the stirring pin F2 contact.
本実施形態では、接合用回転ツールFの進行方向左側に補助部材120が位置するように接合用回転ツールFの進行方向を設定する。また、接合用回転ツールFの回転速度は、Re側にバリVが発生する程度に高速回転させる。攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部J11とが接触するように設定すればよい。図20に示すように、接合用回転ツールFを第二金属部材102の周囲に一周させて、塑性化領域Wをオーバーラップさせたら、第一金属部材101の表面101bに設定された終了位置Epで接合用回転ツールFを離脱させる。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 120 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the butt | matching part J11 may contact. As shown in FIG. 20, when the joining rotary tool F is made to make a round around the second metal member 102 and the plasticized region W is overlapped, the end position Ep set on the surface 101 b of the first metal member 101. Then, the joining rotary tool F is detached.
除去工程は、図22に示すように、4つの補助部材120を第二金属部材102から除去する工程である。除去工程では、第二金属部材102の側面102dから離間する方向に補助部材120を折り曲げて、第二金属部材102から補助部材120をそれぞれ除去する。
The removal step is a step of removing the four auxiliary members 120 from the second metal member 102 as shown in FIG. In the removing step, the auxiliary member 120 is bent in a direction away from the side surface 102d of the second metal member 102, and the auxiliary member 120 is removed from the second metal member 102, respectively.
以上説明した本実施形態に係る接合方法によれば、第一金属部材101と第二金属部材102とが接合されるとともに、第一金属部材101及び第二金属部材102に加え、補助部材120も同時に摩擦攪拌接合することにより、接合部(塑性化領域W)の金属不足を防ぐことができる。
According to the joining method according to the present embodiment described above, the first metal member 101 and the second metal member 102 are joined, and in addition to the first metal member 101 and the second metal member 102, the auxiliary member 120 is also used. By performing friction stir welding at the same time, it is possible to prevent metal shortage at the joint (plasticized region W).
また、本実施形態によれば、摩擦攪拌工程によって補助部材120にバリVが形成されるが、除去工程において補助部材120ごと取り除くことができる。これにより、バリVを除去する作業を容易に行うことができる。補助部材120は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材120を取り除くことができる。また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。
Further, according to the present embodiment, the burrs V are formed in the auxiliary member 120 by the friction stirring process, but the auxiliary member 120 can be removed together in the removing process. Thereby, the operation | work which removes the burr | flash V can be performed easily. Although the auxiliary member 120 may use a removing device or the like, in the present embodiment, the auxiliary member 120 can be easily removed manually. Moreover, in this embodiment, since only the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
また、図21に示すように、本実施形態に係る摩擦攪拌工程では接合用回転ツールFの進行方向左側に補助部材120を配置するとともに、接合用回転ツールFを左回転させるため、補助部材120側がRe側となる。本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材120側にバリVが発生する。つまり、本実施形態ではバリVが補助部材20側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材120に形成されたバリVは、補助部材120ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。また、本実施形態の配置工程ように、第二金属部材102の側面102dに沿うようにして、内隅に補助部材120を配置してもよい。
Further, as shown in FIG. 21, in the friction stirring step according to the present embodiment, the auxiliary member 120 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary member 120 is rotated in order to rotate the bonding rotary tool F counterclockwise. The side is the Re side. In the present embodiment, since the rotation speed of the bonding rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 120 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that a large number of burrs V are formed on the auxiliary member 20 side. Thereby, since the burr | flash V formed in the auxiliary member 120 is removed with the auxiliary member 120, the burr removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened. Moreover, you may arrange | position the auxiliary member 120 in an inner corner so that it may follow the side surface 102d of the 2nd metal member 102 like the arrangement | positioning process of this embodiment.
[第七実施形態]
次に、第七実施形態に係る接合方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第七実施形態では、図23に示すように、第二金属部材103が円柱状を呈する点で第六実施形態と主に相違する。 [Seventh embodiment]
Next, the joining method according to the seventh embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 23, the seventh embodiment is mainly different from the sixth embodiment in that the second metal member 103 has a cylindrical shape.
次に、第七実施形態に係る接合方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第七実施形態では、図23に示すように、第二金属部材103が円柱状を呈する点で第六実施形態と主に相違する。 [Seventh embodiment]
Next, the joining method according to the seventh embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 23, the seventh embodiment is mainly different from the sixth embodiment in that the second metal member 103 has a cylindrical shape.
準備工程は、図23に示すように、第一金属部材201と第二金属部材203と補助部材230とを用意する工程である。第二金属部材203は、円柱状を呈する金属部材である。第二金属部材203の材料は、第一金属部材201と同等である。
The preparation step is a step of preparing a first metal member 201, a second metal member 203, and an auxiliary member 230 as shown in FIG. The second metal member 203 is a metal member having a cylindrical shape. The material of the second metal member 203 is the same as that of the first metal member 201.
補助部材230は、薄板状を呈し、かつ、円筒状を呈する金属部材である。補助部材230の材料は、第一金属部材201と同等である。補助部材230の内径は、第二金属部材203の外径と略同等になっている。補助部材230の板厚は、後記する摩擦攪拌工程の際に、塑性化領域Wが金属不足にならない程度に適宜設定する。補助部材230の一部には、高さ方向に連続するスリット230dが形成されている。
The auxiliary member 230 is a metal member having a thin plate shape and a cylindrical shape. The material of the auxiliary member 230 is the same as that of the first metal member 201. The inner diameter of the auxiliary member 230 is substantially equal to the outer diameter of the second metal member 203. The plate thickness of the auxiliary member 230 is appropriately set to such an extent that the plasticized region W does not run out of metal during the friction stirring process described later. A part of the auxiliary member 230 is formed with a slit 230d continuous in the height direction.
突合せ工程は、第一金属部材201の表面201bと第二金属部材203の端面203cとを突き合わせる工程である。第一金属部材201の表面201bと第二金属部材203の端面203cとを突き合わせることにより、突合せ部J12が形成される。突合せ部J12の平面形状は円形となる。突合せ工程によって、第一金属部材201の表面201bと、第二金属部材203の外周面203dとで内隅が形成される。
The butting process is a process in which the surface 201b of the first metal member 201 and the end surface 203c of the second metal member 203 are butted. The butted portion J12 is formed by butting the surface 201b of the first metal member 201 and the end surface 203c of the second metal member 203. The planar shape of the butted portion J12 is a circle. By the butting process, an inner corner is formed by the surface 201 b of the first metal member 201 and the outer peripheral surface 203 d of the second metal member 203.
配置工程は、図24に示すように、内隅に補助部材230を配置する工程である。配置工程では、補助部材230の端面を第一金属部材201の表面201bに当接させつつ、補助部材230の側面230bを第二金属部材203の外周面203dに面接触させる。
The placement step is a step of placing the auxiliary member 230 at the inner corner as shown in FIG. In the arrangement step, the side surface 230b of the auxiliary member 230 is brought into surface contact with the outer peripheral surface 203d of the second metal member 203 while the end surface of the auxiliary member 230 is brought into contact with the surface 201b of the first metal member 201.
摩擦攪拌工程は、具体的な図示は省略するが、接合用回転ツールFを用いて第一金属部材201と第二金属部材203との突合せ部J12を摩擦攪拌によって接合する工程である。摩擦攪拌工程の接合条件は、第六実施形態と同じ要領で、補助部材230にバリが発生するように設定する。摩擦攪拌工程については、第六実施形態の摩擦攪拌工程と略同等であるため、詳細な説明は省略する。
Although the specific illustration is omitted, the friction stirring step is a step of joining the abutting portion J12 of the first metal member 201 and the second metal member 203 by friction stirring using the welding rotary tool F. The joining conditions of the friction stirring step are set so that burrs are generated in the auxiliary member 230 in the same manner as in the sixth embodiment. The friction stir process is substantially the same as the friction stir process of the sixth embodiment, and detailed description thereof is omitted.
除去工程は、具体的な図示は省略するが、補助部材230を第二金属部材203から除去する工程である。除去工程では、補助部材230の上端部を第二金属部材203から離間する方向に折り曲げて、第二金属部材203から補助部材230を除去する。また、除去工程では、スリット230dの部分を起点としてめくるようにすると補助部材230を除去しやすい。
The removal step is a step of removing the auxiliary member 230 from the second metal member 203, although a specific illustration is omitted. In the removing step, the auxiliary member 230 is removed from the second metal member 203 by bending the upper end portion of the auxiliary member 230 in a direction away from the second metal member 203. In the removing step, the auxiliary member 230 can be easily removed by turning the slit 230d as a starting point.
以上説明した第七実施形態に係る接合方法によれば、第六実施形態に係る接合方法と略同等の効果を得ることができる。また、本実施形態に係る接合方法によれば、板状を呈する第一金属部材201と円柱状を呈する第二金属部材203とを接合することができる。また、第一金属部材201及び第二金属部材203に加え、補助部材230を同時に摩擦攪拌することにより接合部(塑性化領域W)の金属不足を防ぐことができる。また、本実施形態に係る除去工程によれば、スリット230dを起点として、補助部材230を容易に除去することができる。
According to the joining method according to the seventh embodiment described above, substantially the same effect as the joining method according to the sixth embodiment can be obtained. Moreover, according to the joining method which concerns on this embodiment, the 1st metal member 201 which exhibits plate shape, and the 2nd metal member 203 which exhibits columnar shape can be joined. Moreover, in addition to the 1st metal member 201 and the 2nd metal member 203, the auxiliary member 230 can be friction-stirred simultaneously, and the metal shortage of a junction part (plasticization area | region W) can be prevented. Moreover, according to the removal process which concerns on this embodiment, the auxiliary member 230 can be easily removed starting from the slit 230d.
なお、第七実施形態にかかる接合方法では、例えば、第二金属部材を断面多角形からなる柱状部材としてもよい。また、第一金属部材201の高さ方向に貫通する貫通孔を設けてもよい。この場合の突合せ工程では、第一金属部材201の貫通孔を第二金属部材で覆うように突き合わせる。
In the joining method according to the seventh embodiment, for example, the second metal member may be a columnar member having a polygonal cross section. Further, a through hole penetrating in the height direction of the first metal member 201 may be provided. In the butting process in this case, butting is performed so that the through hole of the first metal member 201 is covered with the second metal member.
[第八実施形態]
次に、第八実施形態に係る接合方法について説明する。第八実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第八実施形態では、図25に示すように、第二金属部材204が円筒状を呈する点で第七実施形態と相違する。 [Eighth embodiment]
Next, the joining method according to the eighth embodiment will be described. In the joining method according to the eighth embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 25, the eighth embodiment is different from the seventh embodiment in that thesecond metal member 204 has a cylindrical shape.
次に、第八実施形態に係る接合方法について説明する。第八実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第八実施形態では、図25に示すように、第二金属部材204が円筒状を呈する点で第七実施形態と相違する。 [Eighth embodiment]
Next, the joining method according to the eighth embodiment will be described. In the joining method according to the eighth embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 25, the eighth embodiment is different from the seventh embodiment in that the
準備工程は、図25に示すように、第一金属部材201と第二金属部材204と補助部材240とを用意する工程である。第一金属部材201の中央には、高さ方向に貫通する貫通孔201eが形成されている。第二金属部材204は、円筒状を呈する金属部材である。補助部材240の材料は、第一金属部材と同等である。第二金属部材204の中空部は、貫通孔201eと連通するようになっている。
The preparation step is a step of preparing a first metal member 201, a second metal member 204, and an auxiliary member 240 as shown in FIG. A through hole 201e that penetrates in the height direction is formed in the center of the first metal member 201. The second metal member 204 is a metal member having a cylindrical shape. The material of the auxiliary member 240 is the same as that of the first metal member. The hollow portion of the second metal member 204 communicates with the through hole 201e.
補助部材240は、中空部241を備えた板状の金属部材である。補助部材240の材料は、第一金属部材201と同等である。中空部241の内径は、第二金属部材204の外径と略同等になっている。補助部材240の板厚は、後記する摩擦攪拌工程の際に、塑性化領域Wが金属不足にならない程度に適宜設定する。補助部材240には、幅方向に連続するスリット240dが形成されている。
The auxiliary member 240 is a plate-shaped metal member provided with a hollow portion 241. The material of the auxiliary member 240 is the same as that of the first metal member 201. The inner diameter of the hollow portion 241 is substantially the same as the outer diameter of the second metal member 204. The plate thickness of the auxiliary member 240 is appropriately set to such an extent that the plasticized region W does not run out of metal during the friction stirring step described later. The auxiliary member 240 has a slit 240d continuous in the width direction.
突合せ工程は、図25に示すように、第一金属部材201の表面201bと、第二金属部材204の端面204cとを突き合わせる工程である。第一金属部材201の表面201bと、第二金属部材204の端面204cとを突き合わせることにより、突合せ部J13が形成される。突合せ部J13の平面形状はリング状になる。突合せ工程によって、第一金属部材1の表面201bと、第二金属部材204の外周面204dとで内隅が形成される。
The butting process is a process of butting the surface 201b of the first metal member 201 and the end surface 204c of the second metal member 204 as shown in FIG. The butted portion J13 is formed by butting the surface 201b of the first metal member 201 with the end surface 204c of the second metal member 204. The planar shape of the butting portion J13 is a ring shape. By the butting process, an inner corner is formed by the surface 201b of the first metal member 1 and the outer peripheral surface 204d of the second metal member 204.
配置工程は、図26に示すように、内隅に補助部材240を配置する工程である。配置工程では、補助部材240の裏面240cを第一金属部材201の表面201bに面接触させる。
The placement step is a step of placing the auxiliary member 240 at the inner corner as shown in FIG. In the arranging step, the back surface 240 c of the auxiliary member 240 is brought into surface contact with the front surface 201 b of the first metal member 201.
