WO2019082435A1 - Procédé de fabrication d'une chemise refroidie par liquide - Google Patents

Procédé de fabrication d'une chemise refroidie par liquide

Info

Publication number
WO2019082435A1
WO2019082435A1 PCT/JP2018/023405 JP2018023405W WO2019082435A1 WO 2019082435 A1 WO2019082435 A1 WO 2019082435A1 JP 2018023405 W JP2018023405 W JP 2018023405W WO 2019082435 A1 WO2019082435 A1 WO 2019082435A1
Authority
WO
WIPO (PCT)
Prior art keywords
jacket
sealing body
peripheral wall
stirring pin
stirring
Prior art date
Application number
PCT/JP2018/023405
Other languages
English (en)
Japanese (ja)
Inventor
堀　久司
伸城 瀬尾
Original Assignee
日本軽金属株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2017207819A external-priority patent/JP6943140B2/ja
Priority claimed from JP2018025295A external-priority patent/JP2019136767A/ja
Priority claimed from JP2018028831A external-priority patent/JP6950569B2/ja
Priority claimed from JP2018034672A external-priority patent/JP6950580B2/ja
Application filed by 日本軽金属株式会社 filed Critical 日本軽金属株式会社
Priority to CN201880055187.1A priority Critical patent/CN111093880B/zh
Publication of WO2019082435A1 publication Critical patent/WO2019082435A1/fr