摩擦攪拌工程は、具体的な図示は省略するが、接合用回転ツールFを用いて第一金属部材201と第二金属部材204との突合せ部J13を摩擦攪拌によって接合する工程である。摩擦攪拌工程の接合条件は、第七実施形態と同じ要領で、補助部材240にバリが発生するように設定する。摩擦攪拌工程については、第七実施形態の摩擦攪拌工程と略同等であるため、詳細な説明は省略する。
Although the specific illustration is omitted, the friction stirring step is a step of joining the abutting portion J13 of the first metal member 201 and the second metal member 204 by friction stirring using the welding rotary tool F. The joining conditions of the friction stirring process are set so that burrs are generated in the auxiliary member 240 in the same manner as in the seventh embodiment. The friction stir process is substantially the same as the friction stir process of the seventh embodiment, and detailed description thereof is omitted.
除去工程は、具体的な図示は省略するが、補助部材240を第一金属部材201から除去する工程である。除去工程では、補助部材240を第一金属部材201から離間する方向に折り曲げて、第一金属部材201から補助部材240を除去する。また、除去工程では、スリット240dの部分を起点にめくるようにすると除去しやすい。
The removal step is a step of removing the auxiliary member 240 from the first metal member 201, although a specific illustration is omitted. In the removing step, the auxiliary member 240 is bent in a direction away from the first metal member 201, and the auxiliary member 240 is removed from the first metal member 201. Further, in the removing process, it is easy to remove if the slit 240d is turned to the starting point.
以上説明した第八実施形態に係る接合方法によれば、第七実施形態に係る接合方法と略同等の効果を得ることができる。また、本実施形態に係る接合方法によれば、板状を呈する第一金属部材201と円筒状を呈する第二金属部材204とを接合することができる。また、第一金属部材201及び第二金属部材204に加え、補助部材240を同時に摩擦攪拌することにより接合部(塑性化領域W)の金属不足を防ぐことができる。また、本実施形態に係る除去工程によれば、スリット240dを起点として、補助部材240を容易に除去することができる。
According to the joining method according to the eighth embodiment described above, substantially the same effect as the joining method according to the seventh embodiment can be obtained. Moreover, according to the joining method which concerns on this embodiment, the 1st metal member 201 which exhibits plate shape, and the 2nd metal member 204 which exhibits cylindrical shape can be joined. Moreover, in addition to the 1st metal member 201 and the 2nd metal member 204, the auxiliary member 240 can be friction-stirred simultaneously, and the metal shortage of a junction part (plasticization area | region W) can be prevented. Moreover, according to the removal process which concerns on this embodiment, the auxiliary member 240 can be easily removed starting from the slit 240d.
なお、第八実施形態にかかる接合方法では、第二金属部材204を円筒状としたが、例えば、他の断面を呈する筒状部材としてもよい。また、第一金属部材201の貫通孔201eを設けないようにしてもよい。
In the joining method according to the eighth embodiment, the second metal member 204 has a cylindrical shape, but may be a cylindrical member having another cross section, for example. Further, the through hole 201e of the first metal member 201 may not be provided.
また、上記の実施形態では、接合用回転ツールFに対して片側にのみ補助部材を配置したが、接合用回転ツールFの両側に補助部材を配置してもよい。この場合の除去工程では、接合用回転ツールFの両側に配置された補助部材を除去する。つまり、本発明の除去工程では、第一金属部材201及び第二金属部材203の少なくとも一方から補助部材を除去すればよい。また、第七実施形態及び第八実施形態の配置工程では、第二金属部材203の外周面203dの全周又は第一金属部材201の表面201b(露出部)の全部を補助部材230,240でそれぞれ覆うようにしているが、少なくとも一部を覆うようにしてもよい。
In the above embodiment, the auxiliary member is arranged only on one side with respect to the joining rotary tool F. However, the auxiliary member may be arranged on both sides of the joining rotary tool F. In the removing step in this case, the auxiliary members arranged on both sides of the joining rotary tool F are removed. That is, in the removing step of the present invention, the auxiliary member may be removed from at least one of the first metal member 201 and the second metal member 203. Moreover, in the arrangement | positioning process of 7th embodiment and 8th embodiment, the whole circumference of the outer peripheral surface 203d of the 2nd metal member 203 or the whole surface 201b (exposed part) of the 1st metal member 201 is made into the auxiliary members 230 and 240. Although each is covered, you may make it cover at least one part.
[第九実施形態]
本発明の第九実施形態に係る液冷ジャケットの製造方法及び液冷ジャケットについて、図面を参照して詳細に説明する。本実施形態に係る液冷ジャケットの製造方法では、図27に示すように、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Ninth embodiment]
A manufacturing method of a liquid cooling jacket and a liquid cooling jacket according to a ninth embodiment of the present invention will be described in detail with reference to the drawings. In the method for manufacturing a liquid cooling jacket according to the present embodiment, as shown in FIG. 27, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
本発明の第九実施形態に係る液冷ジャケットの製造方法及び液冷ジャケットについて、図面を参照して詳細に説明する。本実施形態に係る液冷ジャケットの製造方法では、図27に示すように、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Ninth embodiment]
A manufacturing method of a liquid cooling jacket and a liquid cooling jacket according to a ninth embodiment of the present invention will be described in detail with reference to the drawings. In the method for manufacturing a liquid cooling jacket according to the present embodiment, as shown in FIG. 27, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed.
準備工程は、ジャケット本体302と封止体303とを用意する工程である。ジャケット本体302は、底部310と、周壁部311と、支持部312とから構成されている。ジャケット本体302の材料は、摩擦攪拌可能な金属であればよいが、例えば、アルミニウム、アルミニウム合金、銅、銅合金、チタン、チタン合金、マグネシウム、マグネシウム合金等摩擦攪拌可能な金属で形成されている。ジャケット本体302は、上方が開口した箱状部材である。底部310は、平面視矩形を呈する。周壁部311は、底部310の周縁から立ち上っており、矩形枠状を呈する。
The preparation step is a step of preparing the jacket main body 302 and the sealing body 303. The jacket body 302 includes a bottom portion 310, a peripheral wall portion 311, and a support portion 312. The material of the jacket main body 302 may be a metal capable of friction stir, but is formed of a metal capable of friction stir, such as aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, and magnesium alloy. . The jacket main body 302 is a box-shaped member having an upper opening. The bottom portion 310 has a rectangular shape in plan view. The peripheral wall portion 311 rises from the periphery of the bottom portion 310 and has a rectangular frame shape.
周壁部311は、壁部311A,311B,311C,311Dで構成されている。壁部311A,311Bは互いに対向しており短辺部となっている。壁部311C,311Dは、互いに対向しており長辺部となっている。ジャケット本体302の内部には凹部313が形成されている。周壁部311の端面311aの内周縁には、段差部315が形成されている。段差部315は、端面311aよりも一段下がった位置に形成された段差底面315aと、段差底面315aから立ち上る段差側面315bとで構成されている。
The peripheral wall portion 311 includes wall portions 311A, 311B, 311C, and 311D. The walls 311A and 311B are opposed to each other and are short sides. The wall portions 311C and 311D are opposed to each other and are long side portions. A recess 313 is formed inside the jacket body 302. A step portion 315 is formed on the inner peripheral edge of the end surface 311 a of the peripheral wall portion 311. The step portion 315 includes a step bottom surface 315a formed at a position lower than the end surface 311a and a step side surface 315b rising from the step bottom surface 315a.
支持部312は、底部310から立ち上るとともに、周壁部311の壁部311Bから延設されている。支持部312は、周壁部311から離間して形成されていてもよいし、省略してもよい。支持部312の端面312aは、段差底面315aと面一になっている。支持部312の端面312aには、突出部312bが形成されている。突出部312bは、本実施形態では円柱状を呈する。突出部312bは、封止体303と嵌め合わされる部位である。
The support portion 312 rises from the bottom portion 310 and extends from the wall portion 311B of the peripheral wall portion 311. The support portion 312 may be formed away from the peripheral wall portion 311 or may be omitted. The end surface 312a of the support portion 312 is flush with the step bottom surface 315a. A projecting portion 312 b is formed on the end surface 312 a of the support portion 312. The protrusion 312b has a cylindrical shape in the present embodiment. The protruding portion 312 b is a portion that is fitted with the sealing body 303.
封止体303は、ジャケット本体302の開口部を覆う金属部材である。封止体303の材料は特に制限されないが、本実施形態では、ジャケット本体302と同じ材料で形成されている。封止体303は、本体部321と、複数のフィン322とで構成されている。
The sealing body 303 is a metal member that covers the opening of the jacket main body 302. The material of the sealing body 303 is not particularly limited, but is formed of the same material as that of the jacket body 302 in the present embodiment. The sealing body 303 includes a main body portion 321 and a plurality of fins 322.
本体部321は、平面視矩形状を呈する板状部材である。本体部321は、段差部315に載置される部位である。本体部321の板厚寸法は、段差側面315bの高さ寸法よりも大きくなっている。本実施形態では、本体部321の板厚寸法は、段差側面315bの高さ寸法の2倍程度になっている。フィン322は、本体部321の裏面321bに形成される板状部材である。フィン322は、所定の間隔をあけて複数枚形成されている。
The main body 321 is a plate-like member having a rectangular shape in plan view. The main body portion 321 is a part placed on the step portion 315. The plate | board thickness dimension of the main-body part 321 is larger than the height dimension of the level | step difference side surface 315b. In the present embodiment, the plate thickness dimension of the main body 321 is about twice the height dimension of the step side surface 315b. The fins 322 are plate-like members formed on the back surface 321b of the main body portion 321. A plurality of fins 322 are formed at a predetermined interval.
本体部321の裏面321bには、凹溝323が3つ形成されている。凹溝323は、突出部312bに対応する位置において、突出部312bが挿入されるように形成されている。凹溝323の中空部の形状は、本実施形態では円柱状を呈するが、突出部312bが挿入可能な形状であればよい。
Three concave grooves 323 are formed on the back surface 321b of the main body 321. The concave groove 323 is formed so that the protruding portion 312b is inserted at a position corresponding to the protruding portion 312b. The hollow portion of the concave groove 323 has a cylindrical shape in the present embodiment, but may be any shape as long as the protruding portion 312b can be inserted.
突合せ工程は、図28に示すように、ジャケット本体302と封止体303とを突き合わせる工程である。図29に示すように、突合せ工程では、ジャケット本体302の段差部315に封止体303を載置する。本体部321の側面321cと段差側面315bとが突き合わされて突合せ部J31が形成される。また、本体部321の裏面321bと段差底面315aとが重ね合わされる。突合せ部J31は、封止体303の全周に亘って形成される。また、周壁部311の端面311aと、本体部321の4つの側面321cとで内隅が形成される。また、突合せ工程では、支持部312の突出部312bに、封止体303の凹溝323を嵌め合わせる。これにより、嵌合部J32が形成される。
The butting process is a process of matching the jacket main body 302 and the sealing body 303 as shown in FIG. As shown in FIG. 29, in the butting process, the sealing body 303 is placed on the step portion 315 of the jacket main body 302. The side surface 321c of the main body portion 321 and the step side surface 315b are abutted to form the abutting portion J31. Further, the back surface 321b of the main body 321 and the step bottom surface 315a are overlapped. The butting portion J31 is formed over the entire circumference of the sealing body 303. Further, an inner corner is formed by the end surface 311 a of the peripheral wall portion 311 and the four side surfaces 321 c of the main body portion 321. In the butting step, the recessed groove 323 of the sealing body 303 is fitted into the protruding portion 312 b of the support portion 312. Thereby, the fitting part J32 is formed.
配置工程は、図30に示すように、ジャケット本体302に補助部材330を配置する工程である。補助部材330は、平面視矩形の中空部331が形成された板状部材である。補助部材330の板厚寸法は、後記する第二摩擦攪拌工程において接合部に金属不足が起こらない程度に適宜設定する。中空部331は、封止体303の平面形状と同じ形状になっている。補助部材330の材料は、摩擦攪拌可能な金属であれば特に制限されないが、本実施形態ではジャケット本体302及び封止体303と同じ材料になっている。補助部材330の一部には、幅方向に連続するスリット332が形成されている。
The placement step is a step of placing the auxiliary member 330 on the jacket main body 302 as shown in FIG. The auxiliary member 330 is a plate-like member in which a hollow portion 331 having a rectangular shape in plan view is formed. The plate thickness dimension of the auxiliary member 330 is appropriately set to such an extent that a metal shortage does not occur at the joint in the second friction stirring step described later. The hollow portion 331 has the same shape as the planar shape of the sealing body 303. The material of the auxiliary member 330 is not particularly limited as long as it is a metal capable of friction stir, but in this embodiment, the material is the same as that of the jacket main body 302 and the sealing body 303. A slit 332 that is continuous in the width direction is formed in a part of the auxiliary member 330.
配置工程では、図31に示すように、周壁部311の端面311aに補助部材330を配置する。これにより、端面311aは、補助部材330によって覆われる。補助部材330の内周縁は、本体部321の側面321cに面接触するか、若しくは微細な隙間をあけて配置される。なお、本実施形態では端面311aの全体を補助部材330で覆っているが、端面311aの一部が覆われるように補助部材330の大きさを調節してもよい。
In the arranging step, the auxiliary member 330 is arranged on the end surface 311a of the peripheral wall 311 as shown in FIG. Thereby, the end surface 311 a is covered with the auxiliary member 330. The inner peripheral edge of the auxiliary member 330 is in surface contact with the side surface 321c of the main body 321 or is arranged with a fine gap. In the present embodiment, the entire end surface 311a is covered with the auxiliary member 330, but the size of the auxiliary member 330 may be adjusted so that a part of the end surface 311a is covered.
摩擦攪拌工程は、ジャケット本体302と封止体303とを接合用回転ツールFを用いて摩擦攪拌接合する工程である。接合用回転ツールFは、図32及び図33に示すように、連結部F1と、攪拌ピンF2とで構成されている。本実施形態では、接合用回転ツールFを右回転させるため、螺旋溝は、基端から先端に向かうにつれて左回りに形成されている。螺旋溝をこのように設定することで、摩擦攪拌の際に塑性流動化した金属が螺旋溝によって攪拌ピンF2の先端側に導かれる。これにより、被接合金属部材(ジャケット本体302、封止体303及び補助部材330)の外部に溢れ出る金属の量を少なくすることができる。
The friction stir process is a process in which the jacket main body 302 and the sealing body 303 are friction stir welded using the rotating tool F for joining. As shown in FIGS. 32 and 33, the joining rotary tool F includes a connecting portion F1 and a stirring pin F2. In the present embodiment, the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right. By setting the spiral groove in this way, the metal plastically fluidized during friction stirring is guided to the tip side of the stirring pin F2 by the spiral groove. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the jacket main body 302, the sealing body 303, and the auxiliary member 330) can be decreased.
本実施形態の摩擦攪拌工程では、第一摩擦攪拌工程と、第二摩擦攪拌工程とを行う。第一摩擦攪拌工程は、支持部312と封止体303とを接合する工程である。図32に示すように、第一摩擦攪拌工程では、封止体303の表面321aに設定した開始位置Sp1に、右回転させた接合用回転ツールFの攪拌ピンF2を挿入し、壁部311B上の補助部材330に設定された終了位置Ep1に向けて相対移動させる。図33に示すように、第一摩擦攪拌工程では、攪拌ピンF2が突出部312bに達するか、若しくは攪拌ピンF2を封止体303のみに接触させた状態で突出部312bと凹溝323との嵌合部J32を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W1が形成される。接合用回転ツールFが終了位置Ep1に達したら、一旦接合用回転ツールFを離脱させる。なお、この際に、接合用回転ツールFの抜き穴が形成されるが、当該抜き穴に肉盛溶接を行ってもよい。もしくは、抜き穴が形成されないように接合用回転ツールFを相対移動させながら徐々に引き抜いてもよい。
In the friction stirring step of the present embodiment, a first friction stirring step and a second friction stirring step are performed. The first friction stirring step is a step of joining the support portion 312 and the sealing body 303. As shown in FIG. 32, in the first friction agitation step, the agitation pin F2 of the rotating tool F for bonding rotated to the right is inserted into the start position Sp1 set on the surface 321a of the sealing body 303, and the wall 311B is The auxiliary member 330 is relatively moved toward the end position Ep1 set. As shown in FIG. 33, in the first friction stirring process, the stirring pin F2 reaches the protruding portion 312b, or the protruding portion 312b and the groove 323 are in contact with the stirring pin F2 only in the sealing body 303. The fitting portion J32 is friction stir welded. A plasticized region W1 is formed in the movement locus of the welding rotary tool F. When the joining rotary tool F reaches the end position Ep1, the joining rotary tool F is once detached. At this time, a punch hole of the bonding rotary tool F is formed, but overlay welding may be performed on the punch hole. Alternatively, the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
第二摩擦攪拌工程は、周壁部311と封止体303とを接合する工程である。図34に示すように、まず、補助部材330に設定した開始位置Sp2に右回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。攪拌ピンF2が内隅に達したら図35に示すように、接合用回転ツールFの回転中心軸Fcを外側に傾斜させる。そして、傾斜させた状態で接合用回転ツールFを封止体303の周囲に亘って相対移動させて突合せ部J31を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W2が形成される。
The second friction stirring step is a step of joining the peripheral wall portion 311 and the sealing body 303. As shown in FIG. 34, first, the agitation pin F2 of the welding rotary tool F rotated to the right is inserted into the start position Sp2 set on the auxiliary member 330, and is relatively moved toward the inner corner. When the stirring pin F2 reaches the inner corner, as shown in FIG. 35, the rotation center axis Fc of the joining rotary tool F is inclined outward. And the rotating tool F for joining is relatively moved over the circumference | surroundings of the sealing body 303 in the inclined state, and the butt | matching part J31 is friction stir-welded. A plasticized region W2 is formed in the movement locus of the welding rotary tool F.
第二摩擦攪拌工程では、突合せ部J31に右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、ジャケット本体302、封止体303及び補助部材330と攪拌ピンF2とを接触させた状態で突合せ部J31に沿って接合用回転ツールFを相対移動させる。
In the second friction stirring step, only the stirring pin F2 rotated to the right is inserted into the abutting portion J31, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the joining rotary tool F is relatively moved along the abutting portion J31 in a state where the jacket main body 302, the sealing body 303 and the auxiliary member 330 are in contact with the stirring pin F2.
本実施形態では、接合用回転ツールFの進行方向右側に補助部材330が位置するように接合用回転ツールFの進行方向を設定する。接合用回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。例えば、接合用回転ツールFの進行方向右側に補助部材330を配置しつつ、接合用回転ツールFを左回転させてもよい。もしくは、接合用回転ツールFの進行方向左側に補助部材330を配置し、接合用回転ツールFを左右いずれかに回転させてもよい。接合用回転ツールFの回転方向等の条件と補助部材330との好ましい位置関係については後記する。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 330 is positioned on the right side of the traveling direction of the joining rotary tool F. The rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate. For example, the joining rotary tool F may be rotated counterclockwise while the auxiliary member 330 is disposed on the right side in the traveling direction of the joining rotary tool F. Alternatively, the auxiliary member 330 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right. The preferable positional relationship between the auxiliary member 330 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部J31とが接触するように設定すればよい。図34に示すように、接合用回転ツールFを封止体303の周囲に一周させて、塑性化領域W2をオーバーラップさせたら、補助部材330に設定された終了位置Ep2で接合用回転ツールFを離脱させる。
The insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the butting portion J31 are in contact with each other. As shown in FIG. 34, when the joining rotary tool F is made to make a round around the sealing body 303 and the plasticizing region W2 is overlapped, the joining rotary tool F is set at the end position Ep2 set on the auxiliary member 330. To leave.
除去工程は、図36に示すように、補助部材330をジャケット本体302から除去する工程である。補助部材330は、スリット332(図34参照)を境にして補助部材330の端部をめくり上げるとともに、図37に示すように、周壁部311の端面311aから離間する方向に補助部材330を折り曲げて、周壁部311から補助部材330を除去する。以上の製造方法によって液冷ジャケット301が形成される。
The removal step is a step of removing the auxiliary member 330 from the jacket main body 302 as shown in FIG. The auxiliary member 330 turns up the end of the auxiliary member 330 with the slit 332 (see FIG. 34) as a boundary, and bends the auxiliary member 330 in a direction away from the end surface 311a of the peripheral wall 311 as shown in FIG. Then, the auxiliary member 330 is removed from the peripheral wall portion 311. The liquid cooling jacket 301 is formed by the above manufacturing method.
液冷ジャケット301は、中空部を備えた金属製の中空部材である。液冷ジャケット301の中空部に熱輸送流体(例えば、水)を流通させることにより、ジャケット本体302又は封止体303に設置された発熱体(図示省略)と熱交換を行うことができる。また、本実施形態に係る液冷ジャケット301は、複数のフィン322が形成されているため、熱交換効率を高めることができる。
The liquid cooling jacket 301 is a metal hollow member having a hollow portion. By circulating a heat transport fluid (for example, water) through the hollow portion of the liquid cooling jacket 301, heat exchange can be performed with a heating element (not shown) installed in the jacket main body 302 or the sealing body 303. Moreover, since the liquid cooling jacket 301 which concerns on this embodiment has the several fin 322, it can improve heat exchange efficiency.
以上説明した液冷ジャケットの製造方法及び液冷ジャケットによれば、内隅に補助部材330を配置して、ジャケット本体302と封止体303に加え補助部材330も同時に摩擦攪拌することにより接合部(塑性化領域W2)の金属不足を防ぐことができる。また、除去工程によって、補助部材330ごとバリVを除去することができるため、バリVを容易に除去することができる。
According to the method for manufacturing a liquid cooling jacket and the liquid cooling jacket described above, the auxiliary member 330 is disposed in the inner corner, and the auxiliary member 330 is simultaneously frictionally stirred in addition to the jacket main body 302 and the sealing body 303 to thereby join the joint portion. It is possible to prevent metal shortage in (plasticized region W2). Further, since the burr V can be removed together with the auxiliary member 330 by the removing step, the burr V can be easily removed.
また、第二摩擦攪拌工程では、接合用回転ツールFの回転中心軸Fcを封止体303の外側に傾斜させた状態で摩擦攪拌を行うことにより、接合用回転ツールFを内隅に容易に挿入することができる。また、支持部312は省略してもよいが、本実施形態のように支持部312を設け、支持部312(突出部312b)と封止体303とを接合することで、液冷ジャケット301の強度を高めることができる。また、突合せ工程において、支持部312の突出部312bを封止体303の凹溝323に嵌め合わせるようにしたため、封止体303の位置決め作業を容易に行うことができる。また、第一摩擦攪拌工程において封止体303の位置ずれを防ぐことができる。
Further, in the second friction stirring step, by performing friction stirring with the rotation center axis Fc of the rotation tool F for bonding inclined to the outside of the sealing body 303, the rotation tool F for bonding can be easily placed at the inner corner. Can be inserted. Although the support portion 312 may be omitted, the support portion 312 is provided as in the present embodiment, and the support portion 312 (protruding portion 312b) and the sealing body 303 are joined to each other, so that the liquid cooling jacket 301 is connected. Strength can be increased. Further, since the protruding portion 312b of the support portion 312 is fitted in the concave groove 323 of the sealing body 303 in the butting step, the positioning operation of the sealing body 303 can be easily performed. Moreover, the position shift of the sealing body 303 can be prevented in the first friction stirring step.
また、第一摩擦攪拌工程では、接合用回転ツールFの終了位置(離脱位置)Ep1を周壁部311の上に設定することで、凹部313から離れた位置に攪拌ピンF2の抜き穴が形成されることになるため、液冷ジャケット301の水密性及び気密性を高めることができる。
Further, in the first friction stirring step, the end position (detachment position) Ep1 of the welding rotary tool F is set on the peripheral wall portion 311 so that a hole for the stirring pin F2 is formed at a position away from the recess 313. Therefore, the water tightness and air tightness of the liquid cooling jacket 301 can be improved.
また、本実施形態によれば、第二摩擦攪拌工程によって補助部材330にバリVが形成されるが、除去工程において補助部材330ごと取り除くことができる。これにより、バリVを除去する作業を容易に行うことができる。補助部材330は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材330を取り除くことができる。
Further, according to the present embodiment, the burr V is formed on the auxiliary member 330 by the second friction stirring step, but the auxiliary member 330 can be removed together in the removing step. Thereby, the operation | work which removes the burr | flash V can be performed easily. Although the auxiliary member 330 may use a removing device or the like, in the present embodiment, the auxiliary member 330 can be easily removed manually.
また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。また、接合用回転ツールFの攪拌ピンF2のみをジャケット本体302及び封止体303に接触させた状態で摩擦攪拌を行うため、突合せ部J31の深い位置まで攪拌ピンF2を挿入することができる。これにより、ジャケット本体302と封止体303とを好適に接合することができる。
Moreover, in this embodiment, since only the stirring pin F2 is brought into contact with the metal member to be joined, the load acting on the friction stirrer can be reduced as compared with the case where the shoulder portion of the rotary tool is brought into contact. Further, since the friction stir is performed in a state where only the stirring pin F2 of the rotating tool for joining F is in contact with the jacket main body 302 and the sealing body 303, the stirring pin F2 can be inserted to a deep position of the butt portion J31. Thereby, the jacket main body 302 and the sealing body 303 can be joined suitably.
また、図35に示すように、本実施形態に係る第二摩擦攪拌工程では進行方向右側に補助部材330を配置するとともに接合用回転ツールFを右回転させるため、補助部材330側がRe側となる。一方、Re側の反対側がAd側となる。
In addition, as shown in FIG. 35, in the second friction agitation process according to the present embodiment, the auxiliary member 330 is disposed on the right side in the traveling direction and the rotating tool F for rotation is rotated to the right, so the auxiliary member 330 side is the Re side. . On the other hand, the side opposite to the Re side is the Ad side.
例えば、接合用回転ツールFの回転速度が遅い場合では、塑性化領域W2のRe側に比べてAd側の方が塑性流動材の温度が上昇しやすくなるため、Ad側にバリVが多く発生する傾向にある。一方、例えば、接合用回転ツールFの回転速度が速い場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが多く発生する傾向にある。
For example, when the rotational speed of the rotating tool F for bonding is slow, the temperature of the plastic fluidized material is likely to rise more on the Ad side than on the Re side of the plasticizing region W2, so that more burrs V are generated on the Ad side. Tend to. On the other hand, for example, when the rotational speed of the bonding rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that more burrs V are generated on the Re side due to the higher rotational speed.