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to a method of manufacturing a liquid cooling jacket.
  • Patent Document 1 discloses a method of manufacturing a liquid cooling jacket.
  • FIG. 40 is a cross-sectional view showing a method of manufacturing a conventional liquid cooling jacket.
  • a butt portion J10 formed by butting the step side surface 101c provided on the step portion of the aluminum alloy jacket body 101 with the side surface 102c of the aluminum alloy sealing body 102.
  • friction stir welding is performed by inserting only the stirring pin F2 of the rotary tool F into the butt portion J10.
  • the rotation center axis C of the rotation tool F is accumulated on the butt joint part J10, and is relatively moved.
  • Patent Document 2 discloses a method of manufacturing a liquid cooling jacket.
  • FIG. 41 is a cross-sectional view showing a method of manufacturing a conventional liquid cooling jacket.
  • the butt portion J11 formed by butting the end face 215a of the support 215 standing on the bottom of the aluminum alloy jacket body 202 and the back surface 203b of the aluminum alloy sealing body 203
  • friction stir welding is performed.
  • the stirring pin F2 of the rotary tool F is inserted from the surface 203a of the sealing body 203.
  • the jacket bodies 101 and 202 tend to have complicated shapes, for example, formed of a cast material of 4000 series aluminum alloy, and a relatively simple one such as the sealing body 102 and 203 is a 1000 series aluminum alloy There is a case where it is formed of a wrought material. As described above, members having different aluminum alloy grades may be joined to produce a liquid-cooled jacket. In such a case, the hardness of the jacket bodies 101 and 202 is generally higher than that of the sealing bodies 102 and 203. Therefore, when friction stir welding is performed as shown in FIG. The material resistance received from the jacket main body 101 side is larger than the material resistance received from the stop body 102 side. Therefore, it becomes difficult to agitate different material types with good balance by the stirring pin of the rotary tool F, and there is a problem that a cavity defect occurs in the plasticized area after bonding, and the bonding strength is lowered.
  • an object of the present invention is to provide a method of manufacturing a liquid-cooled jacket capable of suitably bonding aluminum alloys of different grades.
  • the present invention comprises a bottom body, a jacket body having a peripheral wall portion rising from the periphery of the bottom portion, and a column rising from the bottom portion, and a sealing body sealing the opening of the jacket body. It is a manufacturing method of the liquid cooling jacket which is constituted and joins the above-mentioned jacket main part and the above-mentioned sealing body by friction stirring, and the above-mentioned jacket main body is formed with the 1st aluminum alloy, and the above-mentioned sealing body is the 2nd aluminum
  • the first aluminum alloy is a grade higher in hardness than the second aluminum alloy, and the outer peripheral surface of the stirring pin of the rotary tool is inclined so as to be tapered, and the peripheral wall portion is formed.
  • a peripheral wall stepped portion is formed having a stepped bottom surface and a stepped side surface that obliquely rises so as to extend outward from the stepped bottom surface toward the opening.
  • Forming the first abutting portion by placing the sealing body on the jacket main body, butting the stepped side surface of the peripheral wall stepped portion with the outer peripheral side surface of the sealed body to form a first abutment portion; Placing a second butt portion on the bottom surface of the step and the back surface of the sealing body to form a second abutment portion, and further forming a third butt portion by abutting the end surface of the support pillar and the back surface of the sealing body And inserting only the stirring pin which rotates into the sealing body, and in a state where only the stirring pin is in contact with only the sealing body, the rotation tool is made to go around along the first butting portion to perform friction.
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since only the stirring pin is brought into contact with only the sealing body to perform friction stirring, there is almost no mixing of the first aluminum alloy from the jacket main body to the sealing body in both the first abutment portion and the third abutment portion. As a result, since the second aluminum alloy on the sealing body side is mainly friction-stirred in the first butted portion and the third butted portion, it is possible to suppress a decrease in bonding strength.
  • the strength of the liquid cooling jacket can be enhanced by joining the support and the sealing body.
  • a jacket main body having a bottom portion, a peripheral wall portion rising from a peripheral edge of the bottom portion, and a column rising from the bottom portion, and a sealing body sealing the opening of the jacket main body
  • a step of forming a peripheral wall stepped portion having a step side rising obliquely from the bottom of the step so as to extend outward toward the opening The sealing body is placed on the gasket body, and the stepped side surface of the peripheral wall stepped portion and the outer peripheral side surface of the sealed body are butted to form a first abutment portion, and the stepped bottom surface of the peripheral wall stepped portion and the seal Placing the second butt portion on the back surface of the stopper to form a second abutment portion, and further, placing the end surface of the support butt against the back surface of the sealing body to form a third abutment portion; Only the pin is inserted in the sealing body, and in a state where only the stirring pin is in contact with only the sealing body, the first tool which performs the friction stirring by rotating the rotating tool around the first abutment portion. In the bonding step, only the rotating stirring pin is inserted into the sealing body, and in a state in which the stirring pin is slightly in contact with the end face of the
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since only the stirring pin is brought into contact with only the sealing body to perform friction stirring, the mixing of the first aluminum alloy from the jacket main body to the sealing body at the first abutment portion is hardly occurred. As a result, the second aluminum alloy on the sealing body side is mainly friction-stirred at the first abutting portion, so that it is possible to suppress a decrease in bonding strength.
  • the stirring pin is kept in slight contact with the end face of the support at the third abutment portion, it is possible to suppress the mixing of the first aluminum alloy from the jacket main body to the sealing body.
  • the step side surface of the jacket main body is inclined outward, the contact between the stirring pin and the jacket main body can be easily avoided without causing a decrease in the joint strength.
  • the strength of the liquid cooling jacket can be enhanced by joining the support and the sealing body.
  • a jacket main body having a bottom portion, a peripheral wall portion rising from a peripheral edge of the bottom portion, and a column rising from the bottom portion, and a sealing body sealing the opening of the jacket main body
  • a step of forming a peripheral wall stepped portion having a step side rising obliquely from the bottom of the step so as to extend outward toward the opening The sealing body is placed on the gasket body, and the stepped side surface of the peripheral wall stepped portion and the outer peripheral side surface of the sealed body are butted to form a first abutment portion, and the stepped bottom surface of the peripheral wall stepped portion and the seal Placing the second butt portion on the back surface of the stopper to form a second abutment portion, and further, placing the end surface of the support butt against the back surface of the sealing body to form a third abutment portion; In the state where only the pin is inserted into the sealing body and the stirring pin is in slight contact with the step side surface of the peripheral wall step portion, the rotary tool is made to go around along the first abutment portion to perform friction stirring.
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since the outer peripheral surface of the stirring pin is kept in slight contact with the stepped side surface of the jacket main body, the mixing of the first aluminum alloy from the jacket main body to the sealing body can be minimized. In addition, since the stirring pin is brought into contact only with the sealing body at the third abutment portion, it is possible to prevent the mixing of the first aluminum alloy from the jacket main body to the sealing body at the third abutment portion.
  • the step side surface of the jacket main body is inclined outward, it is possible to join the first abutment portion without the stirring pin largely invading the jacket main body side.
  • the strength of the liquid cooling jacket can be enhanced by joining the support and the sealing body.
  • the friction stirring be performed along the first abutment portion in a state where the agitating pin is slightly in contact with the step bottom surface of the peripheral wall step portion.
  • the bonding strength can be further enhanced.
  • a jacket main body having a bottom portion, a peripheral wall portion rising from a peripheral edge of the bottom portion, and a column rising from the bottom portion, and a sealing body sealing the opening of the jacket main body
  • a step of forming a peripheral wall stepped portion having a step side rising obliquely from the bottom of the step so as to extend outward toward the opening The sealing body is placed on the gasket body, and the stepped side surface of the peripheral wall stepped portion and the outer peripheral side surface of the sealed body are butted to form a first abutment portion, and the stepped bottom surface of the peripheral wall stepped portion and the seal Placing the second butt portion on the back surface of the stopper to form a second abutment portion, and further, placing the end surface of the support butt against the back surface of the sealing body to form a third abutment portion; In the state where only the pin is inserted into the sealing body and the stirring pin is in slight contact with the step side surface of the peripheral wall step portion, the rotary tool is made to go around along the first abutment portion to perform friction stirring.
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since the outer peripheral surface of the stirring pin is kept in slight contact with the stepped side surface of the jacket main body, the mixing of the first aluminum alloy from the jacket main body to the sealing body can be minimized. In addition, since the stirring pin is kept in slight contact with the end face of the support also in the third abutment portion, the mixing of the first aluminum alloy from the jacket main body to the sealing body in the third abutment portion can be minimized.
  • the step side surface of the jacket main body is inclined outward, it is possible to join the first abutment portion without the stirring pin largely invading the jacket main body side.
  • the strength of the liquid cooling jacket can be enhanced by joining the support and the sealing body.
  • the friction stirring be performed along the first abutment portion in a state where the agitating pin is slightly in contact with the step bottom surface of the peripheral wall step portion.
  • the bonding strength can be further enhanced.
  • the jacket body may be formed by die casting and the bottom portion may be formed to be convex on the surface side, and the sealing body may be formed to be convex on the surface side. preferable.
  • the jacket main body and sealing body Can be made flat beforehand by utilizing heat contraction.
  • the deformation amount of the jacket main body is measured in advance, and in the first main bonding step and the second main bonding step, while adjusting the insertion depth of the stirring pin of the rotary tool according to the deformation amount. It is preferable to carry out frictional stirring.
  • the length and width of the plasticized region formed in the liquid cooling jacket can be made constant. it can.
  • a cooling plate through which a cooling medium flows is disposed on the back side of the bottom portion, and friction is performed while cooling the jacket main body and the sealing body by the cooling plate. It is preferred to carry out stirring.
  • the cooling efficiency can be enhanced.
  • the said cooling plate has a cooling flow path through which the said cooling medium flows, and the said cooling flow path is provided with the planar shape in alignment with the movement trace of the said rotation tool in the said 1st main joining process.
  • the portion to be frictionally stirred can be intensively cooled, the cooling efficiency can be further enhanced.
  • the cooling flow path through which the cooling medium flows is configured by a cooling pipe embedded in the cooling plate. According to this manufacturing method, the cooling medium can be easily managed.
  • a cooling medium is caused to flow through the hollow portion formed by the jacket main body and the sealing body to cool the jacket main body and the sealing body. It is preferable to carry out frictional stirring.
  • the frictional heat can be suppressed to a low level, the deformation of the liquid cooling jacket due to the thermal contraction can be reduced.
  • cooling can be performed using the jacket body itself without using a cooling plate or the like.
  • a jacket main body having a bottom portion, a peripheral wall portion rising from a peripheral edge of the bottom portion, and a column rising from the bottom portion, and a sealing body sealing the opening of the jacket main body
  • the first aluminum alloy is a grade having a hardness higher than that of the second aluminum alloy
  • the outer peripheral surface of the stirring pin of the rotary tool is inclined to be tapered
  • the flat surface is on the tip side of the stirring pin Is formed
  • the flat surface is provided with a projection projecting downward
  • the inner peripheral edge of the peripheral wall portion is widened outward from the bottom surface of the step toward the opening from the bottom surface of the step.
  • the sealing body is placed on the jacket body, and the step side surface of the peripheral wall step portion and the outer peripheral side surface of the sealing body. Butt together to form a first butted portion, and a second butt portion is formed by superposing the step bottom surface of the peripheral wall step portion and the back surface of the sealed body, and further, the end face of the support and the sealed body A mounting step of forming a third abutment portion by butting the back surface of the support, and a state in which only the rotating stirring pin is inserted into the sealing body and the protrusion of the stirring pin is in contact with the end face of the support And a second main joining step of frictionally agitating the third abutting portion.
  • the projection of the stirring pin is kept in contact with the end face of the support, the mixing of the first aluminum alloy from the jacket body to the sealing body can be minimized.
  • the second aluminum alloy on the sealing body side is mainly friction-stirred in the third butted portion, so that it is possible to suppress a decrease in bonding strength.
  • the plastic fluid material which is frictionally stirred along the protrusion of the stirring pin and wound up to the protrusion is pressed by the flat surface of the stirring pin. As a result, it is possible to frictionally stir around the protrusions more reliably, and since the oxide film of the third abutting portion is surely divided, the bonding strength of the third abutting portion can be enhanced.
  • the second main bonding step it is preferable to perform friction stirring on the third abutment portion in a state where the flat surface of the stirring pin is not in contact with the end face of the support.
  • the width of the plasticized region can be reduced, the plastic flow material can be prevented from flowing out from the third abutment portion, and the end face of the support can also be set small.
  • the method further includes a first main joining step of moving the rotary tool along the first abutment portion to perform friction stirring, and in the first main joining step, the outer peripheral surface of the stirring pin is only the sealing body It is preferable to perform friction stirring in the state which was made to contact.
  • the strength of the liquid cooling jacket can be increased by joining the peripheral wall step portion and the sealing body.
  • the outer peripheral surface of the stirring pin is brought into contact with only the sealing body, the mixing of the first aluminum alloy from the jacket main body to the sealing body can be reduced.
  • the rotary tool is moved along the first abutment portion in a state where the projection of the stirring pin is in contact with the step bottom surface of the peripheral wall step portion to perform friction stirring. It is preferred to do. Further, in the first main joining step, the rotational tool is moved along the first abutment portion to perform friction stirring while the flat surface of the stirring pin is not in contact with the step bottom surface of the peripheral wall step portion. Is preferred. According to this configuration, the second abutment portion can be reliably joined, and the mixing of the first aluminum alloy from the jacket main body to the sealing body can be minimized.
  • the method further includes a first main joining step of moving the rotary tool along the first abutment portion to perform friction stirring, and in the first main joining step, the outer peripheral surface of the stirring pin is used as the sealing body. It is characterized in that friction agitation is performed while being in contact with and slightly in contact with the jacket body. In this way, the first abutment portion can be joined reliably, and the outer peripheral surface of the agitating pin is kept in slight contact with the jacket main body, so that mixing of the first aluminum alloy from the jacket main body to the sealing body Can be reduced.
  • the rotary tool is moved along the first abutment portion in a state where the projection of the stirring pin is in contact with the step bottom surface of the peripheral wall step portion to perform friction stirring. It is preferred to do. Further, in the first main joining step, the rotational tool is moved along the first abutment portion to perform friction stirring while the flat surface of the stirring pin is not in contact with the step bottom surface of the peripheral wall step portion. Is preferred. According to this configuration, the second abutment portion can be reliably joined, and the mixing of the first aluminum alloy from the jacket main body to the sealing body can be minimized.
  • the rotational stirring be performed around the opening along the first butting portion to perform friction stirring.
  • the strength of the liquid cooling jacket can be further enhanced by reliably joining the peripheral wall step portion and the sealing body.
  • the jacket body may be formed by die casting and the bottom portion may be formed to be convex on the surface side, and the sealing body may be formed to be convex on the surface side. preferable.
  • the jacket main body and sealing body Can be made flat beforehand by utilizing heat contraction.
  • the deformation amount of the jacket main body is measured in advance, and in the first main bonding step and the second main bonding step, while adjusting the insertion depth of the stirring pin of the rotary tool according to the deformation amount. It is preferable to carry out frictional stirring. According to this manufacturing method, even when friction stir welding is performed by curving the jacket main body and the sealing body in a convex shape, the length and width of the plasticized region formed in the liquid cooling jacket can be made constant. it can.
  • a cooling plate through which a cooling medium flows is disposed on the back side of the bottom portion, and friction is performed while cooling the jacket main body and the sealing body by the cooling plate.
  • stirring is performed.
  • the cooling efficiency can be enhanced.
  • the said cooling plate has a cooling flow path through which the said cooling medium flows, and the said cooling flow path is provided with the planar shape in alignment with the movement trace of the said rotation tool in the said 1st main joining process. According to this manufacturing method, since the portion to be frictionally stirred can be intensively cooled, the cooling efficiency can be further enhanced.
  • the cooling flow path through which the cooling medium flows is configured by a cooling pipe embedded in the cooling plate. According to this manufacturing method, the cooling medium can be easily managed.
  • a cooling medium is caused to flow through the hollow portion formed by the jacket main body and the sealing body to cool the jacket main body and the sealing body. It is preferable to carry out frictional stirring.
  • the frictional heat can be suppressed to a low level, the deformation of the liquid cooling jacket due to the thermal contraction can be reduced.
  • cooling can be performed using the jacket body itself without using a cooling plate or the like.
  • a jacket main body having a bottom portion and a peripheral wall portion rising from a peripheral edge of the bottom portion, and a sealing body sealing the opening of the jacket main body, the jacket main body and the sealing body
  • the above-mentioned jacket main part is formed by the 1st aluminum alloy
  • the above-mentioned sealed object is formed by the 2nd aluminum alloy
  • the above-mentioned 1st aluminum alloy is
  • the outer peripheral surface of the agitating pin of the rotary tool used in the friction agitation is tapered so as to be tapered
  • the inner peripheral edge of the peripheral wall portion has a stepped bottom surface, which is a grade higher in hardness than the second aluminum alloy.
  • a peripheral wall step portion having a step side surface that obliquely rises so as to extend outward from the step step bottom toward the opening; and the plate thickness of the sealing body is Preparing the sealing body to be larger than the height dimension of the stepped side surface of the peripheral wall stepped portion; and mounting the sealed body on the jacket main body, the stepped side surface of the peripheral wall stepped portion And forming a first abutment portion so that a gap is formed between the stepped side surface and the outer peripheral side surface when the outer peripheral side surface of the sealing body is butted, and the stepped bottom surface of the peripheral wall stepped portion and the sealing
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since only the stirring pin is brought into contact with only the sealing body to perform friction stirring, the mixing of the first aluminum alloy from the jacket main body to the sealing body at the first abutment portion is hardly occurred. As a result, the second aluminum alloy on the sealing body side is mainly friction-stirred at the first abutting portion, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface of the jacket main body is inclined outward, the contact between the stirring pin and the jacket main body can be easily avoided without causing a decrease in the joint strength.
  • the metal of the sealing body is made to flow into the gap, it is possible to prevent the metal shortage of the bonding portion.
  • the bonding strength between the sealing body and the jacket main body can be enhanced, and the heat exchange efficiency can be improved.
  • the friction stirring is performed in a state where the stirring pin is slightly in contact with the bottom of the step of the peripheral wall step portion. According to this manufacturing method, the bonding strength can be further enhanced.
  • this invention is comprised by the jacket main body which has a surrounding wall part which stands
  • a peripheral wall step portion is formed having a step side surface that obliquely rises so as to extend outward from the step step bottom toward the opening, and the plate thickness of the sealing body is Preparing the sealing body to be larger than the height dimension of the side surface of the stepped portion of the peripheral wall step portion; and mounting the sealing body on the jacket main body to form the stepped portion of the peripheral wall stepped portion
  • a first abutment portion is formed so that a gap is formed between the side surface and the outer peripheral side surface when the side surface and the outer peripheral side surface of the sealing body are butted, and the bottom surface of the stepped surface of the peripheral wall stepped portion and the seal
  • the rotary tool is moved along the first abutment portion in a state of being slightly in contact with the side surface of the step
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body.
  • only the stirring pin is inserted into the sealing body, and the friction stirring is performed in a state where the outer peripheral surface of the stirring pin is slightly in contact with the step side surface of the peripheral wall step portion.
  • the second aluminum alloy on the sealing body side is mainly friction-stirred at the first abutting portion, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface of the jacket main body is inclined outward, the contact between the stirring pin and the jacket main body can be easily avoided without causing a decrease in the joint strength.
  • the metal of the sealing body is made to flow into the gap, it is possible to prevent the metal shortage of the bonding portion.
  • the bonding strength between the sealing body and the jacket main body can be enhanced, and the heat exchange efficiency can be improved.
  • the friction stirring is performed in a state where the stirring pin is slightly in contact with the bottom of the step of the peripheral wall step portion. According to this manufacturing method, the bonding strength can be further enhanced.
  • the rotary tool is moved along the first butting portion to make one round around the opening to perform the friction stirring. Bonding strength can be further enhanced by this manufacturing method.
  • the jacket main body is formed by die casting and the bottom is formed to be convex on the surface side, and the sealing body is formed to be convex on the surface side. It is preferable to form.
  • thermal contraction occurs in the plasticizing region due to heat input in friction stir welding, and there is a risk that the liquid-cooled jacket will be deformed so as to be concave on the side of the sealed body.
  • the liquid cooling jacket can be made flat by making the main body and the sealing body convex in advance and utilizing heat contraction.
  • the jacket body it is preferable to measure the amount of deformation of the jacket body in advance, and to perform friction stirring while adjusting the insertion depth of the stirring pin of the rotary tool in accordance with the amount of deformation in the main bonding step. According to this manufacturing method, even when friction stir welding is performed by curving the jacket main body and the sealing body in a convex shape, the length and width of the plasticized region formed in the liquid cooling jacket can be made constant. it can.
  • the present invention further includes a temporary bonding step of temporarily bonding the first abutting portion prior to the main bonding step.
  • a temporary bonding step of temporarily bonding the first abutting portion prior to the main bonding step.
  • a cooling plate through which a cooling medium flows is disposed on the back surface side of the bottom, and friction stirring is performed while cooling the jacket main body and the sealing body by the cooling plate.
  • this manufacturing method since the frictional heat can be suppressed to a low level, the deformation of the liquid cooling jacket due to the thermal contraction can be reduced.
  • the surface of the cooling plate is in surface contact with the back surface of the bottom portion. According to this manufacturing method, the cooling efficiency can be enhanced.
  • the cooling plate has a cooling flow passage through which the cooling medium flows, and the cooling flow passage has a planar shape along a movement trajectory of the rotary tool in the main bonding step. According to this manufacturing method, since the portion to be frictionally stirred can be intensively cooled, the cooling efficiency can be further enhanced.
  • the cooling flow passage through which the cooling medium flows is constituted by a cooling pipe embedded in the cooling plate. According to this manufacturing method, the cooling medium can be easily managed.
  • a cooling medium is caused to flow through the hollow portion formed by the jacket main body and the sealing body, and friction stirring is performed while cooling the jacket main body and the sealing body.
  • friction stirring is performed while cooling the jacket main body and the sealing body.
  • a jacket main body having a bottom portion and a peripheral wall portion rising from a peripheral edge of the bottom portion, and a sealing body sealing the opening of the jacket main body, the jacket main body and the sealing body
  • the above-mentioned jacket main part is formed by the 1st aluminum alloy
  • the above-mentioned sealed object is formed by the 2nd aluminum alloy
  • the above-mentioned 1st aluminum alloy is The hardness is higher than that of the second aluminum alloy
  • the outer peripheral surface of the stirring pin of the rotary tool used for friction stirring is inclined so as to be tapered, and a flat surface is formed on the tip side of the stirring pin And a protrusion that protrudes to the flat surface is formed, and the inner peripheral edge of the peripheral wall portion is widened outward from the bottom surface of the step and the bottom surface of the step toward the opening.
  • a step of forming a peripheral wall step portion having a step surface which rises diagonally, and mounting the sealing body on the jacket main body, the step surface of the peripheral wall step portion and the sealing body A placement step of forming a first abutment portion by butting the outer circumferential side face with each other and forming a second abutment portion by overlapping the bottom surface of the stepped portion of the peripheral wall step portion and the back surface of the sealing body; Only the stirring pin of the tool is inserted into the sealing body, and the outer peripheral surface of the stirring pin is not in contact with the stepped side surface of the peripheral wall stepped portion, and the projection of the stirring pin is the peripheral wall stepped portion And a main joining step of frictionally stirring by moving the rotary tool along the first abutment portion in a state of being in contact with the bottom surface of the step.
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body. Further, since only the stirring pin is brought into contact with the sealing body to perform friction stirring, the mixing of the first aluminum alloy from the jacket main body to the sealing body at the first abutment portion can be minimized. As a result, the second aluminum alloy on the sealing body side is mainly friction-stirred at the first abutting portion, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface of the jacket main body is inclined outward, the contact between the stirring pin and the jacket main body can be easily avoided without causing a decrease in the joint strength.
  • a flat surface is formed on the tip side of the stirring pin, and a projection projecting on the flat surface is formed. Therefore, the plastic flow material is frictionally stirred along the projection and wound up on the projection. Is held down by a flat surface. As a result, it is possible to carry out frictional stirring of the periphery of the protrusion more reliably and at the same time the oxide film of the second butted portion is surely divided, so it is possible to increase the bonding strength of the second butted portion.
  • the friction stirring is performed in a state where the flat surface of the stirring pin is not in contact with the bottom surface of the stepped portion of the peripheral wall stepped portion.
  • the width of the plasticized region at the step bottom can be reduced.
  • the width of the bottom of the step can also be set small.
  • the second aluminum alloy on the sealing body side is mainly friction-stirred at the second abutting portion, it is possible to suppress a decrease in bonding strength.
  • this invention is comprised by the jacket main body which has a surrounding wall part which stands
  • the above-mentioned jacket main part is formed by the 1st aluminum alloy
  • the above-mentioned sealed object is formed by the 2nd aluminum alloy
  • the above-mentioned 1st aluminum alloy is The hardness is higher than that of the second aluminum alloy
  • the outer peripheral surface of the stirring pin of the rotary tool used for friction stirring is inclined so as to be tapered, and a flat surface is formed on the tip side of the stirring pin And a protrusion protruding from the flat surface is formed, and the inner peripheral edge of the peripheral wall portion is provided with a bottom surface of the step and an outer side from the bottom surface of the step toward the opening.
  • the second aluminum alloy mainly on the sealing body side of the first abutting portion is stirred and plasticized by the frictional heat of the sealing body and the stirring pin, and the step side surface and the sealing are performed in the first abutting portion. It can be joined to the outer peripheral side of the body.
  • only the stirring pin is inserted into the sealing body, and the friction stirring is performed in a state where the outer peripheral surface of the stirring pin is slightly in contact with the step side surface of the peripheral wall step portion. Contamination of the first aluminum alloy into the sealing body can be minimized.
  • the second aluminum alloy on the sealing body side is mainly friction-stirred at the first abutting portion, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface of the jacket main body is inclined outward, the contact between the stirring pin and the jacket main body can be easily avoided without causing a decrease in the joint strength.
  • a flat surface is formed on the tip side of the stirring pin, and a projection projecting downward is formed on the flat surface, so that the plastic flow is frictionally stirred along the projection and wound up on the projection. The material is held flat. As a result, it is possible to carry out frictional stirring of the periphery of the protrusion more reliably and at the same time the oxide film of the second butted portion is surely divided, so it is possible to increase the bonding strength of the second butted portion.
  • the friction stirring is performed in a state where the flat surface of the stirring pin is not in contact with the bottom surface of the stepped portion of the peripheral wall stepped portion.
  • the width of the plasticized region at the step bottom can be reduced.
  • the width of the bottom of the step can also be set small.
  • the second aluminum alloy on the sealing body side is mainly friction-stirred at the second abutting portion, it is possible to suppress a decrease in bonding strength.
  • the rotary tool is moved along the first butting portion to make one round around the opening to perform the friction stirring. Bonding strength can be further enhanced by this manufacturing method.
  • the jacket main body is formed by die casting and the bottom is formed to be convex on the surface side, and the sealing body is formed to be convex on the surface side. It is preferable to form.
  • thermal contraction occurs in the plasticizing region due to heat input in friction stir welding, and there is a risk that the liquid-cooled jacket will be deformed so as to be concave on the side of the sealed body.
  • the liquid cooling jacket can be made flat by making the main body and the sealing body convex in advance and utilizing heat contraction.
  • the jacket body it is preferable to measure the amount of deformation of the jacket body in advance, and to perform friction stirring while adjusting the insertion depth of the stirring pin of the rotary tool in accordance with the amount of deformation in the main bonding step. According to this manufacturing method, even when friction stir welding is performed by curving the jacket main body and the sealing body in a convex shape, the length and width of the plasticized region formed in the liquid cooling jacket can be made constant. it can.
  • the present invention further includes a temporary bonding step of temporarily bonding the first abutting portion prior to the main bonding step.
  • a temporary bonding step of temporarily bonding the first abutting portion prior to the main bonding step.
  • a cooling plate through which a cooling medium flows is disposed on the back surface side of the bottom, and friction stirring is performed while cooling the jacket main body and the sealing body by the cooling plate.
  • this manufacturing method since the frictional heat can be suppressed to a low level, the deformation of the liquid cooling jacket due to the thermal contraction can be reduced.
  • the surface of the cooling plate is in surface contact with the back surface of the bottom portion. According to this manufacturing method, the cooling efficiency can be enhanced.
  • the cooling plate has a cooling flow passage through which the cooling medium flows, and the cooling flow passage has a planar shape along a movement trajectory of the rotary tool in the main bonding step. According to this manufacturing method, since the portion to be frictionally stirred can be intensively cooled, the cooling efficiency can be further enhanced.
  • the cooling flow passage through which the cooling medium flows is constituted by a cooling pipe embedded in the cooling plate. According to this manufacturing method, the cooling medium can be easily managed.
  • a cooling medium is caused to flow through the hollow portion formed by the jacket main body and the sealing body, and friction stirring is performed while cooling the jacket main body and the sealing body.
  • friction stirring is performed while cooling the jacket main body and the sealing body.
  • FIG. 1 It is a perspective view which shows the preparatory process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment of this invention. It is sectional drawing which shows the mounting process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment. It is a perspective view which shows the 1st main joining process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment. It is sectional drawing which shows the 1st main joining process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment. It is sectional drawing which shows the 1st main joining process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment. It is sectional drawing which shows after the 1st main joining process of the manufacturing method to the liquid cooling jacket which concerns on 1st embodiment. It is a perspective view which shows the 2nd main joining process of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment.
  • FIG. 1 It is a perspective view which shows the table of the 4th modification of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment.
  • the 4th modification of the manufacturing method of the liquid cooling jacket concerning a first embodiment, it is a perspective view showing the state where a jacket main part and a closure were fixed to a table.
  • It is a perspective view which shows the state which fixes the jacket main body and sealing body of the 5th modification of the manufacturing method of the liquid cooling jacket which concerns on 1st embodiment to a table.
  • the liquid-cooled jacket 1 is manufactured by friction stir welding of the jacket main body 2 and the sealing body 3.
  • the liquid cooling jacket 1 is a member in which a heating element (not shown) is placed on the sealing body 3 and a fluid is allowed to flow inside to exchange heat with the heating element.
  • "surface” means a surface opposite to "back side”.
  • the manufacturing method of the liquid cooling jacket which concerns on this embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step is a step of preparing the jacket body 2 and the sealing body 3.
  • the jacket main body 2 is mainly configured by a bottom portion 10, a peripheral wall portion 11, and a plurality of support columns 15.
  • the jacket body 2 is formed mainly including the first aluminum alloy.
  • the first aluminum alloy for example, an aluminum alloy cast material such as JISH5302 ADC12 (Al-Si-Cu system) is used.
  • the bottom portion 10 is a plate-like member exhibiting a rectangular shape in a plan view.
  • the peripheral wall portion 11 is a wall portion rising from the peripheral portion of the bottom portion 10 in a rectangular frame shape.
  • a circumferential wall stepped portion 12 is formed on the inner peripheral edge of the circumferential wall portion 11.
  • the peripheral wall stepped portion 12 is configured of a stepped bottom surface 12 a and a stepped side surface 12 b rising from the stepped bottom surface 12 a.
  • the stepped side surface 12 b is inclined so as to extend outward from the stepped bottom surface 12 a toward the opening.
  • the inclination angle ⁇ of the stepped side surface 12b may be set as appropriate, but is, for example, 3 ° to 30 ° with respect to the vertical surface.
  • a recess 13 is formed by the bottom portion 10 and the peripheral wall portion 11.
  • the columns 15 stand vertically from the bottom 10.
  • the number of columns 15 is not particularly limited, but four are formed in the present embodiment.
  • pillar 15 is cylindrical shape in this embodiment, another shape may be sufficient.
  • the end face 15 a of the support column 15 is formed at the same height position as the stepped bottom surface 12 a of the peripheral wall stepped portion 12.