本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材330側にバリVが発生する。つまり、本実施形態ではバリVが補助部材330側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材330に形成されたバリVは、補助部材330ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。
In this embodiment, since the rotational speed of the joining rotary tool F is set to be high, a burr V is generated on the Re side, that is, the auxiliary member 330 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that many burrs V are formed on the auxiliary member 330 side. Thereby, since the burr | flash V formed in the auxiliary member 330 is removed with the auxiliary member 330, the burr | flash removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
上記したように、摩擦攪拌工程の際に、接合用回転ツールFの進行方向のどちら側にバリVが発生するかは接合条件によって異なる。当該接合条件とは、接合用回転ツールFの回転速度、回転方向、進行方向、移動速度(送り速度)、攪拌ピンF2の傾斜角度(テーパー角度)、ジャケット本体302、封止体303及び補助部材330の材料、各部材の厚さ等の各要素とこれらの要素の組み合わせで決定される。接合条件に応じて、バリVが発生する側又はバリVが多く発生する側に補助部材330を配置するようにすれば、バリ除去工程を容易に行うことができるため好ましい。
As described above, in the friction stirring step, which side of the traveling direction of the welding rotary tool F the burr V is generated varies depending on the joining conditions. The joining conditions include the rotational speed, rotational direction, traveling direction, moving speed (feed speed) of the rotating tool F for joining, the inclination angle (taper angle) of the stirring pin F2, the jacket body 302, the sealing body 303, and the auxiliary member. It is determined by each element such as 330 materials and the thickness of each member and the combination of these elements. It is preferable to arrange the auxiliary member 330 on the side where the burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
また、補助部材330にスリット332を設けているため、除去工程の際に、スリット332を起点に補助部材330を容易に除去することができる。
In addition, since the slit 332 is provided in the auxiliary member 330, the auxiliary member 330 can be easily removed from the slit 332 as a starting point during the removal process.
また、本実施形態に係る液冷ジャケット301によれば、厚さ寸法の大きい封止体303を用いるため、摩擦熱によって封止体303が変形するのを防ぐことができる。また、本実施形態の第二摩擦攪拌工程のように、塑性化領域W2の始端と終端側とを重複(オーバーラップ)させることで、液冷ジャケット301の水密性及び気密性をより高めることができる。
Further, according to the liquid cooling jacket 301 according to the present embodiment, since the sealing body 303 having a large thickness is used, it is possible to prevent the sealing body 303 from being deformed by frictional heat. Moreover, like the 2nd friction stirring process of this embodiment, the water-tightness and airtightness of the liquid cooling jacket 301 can be improved more by making the start end and terminal end side of the plasticization area | region W2 overlap (overlap). it can.
[第十実施形態]
次に、第十実施形態に係る液冷ジャケットの製造方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第十実施形態では、図38に示すように、補助部材440を封止体403の側面421cに面接触させる点で、第九実施形態と主に相違する。本実施形態に係る説明では、第九実施形態と相違する部分を中心に説明する。 [Tenth embodiment]
Next, a method for manufacturing the liquid cooling jacket according to the tenth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 38, the tenth embodiment is mainly different from the ninth embodiment in that theauxiliary member 440 is brought into surface contact with the side surface 421c of the sealing body 403. In the description according to the present embodiment, the description will focus on parts that are different from the ninth embodiment.
次に、第十実施形態に係る液冷ジャケットの製造方法について説明する。本実施形態に係る接合方法では、準備工程と、突合せ工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第十実施形態では、図38に示すように、補助部材440を封止体403の側面421cに面接触させる点で、第九実施形態と主に相違する。本実施形態に係る説明では、第九実施形態と相違する部分を中心に説明する。 [Tenth embodiment]
Next, a method for manufacturing the liquid cooling jacket according to the tenth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a butting process, an arranging process, a friction stirring process, and a removing process are performed. As shown in FIG. 38, the tenth embodiment is mainly different from the ninth embodiment in that the
準備工程は、第九実施形態と同等であるため説明を省略する。突合せ工程は、第九実施形態と同じ要領でジャケット本体402と封止体403とを突き合わせて突合せ部J41を形成する工程である。図38に示すように、周壁部411の端面411aと、封止体403の側面421cとで内隅が形成される。
Since the preparation process is the same as that of the ninth embodiment, description thereof is omitted. The butting process is a process of butting the jacket body 402 and the sealing body 403 in the same manner as in the ninth embodiment to form the butting portion J41. As shown in FIG. 38, an inner corner is formed by the end surface 411 a of the peripheral wall portion 411 and the side surface 421 c of the sealing body 403.
配置工程は、補助部材440を内隅に配置する工程である。補助部材440は、平面視矩形の中空部441を備えた枠状部材である。補助部材440の板厚は、後記する第二摩擦攪拌接合の際に、接合部が金属不足にならないように適宜設定される。中空部441は、本体部421の平面形状と同じ形状になっている。配置工程では、図39に示すように、補助部材440の端面を周壁部411の端面411aに当接させるとともに、補助部材440の内周面を本体部421の4つの側面421cに面接触させる。
The placement step is a step of placing the auxiliary member 440 in the inner corner. The auxiliary member 440 is a frame-like member having a hollow portion 441 that is rectangular in plan view. The plate thickness of the auxiliary member 440 is appropriately set so that the joining portion does not run out of metal during the second friction stir welding described later. The hollow part 441 has the same shape as the planar shape of the main body part 421. In the arranging step, as shown in FIG. 39, the end surface of the auxiliary member 440 is brought into contact with the end surface 411a of the peripheral wall portion 411, and the inner peripheral surface of the auxiliary member 440 is brought into surface contact with the four side surfaces 421c of the main body portion 421.
補助部材440の高さ寸法は、本体部421の側面421cのうち、外部に露出する部位の高さ寸法と同じになっている。本実施形態では、側面421cの全部が補助部材440で覆われるようになっているが、一部が覆われるようにしてもよい。
The height dimension of the auxiliary member 440 is the same as the height dimension of the portion of the side surface 421c of the main body 421 that is exposed to the outside. In the present embodiment, the entire side surface 421c is covered with the auxiliary member 440, but a part thereof may be covered.
摩擦攪拌工程は、図40及び図41に示すように、接合用回転ツールFを用いてジャケット本体402と封止体403とを摩擦攪拌接合する工程である。本実施形態に係る摩擦攪拌工程では、第一摩擦攪拌工程と、第二摩擦攪拌工程とを行う。第一摩擦攪拌工程は、第九実施形態と同等であるため詳細な説明は省略する。
The friction stirring step is a step of friction stir welding the jacket main body 402 and the sealing body 403 using the rotating tool F for bonding as shown in FIGS. 40 and 41. In the friction stirring process according to the present embodiment, a first friction stirring process and a second friction stirring process are performed. Since the first friction stirring step is the same as that of the ninth embodiment, detailed description thereof is omitted.
第二摩擦攪拌工程は、ジャケット本体402の周壁部411と封止体403とを接合用回転ツールFを用いて摩擦攪拌接合する工程である。まず、周壁部411の端面411aに設定した開始位置Sp2に左回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。そして、攪拌ピンF2が内隅に達したら図41に示すように、接合用回転ツールFの回転中心軸Fcを外側に傾斜させる。そして、傾斜させた状態で接合用回転ツールFを封止体403の周囲に亘って相対移動させて突合せ部J41を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W2が形成される。
The second friction stirring step is a step of performing friction stir welding between the peripheral wall portion 411 of the jacket body 402 and the sealing body 403 using the rotating tool F for bonding. First, the stirring pin F2 of the rotating tool F for rotation rotated to the left is inserted into the start position Sp2 set on the end surface 411a of the peripheral wall portion 411, and is relatively moved toward the inner corner. When the stirring pin F2 reaches the inner corner, as shown in FIG. 41, the rotation center axis Fc of the joining rotary tool F is inclined outward. Then, the rotating tool F for bonding is relatively moved over the periphery of the sealing body 403 in the inclined state, and the butt portion J41 is friction stir welded. A plasticized region W2 is formed in the movement locus of the welding rotary tool F.
第二摩擦攪拌工程では、突合せ部J41に左回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、ジャケット本体402、封止体403及び補助部材440と攪拌ピンF2とを接触させた状態で突合せ部J41に沿って接合用回転ツールFを相対移動させる。
In the second friction stirring step, only the stirring pin F2 rotated counterclockwise is inserted into the abutting portion J41, and the metal member to be joined and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. Then, the joining rotary tool F is relatively moved along the abutting portion J41 in a state where the jacket main body 402, the sealing body 403, and the auxiliary member 440 are in contact with the stirring pin F2.
本実施形態では、接合用回転ツールFの進行方向左側に補助部材440が位置するように接合用回転ツールFの進行方向を設定する。また、接合用回転ツールFの回転速度は、Re側にバリVが発生する程度に高速回転させる。攪拌ピンF2の挿入深さは、攪拌ピンF2と突合せ部J41とが接触するように設定すればよい。図40に示すように、接合用回転ツールFを封止体403の周囲に一周させて、塑性化領域W2をオーバーラップさせたら、周壁部411の端面411aに設定された終了位置Ep2で接合用回転ツールFを離脱させる。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 440 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the butt | matching part J41 may contact. As shown in FIG. 40, when the rotating tool F for welding is made to make a round around the sealing body 403 and the plasticized region W2 is overlapped, it is used for joining at the end position Ep2 set on the end surface 411a of the peripheral wall portion 411. Release the rotary tool F.
除去工程は、図42に示すように、補助部材440を封止体403から除去する工程である。除去工程では、封止体403の側面421cから離間する方向に補助部材440を折り曲げて、封止体403から補助部材440を除去する。以上の工程によって液冷ジャケット401が形成される。
The removing step is a step of removing the auxiliary member 440 from the sealing body 403 as shown in FIG. In the removing step, the auxiliary member 440 is bent in a direction away from the side surface 421c of the sealing body 403, and the auxiliary member 440 is removed from the sealing body 403. The liquid cooling jacket 401 is formed by the above process.
本実施形態に係る接合方法によれば、ジャケット本体402と封止体403とが接合されるとともに、ジャケット本体402と封止体403に加え、補助部材440も同時に摩擦攪拌接合することにより、接合部(塑性化領域W2)の金属不足を防ぐことができる。
According to the joining method according to the present embodiment, the jacket main body 402 and the sealing body 403 are joined, and in addition to the jacket main body 402 and the sealing body 403, the auxiliary member 440 is also simultaneously joined by friction stir welding. It is possible to prevent metal shortage in the portion (plasticization region W2).
また、本実施形態によれば、摩擦攪拌工程によって補助部材440にバリVが形成されるが、除去工程において補助部材440ごと取り除くことができる。これにより、バリVを除去する作業を容易に行うことができる。補助部材440は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材440を取り除くことができる。また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。
Further, according to the present embodiment, the burr V is formed on the auxiliary member 440 by the friction stirring process, but it can be removed together with the auxiliary member 440 in the removing process. Thereby, the operation | work which removes the burr | flash V can be performed easily. Although the auxiliary member 440 may use a removing device or the like, in the present embodiment, the auxiliary member 440 can be easily removed manually. Moreover, in this embodiment, since only the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
また、図41に示すように、本実施形態に係る第二摩擦攪拌工程では接合用回転ツールFの進行方向左側に補助部材440を配置するとともに、接合用回転ツールFを左回転させるため、補助部材440側がRe側となる。本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材440側にバリVが発生する。つまり、本実施形態ではバリVが補助部材440側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材440に形成されたバリVは、補助部材440ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。また、本実施形態の配置工程のように、封止体403の側面421cに沿うようにして、内隅に補助部材440を配置してもよい。
As shown in FIG. 41, in the second friction agitation process according to the present embodiment, the auxiliary member 440 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary rotating tool F is rotated counterclockwise. The member 440 side is the Re side. In the present embodiment, since the rotational speed of the joining rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 440 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 440 side. Thereby, since the burr | flash V formed in the auxiliary member 440 is removed with the auxiliary member 440, a burr | flash removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened. Moreover, you may arrange | position the auxiliary member 440 in an inner corner so that the side surface 421c of the sealing body 403 may be followed like the arrangement | positioning process of this embodiment.
以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲おいて適宜設計変更が可能である。例えば、前記した実施形態では、内隅の片側に補助部材を配置したが、内隅の両側に補助部材を配置してもよい。この場合の除去工程では、塑性化領域を挟だ両側において、バリが形成された補助部材をそれぞれ除去する。つまり、本発明に係る除去工程では、ジャケット本体402及び封止体403の少なくとも一方から補助部材を除去すればよい。
Although the embodiments of the present invention have been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the auxiliary member is arranged on one side of the inner corner, but the auxiliary member may be arranged on both sides of the inner corner. In the removing step in this case, auxiliary members on which burrs are formed are removed on both sides of the plasticized region. That is, in the removing process according to the present invention, the auxiliary member may be removed from at least one of the jacket main body 402 and the sealing body 403.
また、本実施形態では、支持部412に突出部412bを設けたが、突出部412bを省略して、支持部412と封止体403とを接合してもよい。また、本実施形態では、第一摩擦攪拌工程と、第二摩擦攪拌工程を不連続に行ったが、第一摩擦攪拌工程が終わったら、接合用回転ツールFを離脱させずに、そのまま第二摩擦攪拌工程を行ってもよい。これにより、接合サイクルをより高めることができる。
In the present embodiment, the protruding portion 412b is provided on the support portion 412, but the protruding portion 412b may be omitted and the support portion 412 and the sealing body 403 may be joined. Further, in the present embodiment, the first friction stirring step and the second friction stirring step are performed discontinuously. However, after the first friction stirring step is finished, the welding rotary tool F is not detached and the second friction stirring step is performed as it is. You may perform a friction stirring process. Thereby, a joining cycle can be raised more.
また、本実施形態では、液冷ジャケット401を外観視直方体としたが、例えば、外観視円柱状、他の断面多角形の柱状体としてもよい。
Further, in the present embodiment, the liquid cooling jacket 401 is a rectangular parallelepiped in appearance, but may be a columnar body having a cylindrical shape in appearance and other polygonal sections, for example.
[第十一実施形態]
本発明の第十一実施形態に係る液冷ジャケットの製造方法及び液冷ジャケットについて、図面を参照して詳細に説明する。本実施形態に係る液冷ジャケットの製造方法では、準備工程と、重合工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Eleventh embodiment]
A method for manufacturing a liquid cooling jacket and a liquid cooling jacket according to an eleventh embodiment of the present invention will be described in detail with reference to the drawings. In the manufacturing method of the liquid cooling jacket according to the present embodiment, a preparation process, a polymerization process, an arrangement process, a friction stirring process, and a removal process are performed.