  • the sealing body 3 is a plate-like member that seals the opening of the jacket body 2.
  • the sealing body 3 is sized to be placed on the peripheral wall step portion 12.
  • the plate thickness of the sealing body 3 is substantially equal to the height of the stepped side surface 12 b.
  • the sealing body 3 is formed mainly including the second aluminum alloy.
  • the second aluminum alloy is a material having a hardness lower than that of the first aluminum alloy.
  • the second aluminum alloy is formed of, for example, an aluminum alloy wrought material such as JIS A1050, A1100, A6063 or the like.
  • the placing step is a step of placing the sealing body 3 on the jacket main body 2 as shown in FIG.
  • the back surface 3b of the sealing body 3 is mounted on the bottom surface 12a of the step.
  • the stepped side surface 12b and the outer peripheral side surface 3c of the sealing body 3 are butted to form a first abutting portion J1.
  • the first abutment portion J1 has both a case where the step side surface 12b and the outer peripheral side surface 3c of the sealing body 3 are in surface contact, and a case where the V-shaped cross section is butted as in the present embodiment. May be included.
  • the step bottom surface 12a and the back surface 3b of the sealing body 3 are butted to form a second butted portion J2.
  • the sealing body 3 when the sealing body 3 is placed, the peripheral wall end face 11 a of the peripheral wall portion 11 and the surface 3 a of the sealing body 3 become flush. Further, in the mounting step, the back surface 3b of the sealing body 3 and the end face 15a of the support 15 are butted to form a third butted portion J3.
  • the first main bonding step is a step of friction stir welding the first abutting portion J ⁇ b> 1 using a rotary tool F.
  • the rotating tool F includes a connecting portion F1 and a stirring pin F2.
  • the rotating tool F is formed of, for example, a tool steel.
  • the connecting portion F1 is a portion connected to the rotation shaft of the friction stir device (not shown).
  • the connecting portion F1 has a cylindrical shape, and a screw hole (not shown) in which a bolt is fastened is formed.
  • the stirring pin F2 is suspended from the connecting portion F1 and is coaxial with the connecting portion F1.
  • the stirring pin F2 is tapered as it separates from the connecting portion F1.
  • a flat surface F3 which is perpendicular to the rotation center axis C and flat is formed at the tip of the stirring pin F2. That is, the outer surface of the stirring pin F2 is constituted by the outer peripheral surface which becomes tapered and the flat surface F3 formed at the tip.
  • the inclination angle ⁇ between the rotation center axis C and the outer peripheral surface of the stirring pin F2 may be appropriately set, for example, in the range of 5 ° to 30 °. It is set so as to be the same as the inclination angle ⁇ of the step side surface 12b.
  • a spiral groove is engraved on the outer peripheral surface of the stirring pin F2.
  • the spiral groove in order to rotate the rotation tool F to the right, is formed in the counterclockwise direction from the proximal end toward the distal end.
  • 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 in this case is formed clockwise as viewed from above when the spiral groove is traced from the proximal end to the distal end.
  • the insertion depth is set so that the flat surface F3 of the stirring pin F2 does not contact the jacket body 2 as well.
  • the "state in which only the stirring pin F2 is in contact with only the sealing body 3" refers to a state in which the outer surface of the stirring pin F2 is not in contact with the jacket main body 2 while performing friction stirring. This can also include the case where the distance between the outer peripheral surface of the step and the step side surface 12b is zero, or the case where the distance between the flat surface F3 of the stirring pin F2 and the step bottom surface 12a is zero.
  • the separation distance L from the stepped side surface 12b to the outer peripheral surface of the stirring pin F2 may be appropriately set according to the materials of the jacket main body 2 and the sealing body 3, the outer peripheral surface of the stirring pin F2 is stepped side surface 12b as in this embodiment.
  • the flat surface F3 is not in contact with the stepped bottom surface 12a, for example, it is preferable to set 0 ⁇ L ⁇ 0.5 mm, preferably 0 ⁇ L ⁇ 0.3 mm.
  • FIG. 5 is a cross-sectional view of the bonding portion after the main bonding step according to the present embodiment.
  • the plasticization area W1 is formed on the sealing body 3 side with the first abutting portion J1 as a boundary. Further, the flat surface F3 of the stirring pin F2 is not in contact with the bottom surface 12a of the step (see FIG. 4), and the plasticizing region W1 is formed to reach the jacket main body 2 beyond the second abutment portion J2. .
  • the second main joining step is a step of friction stir welding the third abutting portion J3 using the rotary tool F as shown in FIGS. 6 and 7.
  • the second main bonding step as shown in FIG. 6, only the stirring pin F2 rotated right is inserted into the start position Sp set on the surface 3a of the sealing body 3, and the sealing body 3 and the connecting portion F1 are separated Move while moving. In other words, friction stirring is performed in a state where the base end of the stirring pin F2 is exposed.
  • the plasticized region W2 is formed on the start-up trajectory of the rotary tool F by hardening the friction-stirred metal.
  • the rotary tool F is relatively moved along the third abutment portion J3 in a state where the stirring pin F2 does not contact the support column 15.
  • the start and end of the plasticization area W2 are overlapped.
  • the flat surface F3 of the stirring pin F2 is not in contact with the end face 15a of the support column 15, but the plasticized area W2 is formed to reach the third abutment portion J3. That is, in the second main joining step, the third abutment portion J3 is plastically fluidized and joined by the frictional heat of the stirring pin F2 and the sealing body 3.
  • the stirring pin F2 of the rotating tool F and the step side surface 12b of the peripheral wall stepped portion 12 are not in contact with each other.
  • the second aluminum alloy mainly on the side of the sealing body 3 of the first butt portion J1 is stirred and plasticized by friction heat with the first side butt portion 12b and the outer peripheral side surface 3c of the sealing body 3 in the first butt portion J1. Can be joined.
  • the stirring pin F2 since only the stirring pin F2 is brought into contact with only the sealing body 3 to perform friction stirring, the mixing of the first aluminum alloy from the jacket main body 2 to the sealing body 3 is hardly caused.
  • the second aluminum alloy on the side of the sealing body 3 is friction-stirred mainly in the first abutting portion J1, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface 12b of the jacket main body 2 is inclined outward, the contact between the stirring pin F2 and the jacket main body 2 can be easily avoided. Further, in this embodiment, since the inclination angle ⁇ of the step side surface 12b and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface of the stirring pin F2 are parallel to each other), The stirring pin F2 and the stepped side surface 12b can be made as close as possible while avoiding contact with the stepped side surface 12b.
  • the rotational direction and the advancing direction of the rotary tool F may be set appropriately, but the jacket main body 2 side becomes the shear side in the plasticization region W1 formed on the movement trajectory of the rotary tool F
  • the rotation direction and the traveling direction of the rotation tool F were set such that the sealing body 3 side was the flow side.
  • the jacket main body 2 side By setting the jacket main body 2 side to be a shear side, the stirring action by the stirring pin F2 around the first abutment portion J1 is enhanced, and a temperature rise in the first abutment portion J1 can be expected, and the first abutment portion J1
  • the stepped side surface 12 b and the outer peripheral side surface 3 c of the sealing body 3 can be joined more reliably.
  • the shear side means the side where the relative velocity of the outer periphery of the rotary tool to the part to be joined is a value obtained by adding the magnitude of the moving velocity to the size of the tangential velocity at the outer periphery of the rotary tool .
  • the flow side refers to the side where the relative speed of the rotating tool relative to the part to be joined becomes low by rotating the rotating tool in the direction opposite to the moving direction of the rotating tool.
  • the first aluminum alloy of the jacket body 2 is a material harder than the second aluminum alloy of the sealing body 3. Thereby, the durability of the liquid cooling jacket 1 can be enhanced. Further, it is preferable that the first aluminum alloy of the jacket main body 2 be an aluminum alloy cast material, and the second aluminum alloy of the sealing body 3 be an aluminum alloy wrought material.
  • the castability, strength, machinability and the like of the jacket main body 2 can be enhanced by using, for example, an Al—Si—Cu based aluminum alloy cast material such as JISH 5302 ADC 12 as the first aluminum alloy.
  • processability and thermal conductivity can be improved by making a 2nd aluminum alloy into JIS A1000 type
  • the flat surface F3 of the agitating pin F2 is not inserted deeper than the stepped bottom surface 12a in the present embodiment, but the joining is achieved by causing the plasticized region W1 to reach the second butt portion J2.
  • the strength can be increased.
  • the friction abutment is performed on the third abutment portion J3 in a state where the agitating pin F2 is in contact with only the sealing body 3.
  • the first aluminum alloy can be prevented from mixing into the sealing body 3 from the support 15 of the jacket main body 2, and the second aluminum alloy on the sealing body 3 side mainly has friction. Since the stirring is performed, a decrease in bonding strength can be suppressed. Moreover, the strength of the liquid cooling jacket can be enhanced by joining the support 15 and the sealing body 3.
  • Either of the first main bonding step and the second main bonding step may be performed first.
  • temporary joining may be performed on at least one of the first butting portion J1 and the second butting portion J2 by friction stirring or welding. By performing the temporary bonding step, it is possible to prevent the openings of the butted parts at the time of the first main bonding step and the second main bonding step.
  • the plate thickness of the sealing body 3 may be set to be larger than the height dimension of the stepped side surface 12 b of the peripheral wall stepped portion 12. Since the first abutment portion J1 is formed to have a gap, there is a possibility that the bonding portion may run short of metal. However, the metal shortage can be compensated for as in the first modification.
  • the outer peripheral side surface 3c of the sealing body 3 may be inclined to provide an inclined surface.
  • the outer peripheral side surface 3c is inclined outward as going from the back surface 3b to the front surface 3a.
  • the inclination angle ⁇ of the outer peripheral side surface 3c is the same as the inclination angle ⁇ of the stepped side surface 12b.
  • the manufacturing method of the liquid cooling jacket which concerns on 2nd embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step, the mounting step, and the second main bonding step are the same as in the first embodiment, and thus the description thereof is omitted.
  • parts different from the first embodiment will be mainly described.
  • the first main bonding step is a step of friction stir welding the first abutting portion J1 using a rotary tool F.
  • this bonding step when the stirring pin F2 is relatively moved along the first abutment portion J1, the outer peripheral surface of the stirring pin F2 is slightly brought into contact with the stepped side surface 12b of the peripheral wall stepped portion 12 and the flat surface F3 is Friction stir welding is performed so as not to be in contact with the bottom surface 12 a of the step.
  • the contact margin of the outer peripheral surface of the stirring pin F2 with respect to the stepped side surface 12b is taken as an offset amount N.
  • the offset amount N is 0 ⁇ N ⁇ 0. It is set between 0.5 mm, preferably between 0 ⁇ N ⁇ 0.25 mm.
  • the stirring pin F2 is received by one side and the other side across the rotation center axis C. Material resistance also differs greatly. Therefore, the plastic fluid material is not stirred in a well-balanced manner, which is a factor that reduces the bonding strength.
  • the contact margin between the outer peripheral surface of the stirring pin F2 and the jacket main body 2 is minimized, the material resistance that the stirring pin F2 receives from the jacket main body 2 can be minimized.
  • the inclination angle ⁇ of the step side surface 12b of the peripheral wall step portion 12 and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface of the stirring pin F2 are parallel).
  • the contact margin between the stirring pin F2 and the step side surface 12b can be made uniform over the height direction.
  • the plate thickness of the sealing body 3 may be increased, or inclined surfaces may be provided on the side surfaces.
  • the first modified example of the fifth embodiment or the fifth embodiment described later may be applied.
  • the manufacturing method of the liquid-cooling jacket which concerns on 3rd embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step, the mounting step, and the second main bonding step are the same as those in the first embodiment, and thus the description thereof is omitted.
  • parts different from the first embodiment will be mainly described.
  • the first main bonding step is a step of friction stir welding the jacket main body 2 and the sealing body 3 by using a rotary tool F as shown in FIG.
  • a rotary tool F as shown in FIG.
  • Friction stir welding is performed in the inserted state.
  • the stirring pin F2 and the stepped side surface 12b of the peripheral wall stepped portion 12 are not in contact with each other, but the first butt is caused by the frictional heat of the sealing body 3 and the stirring pin F2.
  • the second aluminum alloy mainly on the side of the sealing body 3 of the portion J1 is stirred and plasticized, and the stepped side surface 12b and the outer peripheral side surface 3c of the sealing body 3 can be joined at the first abutment portion J1.
  • the stirring pin F2 is brought into contact with only the sealing body 3 to perform friction stirring, and therefore, mixing of the first aluminum alloy from the jacket main body 2 to the sealing body 3 is hardly occurred.
  • the second aluminum alloy on the side of the sealing body 3 is friction-stirred mainly in the first abutting portion J1, so that it is possible to suppress a decrease in bonding strength.
  • the step side surface 12b of the jacket main body 2 is inclined outward, the contact between the stirring pin F2 and the step side surface 12b can be easily avoided. Further, in this embodiment, since the inclination angle ⁇ of the step side surface 12b and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface of the stirring pin F2 are parallel to each other), The stirring pin F2 and the stepped side surface 12b can be made as close as possible while avoiding the contact of the stepped side surface 12b.
  • the outer peripheral surface of the stirring pin F2 is separated from the stepped side surface 12b to perform the friction stir welding, the material resistance that the stirring pin F2 receives on one side and the other side with respect to the rotation center axis C of the stirring pin F2 is not The balance can be reduced. As a result, the plastic flow material is frictionally stirred in a well-balanced manner, so that it is possible to suppress a decrease in bonding strength.
  • the distance from the stepped side surface 12b to the outer peripheral surface of the stirring pin F2 For example, it is preferable to set the separation distance L to 0 ⁇ L ⁇ 0.5 mm, and preferably to set 0 ⁇ L ⁇ 0.3 mm.
  • the lower part of the joint portion can be frictionally stirred more reliably.
  • the entire flat surface F3 of the stirring pin F2 is located on the center side of the sealing body 3 with respect to the outer peripheral side surface 3c of the sealing body 3. As a result, the bonding area of the second abutting portion J2 can be enlarged, and thus the bonding strength can be increased.
  • the plate thickness of the sealing body 3 may be increased, or an inclined surface may be provided on the side surface.
  • the first modified example of the fifth embodiment or the fifth embodiment described later may be applied.
  • the manufacturing method of the liquid cooling jacket which concerns on 4th embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step, the mounting step, and the second main bonding step are the same as those in the first embodiment, and thus the description thereof is omitted.
  • parts different from the third embodiment will be mainly described.
  • the first main joining step is a step of friction stir welding the first abutting portion J1 using a rotary tool F as shown in FIG.
  • this bonding step when the stirring pin F2 is relatively moved along the first abutment portion J1, the outer peripheral surface of the stirring pin F2 is slightly brought into contact with the stepped side surface 12b of the peripheral wall stepped portion 12 and the flat surface F3 is The friction stir welding is performed by inserting it deeper than the bottom surface 12a of the step.
  • the contact margin of the outer peripheral surface of the stirring pin F2 with respect to the stepped side surface 12b is taken as an offset amount N.
  • the offset amount N Is set between 0 ⁇ N ⁇ 1.0 mm, preferably between 0 ⁇ N ⁇ 0.85 mm, more preferably between 0 ⁇ N ⁇ 0.65 mm.
  • the stirring pin F2 is received by one side and the other side across the rotation center axis C. Material resistance also differs greatly. Therefore, the plastic fluid material is not stirred in a well-balanced manner, which is a factor that reduces the bonding strength.
  • the contact margin between the outer peripheral surface of the stirring pin F2 and the jacket main body 2 is minimized, the material resistance that the stirring pin F2 receives from the jacket main body 2 can be reduced.
  • the contact margin with the stepped side surface 12b can be made uniform over the height direction.
  • the lower part of the joint portion can be frictionally stirred more reliably. As a result, it is possible to prevent the occurrence of a void defect or the like in the plasticized region W1, and to increase the bonding strength. That is, both the first butting portion J1 and the second butting portion J2 can be firmly joined.
  • the plate thickness of the sealing body 3 may be increased, or sloped surfaces may be provided on the side surfaces.
  • the first modified example of the fifth embodiment or the fifth embodiment described later may be applied.
  • the rotary tool FA used in the main bonding step includes a connecting portion F1 and a stirring pin F2.
  • the stirring pin F2 is configured to include a flat surface F3 and a protrusion F4.
  • the protrusion F4 is a portion that protrudes downward from the flat surface F3.
  • the shape of the protrusion F4 is not particularly limited, but in the present embodiment, it is cylindrical.
  • a stepped portion is formed by the side surface of the protrusion F4 and the flat surface F3.
  • the tip of the rotary tool FA is inserted deeper than the stepped bottom surface 12a.
  • the plastic fluid material that is friction-stirred along the protrusion F4 and wound up to the protrusion F4 is pressed by the flat surface F3.
  • the bonding strength of the second abutment portion J2 can be increased.
  • the projection F4 (the tip of the stirring pin F2) is set to be inserted deeper than the second abutment J2, but the flat surface F3 is You may set so that it may insert more deeply than the 2nd butting part J2.
  • a preparation step, a placement step, a first main bonding step, and a second main bonding step are performed.
  • the preparation step, the mounting step, and the first main bonding step are the same as those in the first embodiment, and thus the description thereof is omitted.
  • parts different from the first embodiment will be mainly described.
  • the rotary tool F is brought into contact with the support column 15 and is made to make a round along the support column 15 to perform the friction stir welding.
  • friction stir welding is performed while the flat surface F3 of the stirring pin F2 is inserted slightly deeper than the end face 15a of the support 15. According to the second main bonding step, the sealing body 3 and the support 15 can be reliably bonded.
  • the stirring pin F2 is kept in slight contact with the support column 15, the inflow of the first aluminum alloy from the jacket main body 2 side to the sealing body 3 side can be prevented as much as possible.
  • the insertion depth is set such that the projection F4 contacts the support 15 while the flat surface F3 of the rotary tool FA is positioned above the end surface 15a of the support 15.
  • the plastic fluid material that is friction-stirred along the protrusion F4 and wound up to the protrusion F4 is pressed by the flat surface F3.
  • the protrusion F4 (the tip of the stirring pin F2) is set to be inserted deeper than the third abutment portion J3, but the flat surface F3 is It may be set to be inserted deeper than the third abutment portion J3.
  • the manufacturing method of the liquid cooling jacket which concerns on the 3rd modification of 1st embodiment is demonstrated.
  • the third modification is different from the first embodiment in that the temporary bonding step, the first main bonding step, and the second main bonding step are performed using a cooling plate.
  • the third modified example of the first embodiment parts different from the first embodiment will be mainly described.
  • the jacket main body 2 is fixed to the table K when performing the fixing step.
  • the table K is composed of a substrate K1 having a rectangular parallelepiped shape, clamps K3 formed at four corners of the substrate K1, and a cooling pipe WP disposed inside the substrate K1.
  • the table K is a member which restrains the jacket body 2 so as not to move and functions as a "cooling plate" in the claims.
  • the cooling pipe WP is a tubular member embedded inside the substrate K1. Inside the cooling pipe WP, a cooling medium for cooling the substrate K1 flows.
  • the arrangement position of the cooling pipe WP that is, the shape of the cooling flow path through which the cooling medium flows is not particularly limited, but in the third modification, it has a planar shape along the movement trajectory of the rotary tool F in the first main joining step. There is. That is, when viewed in plan, the cooling pipe WP is disposed such that the cooling pipe WP and the first abutment portion J1 substantially overlap.
  • friction stir welding may be performed while flowing a cooling medium also to the inside of the jacket main body 2.
  • the manufacturing method of the liquid cooling jacket concerning the 4th modification of a first embodiment is explained.
  • the differences from the first embodiment will be mainly described.
  • the fourth modification uses a table KA.
  • the table KA is composed of a substrate KA1 in the form of a rectangular parallelepiped, a spacer KA2 formed at the center of the substrate KA1, and clamps KA3 formed at the four corners of the substrate KA1.
  • the spacer KA2 may be integral with or separate from the substrate KA1.
  • the jacket body 2 and the sealing body 3 integrated by performing the temporary bonding step are fixed to the table KA by the clamp KA3.
  • the plasticizing region W is formed by the temporary joining process.
  • FIG. 17B when the jacket body 2 and the sealing body 3 are fixed to the table KA, the bottom portion 10 of the jacket body 2, the peripheral wall end face 11a and the surface 3a of the sealing body 3 are curved upward.
  • the first side 21 of the wall 11A of the jacket body 2, the second side 22 of the wall 11B, the third side 23 of the wall 11C, and the fourth side 24 of the wall 11D are curved. Curve to become.
  • friction stir welding is performed using a rotary tool F.
  • the deformation amount of at least one of the jacket main body 2 and the sealing body 3 is measured, and the insertion depth of the stirring pin F2 is adjusted according to the deformation amount.
  • the movement trajectory of the rotary tool F is moved so as to be a curved line.
  • Heat shrinkage may occur in the plasticized areas W1 and W2 due to the heat input of friction stir welding, and the sealing body 3 side of the liquid-cooled jacket 1 may be deformed in a concave shape, but the first main bonding step of the fourth modification
  • the jacket main body 2 and the sealing body 3 are fixed in advance so that tensile stress acts on the peripheral wall end face 11a and the surface 3a. Can be used to flatten the liquid cooling jacket 1.
  • the main joining step is performed with the conventional rotary tool, if the jacket main body 2 and the sealing body 3 are bent in a convex shape, the shoulder portion of the rotary tool contacts the jacket main body 2 and the sealing body 3 to operate There is a problem that sex is bad.
  • the fourth modification since there is no shoulder portion in the rotating tool F, the operability of the rotating tool F is good even when the jacket main body 2 and the sealing body 3 are warped in a convex shape. It becomes.
  • the jacket main body 2 and the sealing body 3 are curved so that all of the first side portion 21 to the fourth side portion 24 are curved, but the present invention is not limited to this.
  • the first side 21 and the second side 22 may be straight, and the third side 23 and the fourth side 24 may be curved.
  • the first side portion 21 and the second side portion 22 may be curved, and the third side portion 23 and the fourth side portion 24 may be curved so as to be straight.
  • the spacer KA2 may have any shape as long as it can be fixed so that the surface sides of the jacket main body 2 and the sealing body 3 are convex. Further, the spacer KA2 may be omitted as long as the surface side of the jacket main body 2 and the sealing body 3 can be fixed so as to be convex.
  • the rotary tool F may be attached to, for example, a robot arm provided with rotary drive means such as a spindle unit at its tip. According to this configuration, the rotation center axis of the rotation tool F can be easily changed to various angles.
  • the jacket main body 2 is formed so that the bottom part 10 and the surrounding wall part 11 may become convex on the surface side, respectively. Moreover, it forms so that the surface 3a of the sealing body 3 may become convex.
  • the table KB includes a substrate KB1 having a rectangular parallelepiped shape, a spacer KB2 disposed at the center of the substrate KB1, clamps KB3 formed at four corners of the substrate KB1, and a cooling pipe WP embedded in the substrate KB1. It is done.
  • the table KB is a member that restrains the jacket body 2 so as not to move and functions as a "cooling plate" in the claims.
  • the spacer KB2 is composed of a curved surface KB2a which is curved to be convex upward, and elevations KB2b and KB2b which are formed at both ends of the curved surface KB2a and rise from the substrate KB1.
  • the first side portion Ka and the second side portion Kb of the spacer KB2 are curved, and the third side portion Kc and the fourth side portion Kd are straight.
  • the cooling pipe WP is a tubular member embedded inside the substrate KB1.
  • a cooling medium for cooling the substrate KB1 flows in the cooling pipe WP.
  • the arrangement position of the cooling pipe WP that is, the shape of the cooling flow passage through which the cooling medium flows is not particularly limited, but in the fifth modification, it has a planar shape along the movement trajectory of the rotary tool F in the first main joining step. There is. That is, when viewed in plan, the cooling pipe WP is disposed such that the cooling pipe WP and the first abutment portion J1 substantially overlap.
  • the jacket main body 2 and the sealing body 3 which are temporarily joined and integrated are fixed to the table KB by the clamp KB3. More specifically, it is fixed to the table KB so that the back surface of the bottom portion 10 of the jacket body 2 is in surface contact with the curved surface KB 2 a.
  • the jacket main body 2 is fixed to the table KB, the first side 21 of the wall 11A of the jacket main body 2 and the second side 22 of the wall 11B become curved, and the third side 23 of the wall 11C and the wall 11D Curved so that the fourth side 24 of the
  • first main bonding step and the second main bonding step of the fifth modification friction stir welding is performed on the first butting portion J1 and the second butting portion J2 using the rotary tool F.
  • the deformation amount of at least one of the jacket main body 2 and the sealing body 3 is measured, and the insertion depth of the stirring pin F2 is adjusted according to the deformation amount.
  • the movement trajectory of the rotary tool F is moved so as to be a curve or a straight line. By doing this, the depth and width of the plasticized region W1 can be made constant.
  • the curved surface KB2a of the spacer KB2 is in surface contact with the concave back surface of the bottom portion 10 of the jacket main body 2.
  • friction stir welding can be performed, cooling the jacket main body 2 and the sealing body 3 more effectively. Since the frictional heat in the friction stir welding can be suppressed low, the deformation of the liquid cooling jacket due to the thermal contraction can be reduced. Thereby, when forming the jacket main body 2 and the sealing body 3 in a convex shape in the preparation process, the curvature of the jacket main body 2 and the sealing body 3 can be reduced.
  • the jacket main body 2 and the sealing body 3 were curved so that the 1st side part 21 and the 2nd side part 22 might become a curve, it is not limited to this.
  • a spacer KB2 having a spherical surface may be formed, and the rear surface of the bottom portion 10 of the jacket body 2 may be in surface contact with the spherical surface.
  • all of the first side 21 to the fourth side 24 are curved.
  • the manufacturing method of the liquid cooling jacket which concerns on this embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step is a step of preparing the jacket body 2 and the sealing body 3.
  • the placement process is equivalent to that of the first embodiment.
  • the first main bonding step is a step of friction stir welding the first abutting portion J1 using the rotary tool FA.
  • the rotary tool FA is configured of a connecting portion F1 and a stirring pin F2.
  • the rotating tool FA is formed of, for example, a tool steel.
  • the connecting portion F1 is a portion connected to the rotation shaft of the friction stir device (not shown).
  • the connecting portion F1 has a cylindrical shape, and a screw hole (not shown) in which a bolt is fastened is formed.
  • the stirring pin F2 is suspended from the connecting portion F1 and is coaxial with the connecting portion F1. Moreover, the stirring pin F2 is provided with the flat surface F3 and the projection part F4. The stirring pin F2 is tapered as it separates from the connecting portion F1. At the tip of the stirring pin F2, a flat surface F3 which is perpendicular to the central axis C of rotation and is flat is formed.
  • the protruding portion F4 is a portion protruding downward from the central portion of the flat surface F3.
  • the shape of the protrusion F4 is not particularly limited, but in the present embodiment, it is cylindrical.
  • a stepped portion is formed by the side surface of the protrusion F4 and the flat surface F3.
  • the outer surface of the stirring pin F2 is configured by the outer peripheral surface F5 to be tapered, the flat surface F3 formed at the tip, and the projection F4 projecting downward from the central portion of the flat surface F3.
  • the inclination angle ⁇ between the rotation center axis C and the outer peripheral surface F5 of the stirring pin F2 may be appropriately set, for example, in the range of 5 ° to 30 °, but in the present embodiment, the peripheral wall step portion It is set to be the same as the inclination angle ⁇ (see FIG. 2) of the twelve step side surfaces 12b. Spiral grooves are formed on the outer peripheral surface F5 of the stirring pin F2.
  • the insertion depth of the stirring pin F2 is set so that the front end surface F6 of the projection F4 is inserted into the peripheral wall step 12 without the flat surface F3 of the stirring pin F2 contacting the step bottom surface 12a.
  • the rotary tool FA is placed around the opening in a state where the projection F4 is in contact with the jacket body 2 without the outer peripheral surface F5 and the flat surface F3 of the stirring pin F2 contacting the jacket body 2 A round is made along the first abutment portion J1.
  • the state in which the outer peripheral surface F5 and the flat surface F3 of the stirring pin F2 are not in contact with the jacket main body 2 means that the distance between the outer peripheral surface F5 of the stirring pin F2 and the stepped side surface 12b is zero or the stirring pin F2 It may also include the case where the distance between the flat surface F3 of and the step bottom surface 12a is zero.
  • the separation distance L from the stepped side surface 12b to the outer peripheral surface F5 of the stirring pin F2 may be appropriately set depending on the materials of the jacket main body 2 and the sealing body 3, but the outer peripheral surface F5 of the stirring pin F2 is stepped as in this embodiment.
  • the flat surface F3 is not in contact with the step bottom surface 12a without contacting the side surface 12b, for example, it is preferable to set 0 ⁇ L ⁇ 0.5 mm, preferably 0 ⁇ L ⁇ 0.3 mm. .
  • FIG. 22 is a cross-sectional view of the bonding portion after the first main bonding step according to the present embodiment.
  • the plasticized region W1 is formed on the sealing body 3 side with the first abutting portion J1 as a boundary, and is formed to reach the jacket main body 2 beyond the second abutting portion J2.
  • the second main joining step is a step of friction stir welding the third abutting portion J3 using the rotary tool FA as shown in FIG.
  • the second main joining step as shown in FIG. 23, only the stirring pin F2 rotated right is inserted into the start position Sp set on the surface 3a of the sealing body 3, and the sealing body 3 and the connecting portion F1 are separated Move while moving. In other words, friction stirring is performed in a state where the base end of the stirring pin F2 is exposed.
  • a plasticized region W2 is formed on the start-up trajectory of the rotary tool FA by hardening the friction-stirred metal.
  • the projection F4 of the stirring pin F2 is in contact with the end face 15a of the support 15.
  • the insertion depth is set such that the lower portion of the projection F4 is inserted into the support 15 without the flat surface F3 of the stirring pin F2 contacting the end surface 15a of the support 15.
  • the rotary tool FA is made to go around along the third abutment portion J3 while only the protrusion F4 is inserted into the support 15 without the flat surface F3 of the stirring pin F2 contacting the support 15. . More specifically, in the second main bonding step, the rotary tool FA is made to go around the inside along the outer edge of the third abutment portion J3.
  • the state in which the flat surface F3 of the stirring pin F2 is not in contact with the end surface 15a of the support 15 can also include the case where the distance between the flat surface F3 of the stirring pin F2 and the end surface 15a of the support 15 is zero.
  • the rotary tool FA When the rotary tool FA is made to go around the post 15, the start and end of the plasticization area W2 are overlapped.
  • the rotary tool FA may be gradually raised and withdrawn on the surface 3 a of the sealing body 3.
  • the plasticization area W2 is formed to reach the support 15 beyond the third abutment portion J3.
  • the protrusion F4 of the stirring pin F2 is brought into contact with the end face 15a of the support 15 in the second main joining step
  • the mixing of the first aluminum alloy into the stopper 3 can be minimized.
  • the second aluminum alloy on the side of the sealing body 3 is mainly friction-stirred, so that it is possible to suppress a decrease in bonding strength.
  • the plastic fluid material which is frictionally stirred along the protrusion F4 of the stirring pin F2 and wound up to the protrusion F4 is pressed by the flat surface F3 of the stirring pin F2.
  • the friction stir welding can be performed more reliably around the protrusion F4, and the oxide film of the third butt joint J3 is surely divided, so that the bonding strength of the third butt joint J3 can be increased.
  • the plasticization region is compared with the case where the flat surface F3 of the stirring pin F2 is inserted deeper than the third abutment portion J3.
  • the width of W2 can be reduced. As a result, it is possible to prevent the plastic fluid material from flowing out from the third abutment portion J3, and the end face 15a of the support column 15 can also be set small.
  • the stirring pin F2 of the rotary tool FA and the stepped side surface 12b of the peripheral wall stepped portion 12 are not in contact with each other.
  • the second aluminum alloy mainly on the side of the sealing body 3 of the first abutting portion J1 is stirred and plasticized by frictional heat, and the stepped side surface 12b and the outer peripheral side surface 3c of the sealing body 3 can be joined.
  • the second aluminum alloy on the sealing body 3 side is mainly subjected to friction stirring, so that it is possible to suppress a decrease in bonding strength.
  • the stirring pin F2 and the stepped side surface 12b can be made as close as possible while avoiding contact between the stirring pin F2 and the stepped side surface 12b.
  • the rotational direction and the advancing direction of the rotary tool FA may be set as appropriate, but the jacket main body 2 side becomes the shear side in the plasticization region W1 formed on the movement trajectory of the rotary tool FA.
  • the rotation direction and the traveling direction of the rotation tool FA were set such that the sealing body 3 side was the flow side.
  • the first main joining step in order to keep the projection F4 of the stirring pin F2 in contact with the step bottom 12a of the peripheral wall step 12, mixing of the first aluminum alloy from the jacket main body 2 into the sealing body 3 can be minimized. It can be reduced. As a result, in the second abutment portion J2, the second aluminum alloy on the side of the sealing body 3 is mainly friction-stirred, so that it is possible to suppress a decrease in bonding strength.
  • the plastic fluid material which is frictionally stirred along the protrusion F4 of the stirring pin F2 and wound up to the protrusion F4 is pressed by the flat surface F3 of the stirring pin F2.
  • the friction stir welding can be performed more reliably around the protrusion F4, and the oxide film of the second butted portion J2 is surely divided, so that the bonding strength of the second butted portion J2 can be increased.
  • the plasticization region is compared with the case where the flat surface F3 of the stirring pin F2 is inserted deeper than the second abutment portion J2.
  • the width of W1 can be reduced. Thereby, the plastic fluid material can be prevented from flowing out from the second abutment portion J2, and the step bottom surface 12a of the peripheral wall step portion 12 can also be set small.
  • the first aluminum alloy of the jacket body 2 is a material harder than the second aluminum alloy of the sealing body 3. Thereby, the durability of the liquid cooling jacket 1 can be enhanced. Further, it is preferable that the first aluminum alloy of the jacket main body 2 be an aluminum alloy cast material, and the second aluminum alloy of the sealing body 3 be an aluminum alloy wrought material.
  • the castability, strength, machinability and the like of the jacket main body 2 can be enhanced by using, for example, an Al—Si—Cu based aluminum alloy cast material such as JISH 5302 ADC 12 as the first aluminum alloy.
  • processability and thermal conductivity can be improved by making a 2nd aluminum alloy into JIS A1000 type
  • Either of the first main bonding step and the second main bonding step may be performed first. Moreover, you may perform temporary joining by friction stirring or welding in the 1st butt
  • the plate thickness of the sealing body 3 may be larger than the step side surface 12b as in the first modified example of the first embodiment.
  • the outer peripheral side surface 3c of the sealing body 3 may be inclined to bring the stepped side surface 12b and the outer peripheral side surface 3c into surface contact.
  • friction stir is performed by bringing the protrusion F4 into contact with the second abutment portion J2, but friction stir is performed without bringing the protrusion F4 into contact with the second butt joint J2. You may go.
  • the manufacturing method of the liquid-cooling jacket which concerns on 7th embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step and the placement step are the same as in the first embodiment, and therefore the description thereof is omitted.
  • parts different from the sixth embodiment will be mainly described.
  • the flat surface F3 of the stirring pin F2 is brought into contact with the stepped bottom surface 12a, and in the second main bonding step, the flat surface F3 of the stirring pin F2 is not in contact with the end face 15a of the support 15. Good. Further, in the first main joining step, the flat surface F3 of the stirring pin F2 is brought into contact with the end face 15a of the support 15 in the second main joining step without bringing the flat surface F3 of the stirring pin F2 into contact with the step bottom surface 12a. It is also good.