本発明の第十一実施形態に係る液冷ジャケットの製造方法及び液冷ジャケットについて、図面を参照して詳細に説明する。本実施形態に係る液冷ジャケットの製造方法では、準備工程と、重合工程と、配置工程と、摩擦攪拌工程と、除去工程とを行う。 [Eleventh embodiment]
A method for manufacturing a liquid cooling jacket and a liquid cooling jacket according to an eleventh embodiment of the present invention will be described in detail with reference to the drawings. In the manufacturing method of the liquid cooling jacket according to the present embodiment, a preparation process, a polymerization process, an arrangement process, a friction stirring process, and a removal process are performed.
準備工程は、図43に示すように、ジャケット本体502と封止体503とを用意する工程である。ジャケット本体502は、底部510と、周壁部511と、支持部512とから構成されている。ジャケット本体502の材料は、摩擦攪拌可能な金属であればよいが、例えば、アルミニウム、アルミニウム合金、銅、銅合金、チタン、チタン合金、マグネシウム、マグネシウム合金等摩擦攪拌可能な金属で形成されている。ジャケット本体502は、上方が開口した箱状部材である。底部510は、平面視矩形を呈する。周壁部511は、底部510の周縁から立ち上っており、矩形枠状を呈する。
The preparation step is a step of preparing a jacket body 502 and a sealing body 503 as shown in FIG. The jacket main body 502 includes a bottom portion 510, a peripheral wall portion 511, and a support portion 512. The material of the jacket main body 502 may be a metal capable of friction stir, but is formed of a metal capable of friction stir, such as aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, magnesium alloy, and the like. . The jacket main body 502 is a box-shaped member that opens upward. The bottom 510 has a rectangular shape in plan view. The peripheral wall portion 511 rises from the periphery of the bottom portion 510 and has a rectangular frame shape.
周壁部511は、壁部511A,511B,511C,511Dで構成されている。壁部511A,511Bは互いに対向しており短辺部となっている。壁部511C,511Dは、互いに対向しており長辺部となっている。ジャケット本体502の内部には凹部513が形成されている。
The peripheral wall portion 511 includes wall portions 511A, 511B, 511C, and 511D. The walls 511A and 511B are opposed to each other and are short sides. The walls 511C and 511D are opposed to each other and are long sides. A recess 513 is formed inside the jacket body 502.
支持部512は、底部510から立ち上るとともに、周壁部511の壁部511Bから延設されている。支持部512は、周壁部511から離間して形成されていてもよいし、省略してもよい。支持部512の端面512aは、周壁部511の端面511aと面一になっている。支持部512の端面512aには、突出部512bが形成されている。突出部512bは、本実施形態では円柱状を呈する。突出部512bは、封止体503に嵌め合わされる部位である。
The support portion 512 rises from the bottom portion 510 and extends from the wall portion 511B of the peripheral wall portion 511. The support portion 512 may be formed away from the peripheral wall portion 511 or may be omitted. The end surface 512 a of the support portion 512 is flush with the end surface 511 a of the peripheral wall portion 511. A projecting portion 512 b is formed on the end surface 512 a of the support portion 512. The protrusion 512b has a columnar shape in the present embodiment. The protruding portion 512b is a portion that is fitted to the sealing body 503.
封止体503は、ジャケット本体502の開口部を覆う金属部材である。封止体503の材料は特に制限されないが、本実施形態では、ジャケット本体502と同じ材料で形成されている。封止体503は、平面視矩形状を呈する板状部材である。封止体503の裏面503bには、凹溝504が3つ形成されている。凹溝504は、突出部512bに対応する位置において、突出部512bが挿入されるように形成されている。凹溝504の中空部の形状は、本実施形態では円柱状を呈するが、突出部512bが挿入可能な形状であればよい。
The sealing body 503 is a metal member that covers the opening of the jacket body 502. The material of the sealing body 503 is not particularly limited, but is formed of the same material as that of the jacket body 502 in the present embodiment. The sealing body 503 is a plate-like member having a rectangular shape in plan view. Three concave grooves 504 are formed on the back surface 503 b of the sealing body 503. The concave groove 504 is formed so that the protruding portion 512b is inserted at a position corresponding to the protruding portion 512b. The hollow portion of the concave groove 504 has a columnar shape in the present embodiment, but may be any shape as long as the protruding portion 512b can be inserted.
重合工程は、図44に示すように、ジャケット本体502と封止体503とを重ね合わせる工程である。図45に示すように、重合工程では、周壁部511の端面511aに封止体503を載置する。周壁部511の端面511aと封止体503の裏面503bとが重ね合わされて重合部J51が形成される。重合部J51は、封止体503の全周に亘って形成される。また、周壁部511の端面511aと、封止体503の4つの側面503cとで内隅が形成される。また、重合工程では、支持部512の突出部512bに、封止体503の凹溝504を嵌め合わせる。これにより、嵌合部J52が形成される。
The polymerization step is a step of overlapping the jacket main body 502 and the sealing body 503 as shown in FIG. As shown in FIG. 45, in the polymerization process, the sealing body 503 is placed on the end surface 511 a of the peripheral wall portion 511. The end surface 511a of the peripheral wall portion 511 and the back surface 503b of the sealing body 503 are overlapped to form the overlapping portion J51. The overlapping portion J51 is formed over the entire circumference of the sealing body 503. In addition, an inner corner is formed by the end surface 511 a of the peripheral wall portion 511 and the four side surfaces 503 c of the sealing body 503. In the polymerization step, the concave groove 504 of the sealing body 503 is fitted into the protruding portion 512 b of the support portion 512. Thereby, the fitting part J52 is formed.
配置工程は、図46に示すように、ジャケット本体502に補助部材530を配置する工程である。補助部材530は、平面視矩形の中空部531が形成された板状部材である。補助部材530の板厚寸法は、後記する第二摩擦攪拌工程において接合部に金属不足が起こらない程度に適宜設定する。中空部531は、封止体503の平面形状と同じ形状になっている。補助部材530の材料は、摩擦攪拌可能な金属であれば特に制限されないが、本実施形態ではジャケット本体502及び封止体503と同じ材料になっている。補助部材530の一部には、幅方向に連続するスリット532が形成されている。
The placement step is a step of placing the auxiliary member 530 on the jacket body 502 as shown in FIG. The auxiliary member 530 is a plate-like member in which a hollow portion 531 having a rectangular shape in plan view is formed. The plate thickness dimension of the auxiliary member 530 is appropriately set to such an extent that a metal shortage does not occur at the joint in the second friction stirring step described later. The hollow portion 531 has the same shape as the planar shape of the sealing body 503. The material of the auxiliary member 530 is not particularly limited as long as it is a metal capable of friction stir, but in this embodiment, the material is the same as that of the jacket body 502 and the sealing body 503. A slit 532 continuous in the width direction is formed in a part of the auxiliary member 530.
配置工程では、図47に示すように、周壁部511の端面511aに補助部材530を配置する。これにより、端面511aは、補助部材530によって覆われる。補助部材530の内周縁は、封止体503の側面503cに面接触するか、若しくは微細な隙間をあけて配置される。なお、本実施形態では端面511aの全体を補助部材530で覆っているが、端面511aの一部が覆われるように補助部材530の大きさを調節してもよい。
In the arranging step, the auxiliary member 530 is arranged on the end surface 511a of the peripheral wall portion 511 as shown in FIG. Thereby, the end surface 511a is covered with the auxiliary member 530. The inner peripheral edge of the auxiliary member 530 is in surface contact with the side surface 503c of the sealing body 503 or is disposed with a fine gap. In the present embodiment, the entire end surface 511a is covered with the auxiliary member 530, but the size of the auxiliary member 530 may be adjusted so that a part of the end surface 511a is covered.
摩擦攪拌工程は、ジャケット本体502と封止体503とを接合用回転ツールFを用いて摩擦攪拌接合する工程である。接合用回転ツールFは、図48及び図49に示すように、連結部F1と、攪拌ピンF2とで構成されている。本実施形態では、接合用回転ツールFを右回転させるため、螺旋溝は、基端から先端に向かうにつれて左回りに形成されている。これにより、被接合金属部材(ジャケット本体502、封止体503及び補助部材530)の外部に溢れ出る金属の量を少なくすることができる。螺旋溝は省略してもよい。
The friction stir process is a process in which the jacket main body 502 and the sealing body 503 are friction stir welded using the joining rotary tool F. As shown in FIGS. 48 and 49, the joining rotary tool F includes a connecting portion F1 and a stirring pin F2. In the present embodiment, the spiral groove is formed in a counterclockwise direction from the proximal end toward the distal end in order to rotate the joining rotary tool F to the right. Thereby, the quantity of the metal which overflows outside the to-be-joined metal member (the jacket main body 502, the sealing body 503, and the auxiliary member 530) can be reduced. The spiral groove may be omitted.
本実施形態の摩擦攪拌工程では、第一摩擦攪拌工程と、第二摩擦攪拌工程とを行う。第一摩擦攪拌工程は、支持部512と封止体503とを接合する工程である。図48に示すように、第一摩擦攪拌工程では、封止体503の表面503aに設定した開始位置Sp1に、右回転させた接合用回転ツールFの攪拌ピンF2を挿入する。開始位置Sp1は突出部512bの外縁に対応する位置に設定する。
In the friction stirring step of the present embodiment, a first friction stirring step and a second friction stirring step are performed. The first friction stirring step is a step of joining the support portion 512 and the sealing body 503. As shown in FIG. 48, in the first friction stirring step, the stirring pin F2 of the rotating tool F for bonding rotated to the right is inserted into the start position Sp1 set on the surface 503a of the sealing body 503. The start position Sp1 is set to a position corresponding to the outer edge of the protruding portion 512b.
図49に示すように、第一摩擦攪拌工程では、攪拌ピンF2が突出部512bに達するか、若しくは攪拌ピンF2を封止体503のみに接触させた状態で突出部512bと凹溝504との嵌合部J52を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W1が形成される。接合用回転ツールFを突出部512b回りに一周以上させたら、接合用回転ツールFを離脱させる。同様の工程を各突出部512b(嵌合部J52)ごとに行う。なお、この際に、封止体503の表面503aに接合用回転ツールFの抜き穴が形成されるが、当該抜き穴に肉盛溶接を行って補修してもよい。もしくは、抜き穴が形成されないように接合用回転ツールFを相対移動させながら徐々に引き抜いてもよい。
As shown in FIG. 49, in the first friction stirring step, the stirring pin F2 reaches the protruding portion 512b, or the protruding portion 512b and the concave groove 504 are in contact with the stirring pin F2 only in the sealing body 503. The fitting portion J52 is friction stir welded. A plasticized region W1 is formed in the movement locus of the welding rotary tool F. When the rotating tool F for joining is made to make one or more rounds around the protruding portion 512b, the rotating tool F for joining is detached. The same process is performed for each protrusion 512b (fitting portion J52). At this time, a punch hole of the rotating tool F for bonding is formed on the surface 503a of the sealing body 503. However, the punch hole may be repaired by overlay welding. Alternatively, the joining rotary tool F may be gradually pulled out so as not to form a punched hole.
第二摩擦攪拌工程は、周壁部511と封止体503とを接合する工程である。図50に示すように、まず、補助部材530に設定した開始位置Sp2に右回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。攪拌ピンF2が内隅に達したら図51に示すように、接合用回転ツールFの回転中心軸Fcを封止体503に対して外側に傾斜させる。そして、接合用回転ツールFを傾斜させた状態で封止体503の周囲に亘って相対移動させて重合部J51を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W2が形成される。
The second friction stirring step is a step of joining the peripheral wall portion 511 and the sealing body 503. As shown in FIG. 50, first, the agitation pin F2 of the welding rotary tool F rotated to the right is inserted into the start position Sp2 set on the auxiliary member 530, and is relatively moved toward the inner corner. When the stirring pin F2 reaches the inner corner, as shown in FIG. 51, the rotation center axis Fc of the bonding rotary tool F is inclined outward with respect to the sealing body 503. And the superposition | polymerization part J51 is friction-stir-welded by making it relatively move over the circumference | surroundings of the sealing body 503 in the state which inclined the rotation tool F for joining. A plasticized region W2 is formed in the movement locus of the welding rotary tool F.
第二摩擦攪拌工程では、重合部J51に右回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、ジャケット本体502、封止体503及び補助部材530と攪拌ピンF2とを接触させた状態で重合部J51に沿って接合用回転ツールFを相対移動させる。
In the second friction stirring step, only the stirring pin F2 rotated to the right is inserted into the overlapping portion J51, and the bonded metal member and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. And the rotation tool F for joining is relatively moved along the superposition | polymerization part J51 in the state which contacted the jacket main body 502, the sealing body 503, the auxiliary member 530, and the stirring pin F2.
本実施形態では、接合用回転ツールFの進行方向右側に補助部材530が位置するように接合用回転ツールFの進行方向を設定する。接合用回転ツールFの回転方向及び進行方向は前記したものに限定されるものではなく適宜設定すればよい。例えば、接合用回転ツールFの進行方向右側に補助部材530を配置しつつ、接合用回転ツールFを左回転させてもよい。もしくは、接合用回転ツールFの進行方向左側に補助部材530を配置し、接合用回転ツールFを左右いずれかに回転させてもよい。接合用回転ツールFの回転方向等の条件と補助部材530との好ましい位置関係については後記する。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 530 is positioned on the right side in the traveling direction of the joining rotary tool F. The rotation direction and the traveling direction of the joining rotary tool F are not limited to those described above, and may be set as appropriate. For example, the joining rotary tool F may be rotated counterclockwise while the auxiliary member 530 is disposed on the right side in the traveling direction of the joining rotary tool F. Alternatively, the auxiliary member 530 may be arranged on the left side in the traveling direction of the joining rotary tool F, and the joining rotary tool F may be rotated to the left or right. The preferable positional relationship between the auxiliary member 530 and the conditions such as the rotation direction of the joining rotary tool F will be described later.