  • the manufacturing method of the liquid-cooling jacket which concerns on 8th embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step and the placement step are the same as in the first embodiment, and therefore the description thereof is omitted.
  • parts different from the sixth embodiment will be mainly described.
  • the tip surface F6 of the projection F4 of the stirring pin F2 is brought into contact with the step bottom surface 12a, and in the second main joining step, the projection F4 of the stirring pin F2 is inserted into the support 15 Good. Further, in the first main joining step, the projection F4 of the stirring pin F2 is inserted into the peripheral wall step portion 12, and in the second main joining step, the end face F6 of the projection F4 of the stirring pin F2 is the end face 15a of the support 15 You may make it contact.
  • the friction stir welding may be performed by slightly contacting the outer peripheral surface F5 of the stirring pin F2 with the step side 12b of the peripheral wall step 12 .
  • the contact margin of the outer peripheral surface F5 of the stirring pin F2 with respect to the stepped side surface 12b is taken as an offset amount N.
  • the offset amount N is 0 ⁇ N ⁇ It is preferable to set between 0.5 mm, preferably between 0 ⁇ N ⁇ 0.25 mm.
  • the first abutment portion J1 can be joined reliably, and the jacket main body 2 The mixing of the first aluminum alloy into the sealing body 3 can be minimized.
  • the contact margin between the stirring pin F2 and the stepped side surface 12b is extended in the height direction. It can be made uniform. Thereby, even when the outer peripheral surface F5 of the stirring pin F2 is slightly brought into contact with the stepped side surface 12b of the peripheral wall stepped portion 12, the plastic flow material is stirred in a well-balanced manner, so that the strength reduction of the joint can be suppressed. .
  • the friction stir welding is performed in a state in which the protrusion F4 is in contact with the step bottom surface 12a, so that the oxide film of the second butted portion J2 is surely divided.
  • the bonding strength of the second abutment portion J2 can be increased.
  • the first aluminum alloy from the jacket main body 2 to the sealing body 3 is Contamination can be reduced as much as possible.
  • the width of the plasticized region W1 can be made smaller than when the flat surface F3 is inserted deeper than the step bottom surface 12a, the plastic flow material can be prevented from flowing out from the second abutment portion J2, and the step is The width of the bottom surface 12a can be reduced.
  • the third to fifth modifications of the first embodiment described above may be applied. Further, in the first main joining step of the present embodiment, friction stir is performed by bringing the protrusion F4 into contact with the second abutment portion J2, but friction stir is performed without bringing the protrusion F4 into contact with the second butt joint J2. You may go.
  • the mounting step is a step of mounting the sealing body 3 on the jacket main body 2 as shown in FIG.
  • the back surface 3b of the sealing body 3 is mounted on the bottom surface 12a of the step.
  • the stepped side surface 12b and the outer peripheral side surface 3c of the sealing body 3 are butted to form a first abutting portion J1.
  • the first abutment portion J1 has both a case where the step side surface 12b and the outer peripheral side surface 3c of the sealing body 3 are in surface contact, and a case where the V-shaped cross section is butted as in the present embodiment. May be included.
  • the step bottom surface 12a and the back surface 3b of the sealing body 3 are butted (overlapped) to form a second butted portion J2.
  • the surface 3 a of the sealing body 3 protrudes with a level difference above the peripheral wall end surface (upper end surface) 11 a of the peripheral wall portion 11. Further, in the mounting step, the back surface 3b of the sealing body 3 and the end face 15a of the support 15 are butted to form a third butted portion J3.
  • the first main joining step is a step of friction stir welding the first abutting portion J1 using the rotary tool F.
  • the stirring pin F2 rotated right is inserted into the sealing body 3 and the sealing body 3 and the connecting portion F1 are separated. Move it. In other words, friction stirring is performed in a state where the base end of the stirring pin F2 is exposed.
  • a plasticized region W1 is formed on the movement trajectory of the rotary tool F by hardening of the friction-stirred metal.
  • the stirring pin F2 is inserted into the start position Sp set in the sealing body 3, and the rotation tool F is moved relative to the sealing body 3 around the right.
  • the stirring pin F2 is brought into contact with only the sealing body 3 to make a round along the first abutment portion J1.
  • the insertion depth is set so that the flat surface F3 of the stirring pin F2 does not contact the jacket body 2 as well.
  • FIG. 33 is a cross-sectional view of the bonding portion after the main bonding step according to the present embodiment.
  • the plasticization area W1 is formed on the sealing body 3 side with the first abutting portion J1 as a boundary. Further, the flat surface F3 of the stirring pin F2 is not in contact with the bottom surface 12a of the step (see FIG. 32), and the plasticization region W1 is formed to reach the jacket main body 2 beyond the second abutment portion J2. .
  • the surface of the plasticization region W1 is continuously inclined from the surface 3a of the sealing body 3 to the peripheral wall end surface 11a of the peripheral wall portion 11.
  • the second main bonding step is a step of friction stir welding the third abutting portion J3 (see FIG. 35) using the rotary tool F, as shown in FIGS.
  • the second main bonding step as shown in FIG. 34, only the stirring pin F2 rotated right is inserted into the start position Sp set on the surface 3a of the sealing body 3, and the sealing body 3 and the connecting portion F1 are separated Move while moving. In other words, friction stirring is performed in a state where the base end of the stirring pin F2 is exposed.
  • the plasticized region W2 is formed on the start-up trajectory of the rotary tool F by hardening the friction-stirred metal.
  • the rotary tool F is relatively moved along the third abutting portion J3 in a state where the stirring pin F2 does not contact the support column 15.
  • the start and end of the plasticization area W2 are overlapped.
  • the flat surface F3 of the stirring pin F2 is not in contact with the end face 15a of the support column 15, but the plasticized area W2 is formed to reach the third abutment portion J3. That is, in the second main joining step, the third abutment portion J3 is plastically fluidized and joined by the frictional heat of the stirring pin F2 and the sealing body 3.
  • the stirring pin F2 of the rotating tool F and the step side surface 12b of the peripheral wall stepped portion 12 are not in contact with each other.
  • the second aluminum alloy mainly on the side of the sealing body 3 of the first butt portion J1 is stirred and plasticized by friction heat with the first side butt portion 12b and the outer peripheral side surface 3c of the sealing body 3 in the first butt portion J1. Can be joined.
  • the stirring pin F2 since only the stirring pin F2 is brought into contact with only the sealing body 3 to perform friction stirring, the mixing of the first aluminum alloy from the jacket main body 2 to the sealing body 3 is hardly caused.
  • the second aluminum alloy on the side of the sealing body 3 is friction-stirred mainly in the first abutting portion J1, so that it is possible to suppress a decrease in bonding strength.
  • the plate thickness of the sealing body 3 is made larger than the height dimension of the stepped side 12b of the peripheral wall stepped portion 12, the stepped side 12b of the peripheral side 3c of the sealed body 3 before bonding and the peripheral wall stepped portion 12
  • the metal of the outer peripheral upper portion of the sealing body 3 flows plastically into the gap between the two. As a result, the metal shortage is eliminated, and the gap can be closed. Therefore, since the sealing body 3 and the jacket main body 2 can be joined reliably and generation
  • the stirring pin F2 since the step side surface 12b of the jacket main body 2 is inclined outward, the contact between the stirring pin F2 and the jacket main body 2 can be easily avoided. Further, in the present embodiment, since the inclination angle ⁇ of the step side surface 12b and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface F10 of the stirring pin F2 are parallel), the stirring pin F2 The stirring pin F2 and the stepped side surface 12b can be made as close as possible while avoiding contact with the stepped side surface 12b.
  • the rotational direction and the advancing direction of the rotary tool F may be set appropriately, but the jacket main body 2 side becomes the shear side in the plasticization region W1 formed on the movement trajectory of the rotary tool F
  • the rotation direction and the traveling direction of the rotation tool F were set such that the sealing body 3 side was the flow side.
  • the jacket main body 2 side By setting the jacket main body 2 side to be a shear side, the stirring action by the stirring pin F2 around the first abutment portion J1 is enhanced, and a temperature rise in the first abutment portion J1 can be expected, and the first abutment portion J1
  • the stepped side surface 12 b and the outer peripheral side surface 3 c of the sealing body 3 can be joined more reliably.
  • the flat surface F3 of the stirring pin F2 is not inserted deeper than the stepped bottom surface 12a, but the joining is achieved by causing the plasticized region W1 to reach the second butted portion J2.
  • the strength can be increased.
  • the friction abutment is performed on the third abutment portion J3 in a state where the agitating pin F2 is in contact with only the sealing body 3.
  • the first aluminum alloy can be prevented from mixing into the sealing body 3 from the support 15 of the jacket main body 2, and the second aluminum alloy on the sealing body 3 side mainly has friction. Since the stirring is performed, a decrease in bonding strength can be suppressed. Moreover, the strength of the liquid cooling jacket can be enhanced by joining the support 15 and the sealing body 3.
  • Either of the first main bonding step and the second main bonding step may be performed first.
  • temporary joining may be performed on at least one of the first butting portion J1 and the second butting portion J2 by friction stirring or welding. By performing the temporary bonding step, it is possible to prevent the openings of the butted parts at the time of the first main bonding step and the second main bonding step.
  • pillar 15 of the jacket main body 2 you may abbreviate
  • the manufacturing method of the liquid-cooling jacket which concerns on 11th embodiment performs a preparatory process, a mounting process, a 1st main joining process, and a 2nd main joining process.
  • the preparation step, the mounting step, and the second main bonding step are the same as those in the tenth embodiment, and thus the description thereof is omitted.
  • parts different from the tenth embodiment will be mainly described.
  • the first main bonding step is a step of friction stir welding the first abutting portion J1 using a rotary tool F.
  • the first main joining step when the stirring pin F2 is relatively moved along the first abutment portion J1, the outer peripheral surface F10 of the stirring pin F2 is slightly brought into contact with the step side 12b of the peripheral wall step 12 and is flat The friction stir welding is performed so that the surface F3 is not in contact with the stepped bottom surface 12a.
  • the contact margin of the outer peripheral surface F10 of the stirring pin F2 with respect to the stepped side surface 12b is taken as an offset amount N.
  • the inclination angle ⁇ of the step side surface 12b of the peripheral wall step portion 12 and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface F10 of the stirring pin F2 are parallel). Therefore, the contact margin between the stirring pin F2 and the stepped side surface 12b can be made uniform over the height direction. Thereby, in the present embodiment, since the plastic fluid material is stirred in a well-balanced manner, it is possible to suppress a decrease in strength of the joint.
  • the plate thickness of the sealing body 3 is made larger than the height dimension of the step side surface 12b of the peripheral wall step portion 12, so that the sealing body 3 is the same as the tenth embodiment.
  • the metal of the outer peripheral upper portion of the sealing body 3 flows plastically and flows. Therefore, the metal shortage is eliminated and the gap can be closed.
  • the sealing body 3 and the jacket main body 2 can be reliably joined and the generation of a cavity can be prevented, the bonding strength between the sealing body 3 and the jacket main body 2 can be enhanced.
  • the heat exchange efficiency of the liquid cooling jacket 1 can be improved by increasing the plate thickness of the sealing body 3.
  • the first main bonding step is a step of friction stir welding the jacket body 2 and the sealing body 3 using the rotary tool F.
  • this bonding step when the stirring pin F2 is relatively moved along the first abutment portion J1, the outer peripheral surface F10 of the stirring pin F2 is not in contact with the stepped side surface 12b, and the flat surface F3 is lower than the stepped bottom surface 12a. Friction stir welding is performed in the state of being deeply inserted.
  • the stirring pin F2 and the stepped side surface 12b of the peripheral wall stepped portion 12 are not in contact with each other, but the first butt is caused by the frictional heat of the sealing body 3 and the stirring pin F2.
  • the second aluminum alloy mainly on the side of the sealing body 3 of the portion J1 is stirred and plasticized, and the stepped side surface 12b and the outer peripheral side surface 3c of the sealing body 3 can be joined at the first abutment portion J1.
  • the stirring pin F2 is brought into contact with only the sealing body 3 to perform friction stirring, and therefore, mixing of the first aluminum alloy from the jacket main body 2 to the sealing body 3 is hardly occurred.
  • the second aluminum alloy on the side of the sealing body 3 is friction-stirred mainly in the first abutting portion J1, so that it is possible to suppress a decrease in bonding strength.
  • the plate thickness of the sealing body 3 is made larger than the height dimension of the step side surface 12b of the peripheral wall step portion 12, so that the sealing body 3 is the same as the tenth embodiment.
  • the metal of the outer peripheral upper portion of the sealing body 3 flows plastically and flows. Therefore, the metal shortage is eliminated and the gap can be closed.
  • the sealing body 3 and the jacket main body 2 can be reliably joined and the generation of a cavity can be prevented, the bonding strength between the sealing body 3 and the jacket main body 2 can be enhanced.
  • the heat exchange efficiency of the liquid cooling jacket 1 can be improved by increasing the plate thickness of the sealing body 3.
  • the stirring pin F2 since the step side surface 12b of the jacket main body 2 is inclined outward, the contact between the stirring pin F2 and the step side surface 12b can be easily avoided. Further, in the present embodiment, since the inclination angle ⁇ of the step side surface 12b and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface F10 of the stirring pin F2 are parallel), the stirring pin F2 The stirring pin F2 and the stepped side surface 12b can be made as close as possible while avoiding the contact of the stepped side surface 12b.
  • the material resistance received by the stirring pin F2 on one side and the other side with respect to the rotation center axis C of the stirring pin F2 Imbalance can be reduced.
  • the plastic flow material is frictionally stirred in a well-balanced manner, so that it is possible to suppress a decrease in bonding strength.
  • the outer peripheral surface F10 of the stirring pin F2 when the outer peripheral surface F10 of the stirring pin F2 is not in contact with the stepped side surface 12b and the flat surface F3 is inserted deeper than the stepped bottom surface 12a, the outer peripheral surface F10 of the stirring pin F2 from the stepped side surface 12b It is preferable to set the separation distance L up to, for example, 0 ⁇ L ⁇ 0.5 mm, preferably 0 ⁇ L ⁇ 0.3 mm.
  • the second abutment portion J2 can be frictionally stirred more reliably. As a result, it is possible to prevent the occurrence of a void defect or the like in the plasticized region W1, and to increase the bonding strength. Further, the entire flat surface F3 of the stirring pin F2 is located on the center side of the sealing body 3 with respect to the outer peripheral side surface 3c of the sealing body 3. As a result, the bonding area of the second abutting portion J2 can be enlarged, and thus the bonding strength can be increased.
  • the thirteenth welding step is a step of friction stir welding the first abutting portion J1 using a rotary tool F, as shown in FIG.
  • this bonding step when the stirring pin F2 is relatively moved along the first abutment portion J1, the outer peripheral surface F10 of the stirring pin F2 is slightly brought into contact with the stepped side surface 12b of the peripheral wall stepped portion 12 and the flat surface F3 The friction stir welding is performed while slightly contacting the step bottom surface 12a.
  • the contact margin of the outer peripheral surface F10 of the stirring pin F2 with respect to the stepped side surface 12b is taken as an offset amount N.
  • the offset amount N is set between 0 ⁇ N ⁇ 1.0 mm, preferably between 0 ⁇ N ⁇ 0.85 mm, more preferably between 0 ⁇ N ⁇ 0.65 mm.
  • the stirring pin F2 is received by one side and the other side across the rotation center axis C. Material resistance also differs greatly. Therefore, the plastic fluid material is not stirred in a well-balanced manner, which is a factor that reduces the bonding strength.
  • the contact margin between the outer peripheral surface F10 of the stirring pin F2 and the jacket main body 2 is made as small as possible, the material resistance that the stirring pin F2 receives from the jacket main body 2 can be reduced.
  • the stirring pin F2 since the inclination angle ⁇ of the step side surface 12b and the inclination angle ⁇ of the stirring pin F2 are the same (the step side surface 12b and the outer peripheral surface F10 of the stirring pin F2 are parallel), the stirring pin F2 The contact margin with the step side surface 12b can be made uniform over the height direction. Thereby, in the present embodiment, since the plastic fluid material is stirred in a well-balanced manner, it is possible to suppress a decrease in strength of the joint.
  • the plate thickness of the sealing body 3 is made larger than the height dimension of the step side surface 12b of the peripheral wall step portion 12, so that the sealing body 3 is the same as the tenth embodiment.
  • the metal of the outer peripheral upper portion of the sealing body 3 flows plastically and flows. Therefore, the metal shortage is eliminated and the gap can be closed.
  • the sealing body 3 and the jacket main body 2 can be reliably joined and the generation of a cavity can be prevented, the bonding strength between the sealing body 3 and the jacket main body 2 can be enhanced.
  • the heat exchange efficiency of the liquid cooling jacket 1 can be improved by increasing the plate thickness of the sealing body 3.
  • the second abutment portion J2 can be frictionally stirred more reliably. As a result, it is possible to prevent the occurrence of a void defect or the like in the plasticized region W1, and to increase the bonding strength. That is, both the first butting portion J1 and the second butting portion J2 can be firmly joined.
  • a method of manufacturing a liquid cooling jacket according to the fourteenth embodiment will be described.
  • a preparation step, a placement step, a first main bonding step, and a second main bonding step are performed.
  • the preparation step, the mounting step, and the first main bonding step are the same as in the tenth embodiment, and therefore the description thereof will be omitted.
  • parts different from the tenth embodiment will be mainly described.
  • the rotary tool F is brought into contact with the support column 15, and is made to make a round along the support column 15, thereby performing friction stir welding.
  • the friction stir welding is performed while slightly contacting the flat surface F3 of the stirring pin F2 with the end face 15a of the support 15.
  • the sealing body 3 and the support 15 can be reliably bonded.
  • the stirring pin F2 is kept in slight contact with the support column 15, the inflow of the first aluminum alloy from the jacket main body 2 side to the sealing body 3 side can be prevented as much as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

La présente invention est caractérisée en ce qu'elle comprend : une étape de préparation consistant à former une partie à différence de niveau à paroi circonférentielle (12) ayant, sur un bord circonférentiel interne d'une partie paroi circonférentielle (11), une surface inférieure à différence de niveau (12a) et une surface latérale à différence de niveau (12b) s'élevant obliquement de façon à s'étendre progressivement vers l'extérieur en direction d'une ouverture ; une étape de chargement consistant à charger un corps d'étanchéité (3) sur un corps principal de chemise (2) ; une première étape d'assemblage consistant à amener un outil rotatif autour d'une première partie en butée (J1) et à réaliser une agitation par friction dans un état dans lequel seule une broche d'agitation rotative est insérée dans le corps d'étanchéité (3) et seule la broche d'agitation est amenée en contact avec la partie d'étanchéité (3) uniquement ; et une seconde étape d'assemblage consistant à réaliser une agitation par friction sur une troisième partie en butée (J3) dans un état dans lequel seule la broche d'agitation rotative est insérée dans la partie d'étanchéité (3) et la broche d'agitation est amenée en contact avec le corps d'étanchéité (3).
PCT/JP2018/023405 2017-10-27 2018-06-20 Procédé de fabrication d'une chemise refroidie par liquide WO2019082435A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880055187.1A CN111093880B (zh) 2017-10-27 2018-06-20 液冷套的制造方法