攪拌ピンF2の挿入深さは、攪拌ピンF2と重合部J51とが接触するように設定すればよい。図50に示すように、接合用回転ツールFを封止体503の周囲に一周させて、塑性化領域W2をオーバーラップさせたら、補助部材530に設定された終了位置Ep2で接合用回転ツールFを離脱させる。
The insertion depth of the stirring pin F2 may be set so that the stirring pin F2 and the overlapping portion J51 are in contact with each other. As shown in FIG. 50, when the joining rotary tool F is made to make a round around the sealing body 503 and the plasticizing region W2 is overlapped, the joining rotary tool F is set at the end position Ep2 set in the auxiliary member 530. To leave.
除去工程は、図52に示すように、補助部材530をジャケット本体502から除去する工程である。補助部材530は、スリット532(図50参照)を境にして補助部材530の端部をめくり上げるとともに、図53に示すように、周壁部511の端面511aから離間する方向に補助部材530を折り曲げて、周壁部511から補助部材530を除去する。以上の製造方法によって液冷ジャケット501が形成される。
The removing step is a step of removing the auxiliary member 530 from the jacket main body 502, as shown in FIG. The auxiliary member 530 turns up the end of the auxiliary member 530 with the slit 532 (see FIG. 50) as a boundary, and bends the auxiliary member 530 in a direction away from the end surface 511a of the peripheral wall 511 as shown in FIG. Then, the auxiliary member 530 is removed from the peripheral wall portion 511. The liquid cooling jacket 501 is formed by the above manufacturing method.
液冷ジャケット501は、中空部を備えた金属製の中空部材である。液冷ジャケット501の中空部に熱輸送流体(例えば、水)を流通させることにより、ジャケット本体502又は封止体503に設置された発熱体(図示省略)と熱交換を行うことができる。
The liquid cooling jacket 501 is a metal hollow member having a hollow portion. By circulating a heat transport fluid (for example, water) through the hollow portion of the liquid cooling jacket 501, heat exchange can be performed with a heating element (not shown) installed in the jacket body 502 or the sealing body 503.
以上説明した液冷ジャケットの製造方法及び液冷ジャケットによれば、内隅に補助部材530を配置して、ジャケット本体502と封止体503に加え補助部材530も同時に摩擦攪拌することにより接合部(塑性化領域W2)の金属不足を防ぐことができる。また、除去工程によって、補助部材530ごとバリVを除去することができるため、バリVを容易に除去することができる。
According to the manufacturing method and the liquid cooling jacket of the liquid cooling jacket described above, the auxiliary member 530 is disposed in the inner corner, and the auxiliary member 530 is simultaneously frictionally stirred in addition to the jacket main body 502 and the sealing body 503 to thereby join the joint portion. It is possible to prevent metal shortage in (plasticized region W2). Further, since the burr V can be removed together with the auxiliary member 530 by the removing step, the burr V can be easily removed.
また、第二摩擦攪拌工程では、接合用回転ツールFの回転中心軸Fcを外側に傾斜させた状態で摩擦攪拌を行うことにより、接合用回転ツールFを内隅に容易に挿入することができる。また、支持部512は省略してもよいが、本実施形態のように支持部512を設け、支持部512(突出部512b)と封止体503とを接合することで、液冷ジャケット501の強度を高めることができる。また、重合工程において、支持部512の突出部512bを封止体503の凹溝504に嵌め合わせるようにしたため、封止体503の位置決め作業を容易に行うことができる。また、第一摩擦攪拌工程において封止体503の位置ずれを防ぐことができる。
In the second friction agitation step, the agitation rotating tool F can be easily inserted into the inner corner by performing friction agitation while the rotation center axis Fc of the agitation rotating tool F is inclined outward. . Although the support portion 512 may be omitted, the support portion 512 is provided as in the present embodiment, and the support portion 512 (protruding portion 512b) and the sealing body 503 are joined to each other, so that the liquid cooling jacket 501 Strength can be increased. Further, in the polymerization process, the projecting portion 512b of the support portion 512 is fitted into the concave groove 504 of the sealing body 503, so that the positioning operation of the sealing body 503 can be easily performed. Moreover, the position shift of the sealing body 503 can be prevented in the first friction stirring step.
また、本実施形態によれば、第二摩擦攪拌工程によって補助部材530にバリVが形成されるが、除去工程において補助部材530ごと取り除くことができる。補助部材530は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材530を取り除くことができる。
Moreover, according to this embodiment, the burr | flash V is formed in the auxiliary member 530 by the 2nd friction stirring process, However It can remove with the auxiliary member 530 in a removal process. Although the auxiliary member 530 may use a removing device or the like, in this embodiment, the auxiliary member 530 can be easily removed manually.
また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。また、接合用回転ツールFの攪拌ピンF2のみをジャケット本体502及び封止体503に接触させた状態で摩擦攪拌を行うため、重合部J51の深い位置まで攪拌ピンF2を挿入することができる。これにより、ジャケット本体502と封止体503とを好適に接合することができる。
Moreover, in this embodiment, since only the stirring pin F2 is brought into contact with the metal member to be joined, the load acting on the friction stirrer can be reduced as compared with the case where the shoulder portion of the rotary tool is brought into contact. In addition, since the friction stir is performed in a state where only the stirring pin F2 of the bonding rotary tool F is in contact with the jacket main body 502 and the sealing body 503, the stirring pin F2 can be inserted to a deep position of the overlapping portion J51. Thereby, the jacket main body 502 and the sealing body 503 can be joined suitably.
また、図51に示すように、本実施形態に係る第二摩擦攪拌工程では進行方向右側に補助部材530を配置するとともに接合用回転ツールFを右回転させるため、補助部材530側がRe側となる。一方、Re側の反対側がAd側となる。例えば、接合用回転ツールFの回転速度が遅い場合では、塑性化領域W2のRe側に比べてAd側の方が塑性流動材の温度が上昇しやすくなるため、Ad側にバリVが多く発生する傾向にある。一方、例えば、接合用回転ツールFの回転速度が速い場合、Ad側の方が塑性流動材の温度が上昇するものの、回転速度が速い分、Re側にバリVが多く発生する傾向にある。
Further, as shown in FIG. 51, in the second friction stirring step according to the present embodiment, the auxiliary member 530 is disposed on the right side in the traveling direction and the rotating tool F for rotation is rotated to the right, so that the auxiliary member 530 side is the Re side. . On the other hand, the side opposite to the Re side is the Ad side. For example, when the rotational speed of the rotating tool F for bonding is slow, the temperature of the plastic fluidized material is likely to rise more on the Ad side than on the Re side of the plasticizing region W2, so that more burrs V are generated on the Ad side. Tend to. On the other hand, for example, when the rotational speed of the bonding rotary tool F is high, the temperature of the plastic fluidized material increases on the Ad side, but there is a tendency that more burrs V are generated on the Re side due to the higher rotational speed.
本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材530側にバリVが発生する。つまり、本実施形態ではバリVが補助部材530側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材530に形成されたバリVは、補助部材530ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。
In this embodiment, since the rotational speed of the joining rotary tool F is set to be high, burrs V are generated on the Re side, that is, on the auxiliary member 530 side. That is, in the present embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the bonding rotary tool F are set so that many burrs V are formed on the auxiliary member 530 side. Thereby, since the burr | flash V formed in the auxiliary member 530 is removed with the auxiliary member 530, a burr | flash removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened.
上記したように、摩擦攪拌工程の際に、接合用回転ツールFの進行方向のどちら側にバリVが発生するかは接合条件によって異なる。当該接合条件とは、接合用回転ツールFの回転速度、回転方向、進行方向移動速度(送り速度)、攪拌ピンF2の傾斜角度(テーパー角度)、ジャケット本体502、封止体503及び補助部材530の材料、各部材の厚さ等の各要素とこれらの要素の組み合わせで決定される。接合条件に応じて、バリVが発生する側又はバリVが多く発生する側に補助部材530を配置するようにすれば、バリ除去工程を容易に行うことができるため好ましい。
As described above, in the friction stirring step, which side of the traveling direction of the welding rotary tool F the burr V is generated varies depending on the joining conditions. The joining conditions include the rotational speed of the joining rotary tool F, the rotational direction, the traveling direction moving speed (feed speed), the inclination angle (taper angle) of the stirring pin F2, the jacket body 502, the sealing body 503, and the auxiliary member 530. The material, the thickness of each member, etc., and the combination of these elements. It is preferable to arrange the auxiliary member 530 on the side where the burrs V are generated or on the side where many burrs V are generated, depending on the joining conditions, because the burr removing step can be easily performed.
また、補助部材530にスリット532を設けているため、除去工程の際に、スリット532を起点に補助部材530を容易に除去することができる。また、本実施形態の第二摩擦攪拌工程ように、塑性化領域W2の始端と終端側とを重複(オーバーラップ)させることで、液冷ジャケット501の水密性及び気密性をより高めることができる。
In addition, since the slit 532 is provided in the auxiliary member 530, the auxiliary member 530 can be easily removed from the slit 532 as a starting point in the removal process. Moreover, the water-tightness and airtightness of the liquid cooling jacket 501 can be further improved by overlapping (overlapping) the start end and the end side of the plasticizing region W2 as in the second friction stirring step of the present embodiment. .
[第十二実施形態]
次に、第十二実施形態に係る液冷ジャケットの製造方法について説明する。本実施形態に係る接合方法では、準備工程と、重合工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第十二実施形態では、図54に示すように、補助部材540を封止体503の側面503cに面接触させる点で、第十一実施形態と主に相違する。本実施形態に係る説明では、第十一実施形態と相違する部分を中心に説明する。 [Twelfth embodiment]
Next, a method for manufacturing the liquid cooling jacket according to the twelfth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a polymerization process, an arrangement process, a friction stirring process, and a removal process are performed. As shown in FIG. 54, the twelfth embodiment is mainly different from the eleventh embodiment in that theauxiliary member 540 is in surface contact with the side surface 503c of the sealing body 503. In the description according to the present embodiment, the description will focus on parts that are different from the eleventh embodiment.
次に、第十二実施形態に係る液冷ジャケットの製造方法について説明する。本実施形態に係る接合方法では、準備工程と、重合工程と、配置工程と、摩擦攪拌工程と、除去工程と、を行う。第十二実施形態では、図54に示すように、補助部材540を封止体503の側面503cに面接触させる点で、第十一実施形態と主に相違する。本実施形態に係る説明では、第十一実施形態と相違する部分を中心に説明する。 [Twelfth embodiment]
Next, a method for manufacturing the liquid cooling jacket according to the twelfth embodiment will be described. In the joining method according to the present embodiment, a preparation process, a polymerization process, an arrangement process, a friction stirring process, and a removal process are performed. As shown in FIG. 54, the twelfth embodiment is mainly different from the eleventh embodiment in that the
準備工程は、第十一実施形態と同等であるため説明を省略する。重合工程は、第十一実施形態と同じ要領でジャケット本体502と封止体503とを突き合わせて重合部J51を形成する工程である。図54に示すように、周壁部511の端面511aと、封止体503の側面503cとで内隅が形成される。
Since the preparation process is the same as that of the eleventh embodiment, the description thereof is omitted. A superposition | polymerization process is a process of abutting the jacket main body 502 and the sealing body 503 in the same way as 11th embodiment, and forming the superposition | polymerization part J51. As shown in FIG. 54, an inner corner is formed by the end surface 511a of the peripheral wall portion 511 and the side surface 503c of the sealing body 503.
配置工程は、補助部材540を内隅に配置する工程である。補助部材540は、平面視矩形の中空部541を備えた枠状部材である。補助部材540には、高さ方向に連続するスリット542が形成されている。補助部材540の板厚は、後記する第二摩擦攪拌接合の際に、接合部が金属不足にならないように適宜設定される。中空部541は、封止体503の平面形状と同じ形状になっている。配置工程では、図55に示すように、補助部材540の端面を周壁部511の端面511aに当接させるとともに、補助部材540の内周面を封止体503の4つの側面503cに面接触させる。
The placement step is a step of placing the auxiliary member 540 in the inner corner. The auxiliary member 540 is a frame-like member provided with a hollow portion 541 that is rectangular in plan view. The auxiliary member 540 has a slit 542 that is continuous in the height direction. The plate thickness of the auxiliary member 540 is appropriately set so that the joined portion does not run out of metal during the second friction stir welding described later. The hollow part 541 has the same shape as the planar shape of the sealing body 503. In the arranging step, as shown in FIG. 55, the end surface of the auxiliary member 540 is brought into contact with the end surface 511a of the peripheral wall portion 511, and the inner peripheral surface of the auxiliary member 540 is brought into surface contact with the four side surfaces 503c of the sealing body 503. .
補助部材540の高さ寸法は、封止体503の側面503cの高さ寸法と同じになっている。本実施形態では、側面503cの全部が補助部材540で覆われるようになっているが、一部が覆われるようにしてもよい。
The height dimension of the auxiliary member 540 is the same as the height dimension of the side surface 503c of the sealing body 503. In the present embodiment, the entire side surface 503c is covered with the auxiliary member 540, but a part thereof may be covered.
摩擦攪拌工程は、図56及び図57に示すように、接合用回転ツールFを用いてジャケット本体502と封止体503とを摩擦攪拌接合する工程である。本実施形態に係る摩擦攪拌工程では、第一摩擦攪拌工程と、第二摩擦攪拌工程とを行う。第一摩擦攪拌工程は、第十一実施形態と同等であるため詳細な説明は省略する。
The friction stir step is a step of friction stir welding the jacket main body 502 and the sealing body 503 using the rotating tool F for bonding, as shown in FIGS. In the friction stirring process according to the present embodiment, a first friction stirring process and a second friction stirring process are performed. Since the first friction stirring step is equivalent to the eleventh embodiment, detailed description thereof is omitted.