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2017207819A JP6943140B2 (ja) 2017-10-27 2017-10-27 液冷ジャケットの製造方法
JP2017-207819 2017-10-27
JP2018-025295 2018-02-15
JP2018025295A JP2019136767A (ja) 2018-02-15 2018-02-15 液冷ジャケットの製造方法
JP2018-028831 2018-02-21
JP2018028831A JP6950569B2 (ja) 2018-02-21 2018-02-21 液冷ジャケットの製造方法
JP2018034672A JP6950580B2 (ja) 2018-02-28 2018-02-28 液冷ジャケットの製造方法
JP2018-034672 2018-02-28

Publications (1)

Publication Number Publication Date
WO2019082435A1 true WO2019082435A1 (fr) 2019-05-02

Family

ID=66247231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/023405 WO2019082435A1 (fr) 2017-10-27 2018-06-20 Procédé de fabrication d'une chemise refroidie par liquide

Country Status (2)

Country Link
CN (1) CN111093880B (fr)
WO (1) WO2019082435A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020261610A1 (fr) * 2019-06-28 2020-12-30 日本軽金属株式会社 Procédé d'assemblage par friction-malaxage
WO2021100221A1 (fr) * 2019-11-21 2021-05-27 日本軽金属株式会社 Procédé de fabrication d'une chemise refroidie par liquide
US20210324889A1 (en) * 2018-10-25 2021-10-21 Nhk Spring Co., Ltd. Joined body

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10328855A (ja) * 1997-05-30 1998-12-15 Showa Alum Corp 異種金属が接合された導電性接合体の製造方法
JP2003039183A (ja) * 2001-07-25 2003-02-12 Hitachi Ltd 摩擦攪拌接合方法及び接合体
JP2003225779A (ja) * 2002-02-01 2003-08-12 Takehiko Watanabe 回転ニードルを用いた異種金属材料の接合法
JP2007283379A (ja) * 2006-04-19 2007-11-01 Nippon Sharyo Seizo Kaisha Ltd 被接合部材、接合体及び摩擦攪拌接合方法
JP2010201484A (ja) * 2009-03-05 2010-09-16 Honda Motor Co Ltd 摩擦撹拌接合方法
WO2016132768A1 (fr) * 2015-02-19 2016-08-25 日本軽金属株式会社 Procédé d'assemblage et procédé de fabrication d'un matériau laminé composite
JP2017042817A (ja) * 2015-08-26 2017-03-02 日本軽金属株式会社 液冷ジャケットの製造方法及び液冷ジャケット
WO2017033849A1 (fr) * 2015-08-26 2017-03-02 日本軽金属株式会社 Procédé de fabrication d'une chemise refroidie par un liquide et chemise refroidie par un liquide

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7097091B2 (en) * 2001-07-25 2006-08-29 Hitachi, Ltd. Friction stir welding method and component part welded by the method
JP5136516B2 (ja) * 2009-06-02 2013-02-06 日本軽金属株式会社 密閉容器の製造方法
CN203209851U (zh) * 2013-05-07 2013-09-25 凯迈（洛阳）置业包装有限公司 搅拌摩擦焊搅拌头及其搅拌针
US10471557B2 (en) * 2014-11-05 2019-11-12 Nippon Light Metal Company, Ltd. Method of manufacturing liquid-cooled jacket and liquid-cooled jacket
JP2016215264A (ja) * 2015-05-26 2016-12-22 株式会社東芝 摩擦撹拌接合工具、および摩擦撹拌接合装置
WO2017119232A1 (fr) * 2016-01-06 2017-07-13 日本軽金属株式会社 Procédé de jonction et procédé de fabrication d'une chemise refroidie par liquide

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10328855A (ja) * 1997-05-30 1998-12-15 Showa Alum Corp 異種金属が接合された導電性接合体の製造方法
JP2003039183A (ja) * 2001-07-25 2003-02-12 Hitachi Ltd 摩擦攪拌接合方法及び接合体
JP2003225779A (ja) * 2002-02-01 2003-08-12 Takehiko Watanabe 回転ニードルを用いた異種金属材料の接合法
JP2007283379A (ja) * 2006-04-19 2007-11-01 Nippon Sharyo Seizo Kaisha Ltd 被接合部材、接合体及び摩擦攪拌接合方法
JP2010201484A (ja) * 2009-03-05 2010-09-16 Honda Motor Co Ltd 摩擦撹拌接合方法
WO2016132768A1 (fr) * 2015-02-19 2016-08-25 日本軽金属株式会社 Procédé d'assemblage et procédé de fabrication d'un matériau laminé composite
JP2017042817A (ja) * 2015-08-26 2017-03-02 日本軽金属株式会社 液冷ジャケットの製造方法及び液冷ジャケット
WO2017033849A1 (fr) * 2015-08-26 2017-03-02 日本軽金属株式会社 Procédé de fabrication d'une chemise refroidie par un liquide et chemise refroidie par un liquide

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210324889A1 (en) * 2018-10-25 2021-10-21 Nhk Spring Co., Ltd. Joined body
WO2020261610A1 (fr) * 2019-06-28 2020-12-30 日本軽金属株式会社 Procédé d'assemblage par friction-malaxage
JP2021006351A (ja) * 2019-06-28 2021-01-21 日本軽金属株式会社 摩擦攪拌接合方法
JP7140062B2 (ja) 2019-06-28 2022-09-21 日本軽金属株式会社 摩擦攪拌接合方法
WO2021100221A1 (fr) * 2019-11-21 2021-05-27 日本軽金属株式会社 Procédé de fabrication d'une chemise refroidie par liquide

Also Published As

Publication number Publication date
CN111093880A (zh) 2020-05-01
CN111093880B (zh) 2022-01-14

Similar Documents

Publication Publication Date Title
JP6927128B2 (ja) 液冷ジャケットの製造方法
WO2019193779A1 (fr) Procédé de fabrication d'une chemise refroidie par liquide
WO2019082439A1 (fr) Procédé de fabrication d'une chemise refroidie par liquide
JP6885263B2 (ja) 液冷ジャケットの製造方法
JP6950569B2 (ja) 液冷ジャケットの製造方法
JPWO2018193639A1 (ja) 液冷ジャケットの製造方法
JP6927068B2 (ja) 液冷ジャケットの製造方法
WO2019064848A1 (fr) Procédé de production d'une enveloppe refroidie par liquide
WO2015107716A1 (fr) Procédé de fabrication de chemise refroidie par liquide
WO2019064849A1 (fr) Procédé de production d'une enveloppe refroidie par un liquide
WO2019038938A1 (fr) Procédé de fabrication de chemise refroidie par liquide
WO2015060007A1 (fr) Méthode de fabrication de plaque de transfert de chaleur et méthode de jonction
WO2019082435A1 (fr) Procédé de fabrication d'une chemise refroidie par liquide
JP6828675B2 (ja) 液冷ジャケットの製造方法
JP6943139B2 (ja) 液冷ジャケットの製造方法
JP2019155415A (ja) 液冷ジャケットの製造方法
JP6950580B2 (ja) 液冷ジャケットの製造方法
JP6943140B2 (ja) 液冷ジャケットの製造方法
JP6927134B2 (ja) 液冷ジャケットの製造方法
JP2019155414A (ja) 液冷ジャケットの製造方法
WO2019202754A1 (fr) Procédé de fabrication de chemise refroidie par liquide
WO2020059198A1 (fr) Procédé de fabrication de chemise de refroidissement par liquide
JP2019136767A (ja) 液冷ジャケットの製造方法
JP2019188413A (ja) 液冷ジャケットの製造方法
JP2019202320A (ja) 液冷ジャケットの製造方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18869713

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18869713

Country of ref document: EP

Kind code of ref document: A1