第二摩擦攪拌工程は、ジャケット本体502の周壁部511と封止体503とを接合用回転ツールFを用いて摩擦攪拌接合する工程である。まず、周壁部511の端面511aに設定した開始位置Sp2に左回転させた接合用回転ツールFの攪拌ピンF2を挿入し、内隅に向けて相対移動させる。そして、攪拌ピンF2が内隅に達したら図57に示すように、接合用回転ツールFの回転中心軸Fcを外側に傾斜させる。そして、傾斜させた状態で接合用回転ツールFを封止体503の周囲に亘って相対移動させて重合部J51を摩擦攪拌接合する。接合用回転ツールFの移動軌跡には、塑性化領域W2が形成される。
The second friction stirring step is a step of friction stir welding the peripheral wall portion 511 of the jacket main body 502 and the sealing body 503 using the rotating tool F for bonding. First, the stirring pin F2 of the rotating tool F for welding rotated to the left is inserted into the start position Sp2 set on the end surface 511a of the peripheral wall portion 511, and is relatively moved toward the inner corner. When the stirring pin F2 reaches the inner corner, as shown in FIG. 57, the rotation center axis Fc of the joining rotary tool F is inclined outward. And the superposition | polymerization part J51 is friction-stir-welded by relatively moving the rotary tool F for joining over the circumference | surroundings of the sealing body 503 in the inclined state. A plasticized region W2 is formed in the movement locus of the welding rotary tool F.
第二摩擦攪拌工程では、重合部J51に左回転させた攪拌ピンF2のみを挿入し、被接合金属部材と連結部F1とは離間させつつ相対移動させる。言い換えると、攪拌ピンF2の基端部は露出させた状態で摩擦攪拌接合を行う。そして、ジャケット本体502、封止体503及び補助部材540と攪拌ピンF2とを接触させた状態で重合部J51に沿って接合用回転ツールFを相対移動させる。
In the second friction stirring step, only the stirring pin F2 rotated counterclockwise is inserted into the overlapping portion J51, and the bonded metal member and the connecting portion F1 are moved relative to each other while being separated. In other words, the friction stir welding is performed with the base end portion of the stirring pin F2 exposed. And the rotation tool F for joining is relatively moved along the superposition | polymerization part J51 in the state which contacted the jacket main body 502, the sealing body 503, the auxiliary member 540, and the stirring pin F2.
本実施形態では、接合用回転ツールFの進行方向左側に補助部材540が位置するように接合用回転ツールFの進行方向を設定する。また、接合用回転ツールFの回転速度は、Re側にバリVが発生する程度に高速回転させる。攪拌ピンF2の挿入深さは、攪拌ピンF2と重合部J51とが接触するように設定すればよい。図56に示すように、接合用回転ツールFを封止体503の周囲に一周させて、塑性化領域W2をオーバーラップさせたら、周壁部511の端面511aに設定された終了位置Ep2で接合用回転ツールFを離脱させる。
In this embodiment, the traveling direction of the joining rotary tool F is set so that the auxiliary member 540 is positioned on the left side in the traveling direction of the joining rotary tool F. Further, the rotational speed of the joining rotary tool F is rotated at such a high speed that burrs V are generated on the Re side. What is necessary is just to set the insertion depth of the stirring pin F2 so that the stirring pin F2 and the superposition | polymerization part J51 may contact. As shown in FIG. 56, when the rotating tool F for welding is made to make a round around the sealing body 503 and the plasticized region W2 is overlapped, it is used for joining at the end position Ep2 set on the end surface 511a of the peripheral wall portion 511. Release the rotary tool F.
除去工程は、図58に示すように、補助部材540を封止体503から除去する工程である。除去工程では、封止体503の側面503cから離間する方向に補助部材540を折り曲げて、封止体503から補助部材540を除去する。以上の工程によって液冷ジャケット501が形成される。
The removing step is a step of removing the auxiliary member 540 from the sealing body 503 as shown in FIG. In the removing step, the auxiliary member 540 is bent in a direction away from the side surface 503c of the sealing body 503, and the auxiliary member 540 is removed from the sealing body 503. The liquid cooling jacket 501 is formed by the above process.
本実施形態に係る接合方法によれば、ジャケット本体502と封止体503とが接合されるとともに、ジャケット本体502と封止体503に加え、補助部材540も同時に摩擦攪拌接合することにより、接合部(塑性化領域W2)の金属不足を防ぐことができる。
According to the joining method according to the present embodiment, the jacket body 502 and the sealing body 503 are joined, and in addition to the jacket body 502 and the sealing body 503, the auxiliary member 540 is also joined by friction stir welding at the same time. It is possible to prevent metal shortage in the portion (plasticization region W2).
また、本実施形態によれば、摩擦攪拌工程によって補助部材540にバリVが形成されるが、除去工程において補助部材540ごと取り除くことができる。これにより、バリVを除去する作業を容易に行うことができる。補助部材540は除去装置等を用いてもよいが、本実施形態では手作業で容易に補助部材540を取り除くことができる。また、本実施形態では、攪拌ピンF2のみを被接合金属部材に接触させるため、回転ツールのショルダ部を接触させる場合に比べて摩擦攪拌装置に作用する負荷を低減することができる。
Further, according to the present embodiment, the burr V is formed on the auxiliary member 540 by the friction stirring process, but it can be removed together with the auxiliary member 540 in the removing process. Thereby, the operation | work which removes the burr | flash V can be performed easily. Although the auxiliary member 540 may use a removing device or the like, in the present embodiment, the auxiliary member 540 can be easily removed manually. Moreover, in this embodiment, since only the stirring pin F2 is made to contact with a to-be-joined metal member, the load which acts on a friction stirring apparatus can be reduced compared with the case where the shoulder part of a rotary tool is made to contact.
また、図57に示すように、本実施形態に係る第二摩擦攪拌工程では接合用回転ツールFの進行方向左側に補助部材540を配置するとともに、接合用回転ツールFを左回転させるため、補助部材540側がRe側となる。本実施形態では、接合用回転ツールFの回転速度を速く設定しているため、Re側即ち補助部材540側にバリVが発生する。つまり、本実施形態ではバリVが補助部材540側に多く形成されるように接合用回転ツールFの回転速度、回転方向及び進行方向等を設定している。これにより、補助部材540に形成されたバリVは、補助部材540ごと除去されるため、バリ除去工程をより容易に行うことができる。また、接合用回転ツールFの回転速度を速く設定することにより、接合用回転ツールFの移動速度(送り速度)を高めることができる。これにより、接合サイクルを短くすることができる。また、本実施形態の配置工程のように、封止体503の側面503cに沿うようにして、内隅に補助部材540を配置してもよい。
As shown in FIG. 57, in the second friction stirring step according to the present embodiment, the auxiliary member 540 is disposed on the left side in the traveling direction of the welding rotary tool F, and the auxiliary rotary tool F is rotated counterclockwise. The member 540 side is the Re side. In the present embodiment, since the rotation speed of the joining rotary tool F is set to be high, a burr V is generated on the Re side, that is, the auxiliary member 540 side. That is, in this embodiment, the rotational speed, the rotational direction, the traveling direction, and the like of the joining rotary tool F are set so that many burrs V are formed on the auxiliary member 540 side. Thereby, since the burr | flash V formed in the auxiliary member 540 is removed with the auxiliary member 540, a burr removal process can be performed more easily. Moreover, the moving speed (feeding speed) of the joining rotary tool F can be increased by setting the rotational speed of the joining rotary tool F faster. Thereby, a joining cycle can be shortened. Moreover, you may arrange | position the auxiliary member 540 in an inner corner so that the side surface 503c of the sealing body 503 may be followed like the arrangement | positioning process of this embodiment.
以上本発明の実施形態について説明したが、本発明の趣旨に反しない範囲おいて適宜設計変更が可能である。例えば、前記した実施形態では、内隅の片側に補助部材を配置したが、内隅の両側に補助部材を配置してもよい。この場合の除去工程では、塑性化領域を挟だ両側において、バリが形成された補助部材をそれぞれ除去する。つまり、本発明に係る除去工程では、ジャケット本体502及び封止体503の少なくとも一方から補助部材を除去すればよい。
Although the embodiments of the present invention have been described above, design changes can be made as appropriate without departing from the spirit of the present invention. For example, in the above-described embodiment, the auxiliary member is arranged on one side of the inner corner, but the auxiliary member may be arranged on both sides of the inner corner. In the removing step in this case, auxiliary members on which burrs are formed are removed on both sides of the plasticized region. That is, in the removing step according to the present invention, the auxiliary member may be removed from at least one of the jacket main body 502 and the sealing body 503.
また、本実施形態では、支持部512に突出部512bを設けたが、突出部512bを省略して、支持部512と封止体503とを接合してもよい。また、本実施形態では、液冷ジャケット501を外観視直方体としたが、例えば、外観視円柱状、他の断面多角形の柱状体としてもよい。また、封止体503の裏面に複数のフィンを設けてもよい。フィンが形成されることで、熱交換効率を高めることができる。
In the present embodiment, the protrusion 512b is provided on the support 512, but the protrusion 512b may be omitted and the support 512 and the sealing body 503 may be joined. In the present embodiment, the liquid cooling jacket 501 is a rectangular parallelepiped in appearance, but may be a columnar body having a cylindrical shape in appearance and other polygonal sections, for example. A plurality of fins may be provided on the back surface of the sealing body 503. The heat exchange efficiency can be increased by forming the fins.
1 第一金属部材
2 第二金属部材
10 補助部材
20 補助部材
F 接合用回転ツール(回転ツール)
F1 連結部
F2 攪拌ピン
J1 突合せ部
J2 突合せ部
V バリ
W 塑性化領域 DESCRIPTION OFSYMBOLS 1 1st metal member 2 2nd metal member 10 Auxiliary member 20 Auxiliary member F Rotating tool for rotation (rotary tool)
F1 connecting part F2 stirring pin J1 butt part J2 butt part V burr W plasticization region
2 第二金属部材
10 補助部材
20 補助部材
F 接合用回転ツール(回転ツール)
F1 連結部
F2 攪拌ピン
J1 突合せ部
J2 突合せ部
V バリ
W 塑性化領域 DESCRIPTION OF
F1 connecting part F2 stirring pin J1 butt part J2 butt part V burr W plasticization region
Claims (24)
- 攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材と前記第二金属部材とを断面略L字状又は略T字状に突き合わせて突合せ部を形成する突合せ工程と、
前記第一金属部材と前記第二金属部材との内隅において、前記第一金属部材又は前記第二金属部材に面接触するように補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記内隅に挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記内隅に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。 A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
A butting step of butting the first metal member and the second metal member into a substantially L-shaped or substantially T-shaped cross section to form a butting portion;
An arrangement step of arranging an auxiliary member so as to make surface contact with the first metal member or the second metal member at an inner corner of the first metal member and the second metal member;
The rotating agitating pin is inserted into the inner corner, and the rotating tool is relatively moved along the inner corner with only the agitating pin in contact with the first metal member, the second metal member and the auxiliary member. A friction stirring step of moving and joining the first metal member, the second metal member, and the auxiliary member. - バリが形成された前記補助部材を前記第一金属部材又は前記第二金属部材から除去する除去工程を含むことを特徴とする請求項1に記載の接合方法。 2. The joining method according to claim 1, further comprising a removing step of removing the auxiliary member on which the burr is formed from the first metal member or the second metal member.
- 前記摩擦攪拌工程では、摩擦攪拌接合で発生するバリが前記補助部材に形成されるように接合条件を設定することを特徴とする請求項2に記載の接合方法。 3. The joining method according to claim 2, wherein in the friction stir step, joining conditions are set so that burrs generated in the friction stir welding are formed on the auxiliary member.
- 攪拌ピンを備えた回転ツールを用いて第一金属部材と第二金属部材とを接合する接合方法であって、
前記第一金属部材と前記第二金属部材とを断面略L字状又は略T字状に突き合わせて突合せ部を形成する突合せ工程と、
前記第一金属部材と前記第二金属部材との内隅において、前記第一金属部材及び前記第二金属部材に面接触するように断面略L字状の補助部材を配置する配置工程と、
回転する前記攪拌ピンを前記補助部材の内隅に挿入し、前記攪拌ピンのみを前記第一金属部材、前記第二金属部材及び前記補助部材に接触させた状態で前記内隅に沿って前記回転ツールを相対移動させて前記第一金属部材、前記第二金属部材及び前記補助部材を接合する摩擦攪拌工程と、を含むことを特徴とする接合方法。 A joining method for joining the first metal member and the second metal member using a rotary tool equipped with a stirring pin,
A butting step of butting the first metal member and the second metal member into a substantially L-shaped or substantially T-shaped cross section to form a butting portion;
An arrangement step of disposing an auxiliary member having a substantially L-shaped cross section so as to make surface contact with the first metal member and the second metal member at the inner corners of the first metal member and the second metal member;
The rotating stirring pin is inserted into the inner corner of the auxiliary member, and only the stirring pin is in contact with the first metal member, the second metal member, and the auxiliary member, and the rotation is performed along the inner corner. A friction stirring step of joining the first metal member, the second metal member, and the auxiliary member by relatively moving a tool. - 前記摩擦攪拌工程によって分断されるとともにバリが形成された前記補助部材を前記第一金属部材及び前記第二金属部材から除去する除去工程と、を含むことを特徴とする請求項4に記載の接合方法。 5. A joining step according to claim 4, further comprising a removing step of removing the auxiliary member, which has been divided by the friction stirring step and formed with burrs, from the first metal member and the second metal member. Method.
- 攪拌ピンを備えた回転ツールを用いて、突き合わされる面の形状が互いに異なる二つの金属部材を接合する接合方法であって、
一方の前記金属部材と他方の前記金属部材とを突き合わせて突合せ部を形成する突合せ工程と、
他方の前記金属部材の周方向に亘って、前記金属部材同士の内隅に補助部材を配置する配置工程と、
回転した前記攪拌ピンを前記内隅に挿入し、前記攪拌ピンのみを前記金属部材同士及び前記補助部材に接触させた状態で、他方の前記金属部材の周方向に亘って前記突合せ部の摩擦攪拌を行う摩擦攪拌工程と、
前記補助部材を一方の前記金属部材及び他方の前記金属部材の少なくとも一方から除去する除去工程と、を含むことを特徴とする接合方法。 Using a rotary tool equipped with a stirring pin, a joining method for joining two metal members having different shapes of surfaces to be abutted with each other,
A butting step of butting one metal member and the other metal member to form a butting portion;
An arrangement step of arranging an auxiliary member at an inner corner between the metal members over the circumferential direction of the other metal member;
The rotated stirring pin is inserted into the inner corner, and only the stirring pin is in contact with the metal members and the auxiliary member, and the friction stir of the butted portion is performed over the circumferential direction of the other metal member. A friction stirring step,
And a removing step of removing the auxiliary member from at least one of the one metal member and the other metal member. - 前記摩擦攪拌工程では、摩擦攪拌で発生するバリが前記補助部材に形成されるように、接合条件を設定することを特徴とする請求項6に記載の接合方法。 The joining method according to claim 6, wherein in the friction stirring step, joining conditions are set so that burrs generated by friction stirring are formed on the auxiliary member.
- 前記金属部材は、いずれも板状を呈し、
前記突合せ工程では、一方の前記金属部材の表面と他方の前記金属部材の裏面とを突き合わせることを特徴とする請求項6又は請求項7に記載の接合方法。 Each of the metal members has a plate shape,
The joining method according to claim 6 or 7, wherein, in the butting step, a surface of one of the metal members and a back surface of the other metal member are butted together. - 一方の前記金属部材は、板状を呈し、
他方の前記金属部材は、円柱状を呈し、
前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることを特徴とする請求項6又は請求項7に記載の接合方法。 One of the metal members has a plate shape,
The other metal member has a cylindrical shape,
The joining method according to claim 6 or 7, wherein, in the butting step, a surface of one of the metal members and an end surface of the other metal member are butted together. - 一方の前記金属部材は、板状を呈し、
他方の前記金属部材は、筒状を呈し、
前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることを特徴とする請求項6又は請求項7に記載の接合方法。 One of the metal members has a plate shape,
The other metal member has a cylindrical shape,
The joining method according to claim 6 or 7, wherein, in the butting step, a surface of one of the metal members and an end surface of the other metal member are butted together. - 一方の前記金属部材は、板状を呈し、
他方の前記金属部材は、円筒状を呈し、
前記突合せ工程では、一方の前記金属部材の表面と他方の金属部材の端面とを突き合わせることを特徴とする請求項6又は請求項7に記載の接合方法。 One of the metal members has a plate shape,
The other metal member has a cylindrical shape,
The joining method according to claim 6 or 7, wherein, in the butting step, a surface of one of the metal members and an end surface of the other metal member are butted together. - 一方の前記金属部材に貫通孔が形成されており、
前記突合せ工程では、前記貫通孔を他方の前記金属部材で覆うことを特徴とする請求項6又は請求項7に記載の接合方法。 A through hole is formed in one of the metal members,
The joining method according to claim 6 or 7, wherein in the butting step, the through hole is covered with the other metal member. - 一方の前記金属部材に貫通孔が形成されており、
前記突合せ工程では、前記貫通孔と他方の前記金属部材の中空部とを連通させることを特徴とする請求項10に記載の接合方法。 A through hole is formed in one of the metal members,
The joining method according to claim 10, wherein in the abutting step, the through hole and the hollow portion of the other metal member are communicated with each other. - 一方の前記金属部材に貫通孔が形成されており、
前記突合せ工程では、前記貫通孔と他方の前記金属部材の中空部とを連通させることを特徴とする請求項11に記載の接合方法。 A through hole is formed in one of the metal members,
The joining method according to claim 11, wherein in the abutting step, the through hole and the hollow portion of the other metal member are communicated with each other. - 熱輸送流体が流れる凹部を有するジャケット本体と、前記凹部の開口部を封止する封止体とで構成される液冷ジャケットの製造方法であって、
前記封止体を準備するとともに、底部と前記底部の周縁から立ち上る枠状の周壁部とを有し、前記周壁部の端面よりも一段下がった位置に形成された段差底面と、前記段差底面から立ち上る段差側面とを備えた前記ジャケット本体を準備する準備工程と、
前記段差側面の高さ寸法よりも大きい厚さ寸法の前記封止体を前記段差底面に載置して、前記段差側面と前記封止体の側面とが突き合わされた突合せ部を形成する突合せ工程と、
前記周壁部の端面と前記封止体の側面とで構成された内隅に補助部材を配置する配置工程と、
前記内隅に攪拌ピンを備えた回転ツールを挿入し、前記攪拌ピンのみを前記ジャケット本体、前記封止体及び前記補助部材に接触させた状態で前記突合せ部に摩擦攪拌を行う摩擦攪拌工程と、
バリが形成された前記補助部材を前記ジャケット本体及び前記封止体の少なくとも一方から除去する除去工程と、を含み、
前記摩擦攪拌工程では、前記内隅に沿って前記回転ツールを前記封止体の回りに一周させて前記突合せ部を接合することを特徴とする液冷ジャケットの製造方法。 A method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows, and a sealing body for sealing an opening of the recess,
While preparing the sealing body, having a bottom portion and a frame-shaped peripheral wall portion rising from the periphery of the bottom portion, a step bottom surface formed at a position one step lower than the end surface of the peripheral wall portion, and from the step bottom surface A preparation step of preparing the jacket main body with a stepped side surface that rises;
A butting step in which the sealing body having a thickness larger than the height dimension of the step side surface is placed on the step bottom surface to form a butt portion in which the step side surface and the side surface of the sealing body are abutted against each other. When,
An arranging step of arranging an auxiliary member at an inner corner constituted by an end surface of the peripheral wall portion and a side surface of the sealing body;
A friction stirring step of inserting a rotary tool having a stirring pin in the inner corner and performing friction stirring on the butt portion in a state where only the stirring pin is in contact with the jacket body, the sealing body and the auxiliary member; ,
Removing the auxiliary member formed with burrs from at least one of the jacket body and the sealing body,
In the friction stirring step, the rotating tool is rotated around the sealing body along the inner corner, and the butt portion is joined. - 前記摩擦攪拌工程では、前記バリが前記補助部材に発生するように接合条件を設定することを特徴とする請求項15に記載の液冷ジャケットの製造方法。 The method for manufacturing a liquid cooling jacket according to claim 15, wherein, in the friction stirring step, a joining condition is set so that the burr is generated in the auxiliary member.
- 前記摩擦攪拌工程では、前記回転ツールの回転中心軸を外側に傾斜させた状態で摩擦攪拌を行うことを特徴とする請求項15又は請求項16に記載の液冷ジャケットの製造方法。 The method for manufacturing a liquid cooling jacket according to claim 15 or 16, wherein in the friction stirring step, friction stirring is performed in a state where a rotation center axis of the rotary tool is inclined outward.
- 前記準備工程では、前記底部に前記段差底面と面一の端面を備えた支持部及び前記支持部から突出する突出部を形成するとともに、前記封止体の裏面に凹溝を形成し、
前記突合せ工程では、前記凹溝に前記突出部を挿入しつつ前記封止体を載置し、
前記摩擦攪拌工程では、前記突出部と前記凹溝とが嵌め合わされた嵌合部に対して前記回転ツールの攪拌ピンのみを、前記封止体のみ、又は、前記突出部及び前記封止体に接触させた状態で摩擦攪拌を行うことを特徴とする請求項15に記載の液冷ジャケットの製造方法。 In the preparation step, a support portion provided with an end surface flush with the step bottom surface and a protruding portion protruding from the support portion are formed on the bottom portion, and a concave groove is formed on the back surface of the sealing body,
In the butting step, the sealing body is placed while inserting the protruding portion into the concave groove,
In the friction agitation step, only the agitation pin of the rotary tool is applied to the fitting part in which the protruding part and the concave groove are fitted together, only the sealing body, or the protruding part and the sealing body. The method for producing a liquid cooling jacket according to claim 15, wherein friction stirring is performed in a contact state. - 前記支持部は、前記周壁部から延設されており、
前記摩擦攪拌工程では、前記嵌合部の摩擦攪拌を行った後、そのまま前記周壁部まで移動させ、前記周壁部の上で前記回転ツールを離脱させることを特徴とする請求項18に記載の液冷ジャケットの製造方法。 The support portion extends from the peripheral wall portion,
19. The liquid according to claim 18, wherein, in the friction stirring step, after the friction stir of the fitting portion is performed, the fitting portion is moved as it is to the peripheral wall portion, and the rotary tool is detached on the peripheral wall portion. Manufacturing method for cold jacket. - 熱輸送流体が流れる凹部を有するジャケット本体と、前記凹部の開口部を封止する封止体とで構成される液冷ジャケットの製造方法であって、
底部及び前記底部の周縁から立ち上る枠状の周壁部を有する前記ジャケット本体と、前記封止体とを準備する準備工程と、
前記周壁部の端面と前記封止体の裏面とを重ね合わせて重合部を形成する重合工程と、
前記周壁部の端面と前記封止体の側面とで構成された内隅に補助部材を配置する配置工程と、
前記内隅に攪拌ピンを備えた回転ツールを挿入し、前記攪拌ピンのみを前記ジャケット本体、前記封止体及び前記補助部材に接触させた状態で前記重合部に摩擦攪拌を行う摩擦攪拌工程と、
バリが形成された前記補助部材を前記ジャケット本体及び前記封止体の少なくとも一方から除去する除去工程と、を含み、
前記摩擦攪拌工程では、前記内隅に沿って前記回転ツールを前記封止体の回りに一周させて前記重合部を接合することを特徴とする液冷ジャケットの製造方法。 A method for manufacturing a liquid cooling jacket comprising a jacket body having a recess through which a heat transport fluid flows, and a sealing body for sealing an opening of the recess,
A preparation step of preparing the jacket body having the bottom part and a frame-shaped peripheral wall part rising from the periphery of the bottom part, and the sealing body;
A polymerization step of overlapping the end surface of the peripheral wall portion and the back surface of the sealing body to form a polymerization portion;
An arranging step of arranging an auxiliary member at an inner corner constituted by an end surface of the peripheral wall portion and a side surface of the sealing body;
A friction stirring step of inserting a rotating tool having a stirring pin in the inner corner and performing friction stirring on the overlapping portion in a state where only the stirring pin is in contact with the jacket body, the sealing body, and the auxiliary member; ,
Removing the auxiliary member formed with burrs from at least one of the jacket body and the sealing body,
In the friction stirring step, the liquid cooling jacket manufacturing method is characterized in that the rotating tool is rotated around the sealing body along the inner corner to join the overlapped portion. - 前記摩擦攪拌工程では、前記バリが前記補助部材に発生するように接合条件を設定することを特徴とする請求項20に記載の液冷ジャケットの製造方法。 21. The method of manufacturing a liquid cooling jacket according to claim 20, wherein in the friction stirring step, a joining condition is set so that the burr is generated in the auxiliary member.
- 前記摩擦攪拌工程では、前記回転ツールの回転中心軸を外側に傾斜させた状態で摩擦攪拌を行うことを特徴とする請求項20又は請求項21に記載の液冷ジャケットの製造方法。 The method for manufacturing a liquid cooling jacket according to claim 20 or 21, wherein, in the friction stirring step, friction stirring is performed in a state where a rotation center axis of the rotary tool is inclined outward.
- 前記準備工程では、前記底部に、前記周壁部の端面と面一の端面を備えた支持部を立設するとともに、当該支持部の端面に突出部を形成し、前記封止体の裏面に凹溝を形成し、
前記重合工程では、前記凹溝に前記突出部を挿入しつつ、前記周壁部の端面及び前記支持部の端面を覆うように前記封止体を載置し、
前記摩擦攪拌工程では、前記凹溝と前記突出部とが嵌め合わされた嵌合部に対して、前記回転ツールを前記封止体のみ、又は、前記封止体及び前記突出部に接触させた状態で摩擦攪拌することを特徴とする請求項20に記載の液冷ジャケットの製造方法。 In the preparation step, a support portion having an end surface flush with the end surface of the peripheral wall portion is erected on the bottom portion, a protrusion is formed on the end surface of the support portion, and a recess is formed on the back surface of the sealing body. Forming grooves,
In the polymerization step, the sealing body is placed so as to cover the end surface of the peripheral wall portion and the end surface of the support portion while inserting the protruding portion into the concave groove,
In the friction stirring step, the rotating tool is brought into contact with only the sealing body or the sealing body and the protruding portion with respect to the fitting portion where the concave groove and the protruding portion are fitted together. The method for producing a liquid-cooled jacket according to claim 20, wherein friction stirring is performed using - 前記摩擦攪拌工程では、前記回転ツールの攪拌ピンを前記突出部に沿って一周以上相対移動させた後、前記回転ツールを前記封止体から離脱させることを特徴とする請求項23に記載の液冷ジャケットの製造方法。 24. The liquid according to claim 23, wherein, in the friction stirring step, the rotating tool is moved away from the sealing body after the stirring pin of the rotating tool is relatively moved one or more times along the protruding portion. Manufacturing method for cold jacket.
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