WO2009104426A1 - Procédé de fabrication de plaque de transfert de chaleur - Google Patents

Procédé de fabrication de plaque de transfert de chaleur Download PDF

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Publication number
WO2009104426A1
WO2009104426A1 PCT/JP2009/050132 JP2009050132W WO2009104426A1 WO 2009104426 A1 WO2009104426 A1 WO 2009104426A1 JP 2009050132 W JP2009050132 W JP 2009050132W WO 2009104426 A1 WO2009104426 A1 WO 2009104426A1
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WO
WIPO (PCT)
Prior art keywords
base member
manufacturing
heat transfer
correction
joining
Prior art date
Application number
PCT/JP2009/050132
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English (en)
Japanese (ja)
Inventor
勇人 佐藤
久司 堀
伸城 瀬尾
知広 河本
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 JP2008039652A external-priority patent/JP5071144B2/ja
Priority claimed from JP2008244565A external-priority patent/JP5262508B2/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 CN200980106125.XA priority Critical patent/CN101952079B/zh
Priority to KR1020107020722A priority patent/KR101194097B1/ko
Publication of WO2009104426A1 publication Critical patent/WO2009104426A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—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 using a non-consumable tool, e.g. friction stir welding
    • B23K20/1265—Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers

Definitions

  • the present invention relates to a method of manufacturing a heat transfer plate used for, for example, a heat exchanger, a heating device, a cooling device, or the like.
  • a heat transfer plate arranged in contact with or close to an object to be heat exchanged, heated or cooled is provided with a heat medium pipe for circulating a heat medium such as high-temperature liquid or cooling water through a base member as a main body. It is formed by insertion.
  • FIG. 28 is a cross-sectional view showing a heat transfer plate formed by the method for manufacturing a heat transfer plate according to Document 1.
  • a heat transfer plate 100 according to Document 1 includes a base member 102 having a lid groove 106 having a rectangular cross-sectional view opening on the surface and a concave groove 108 opening on the bottom surface of the lid groove 106, and a heat medium inserted into the concave groove 108.
  • a working tube 116 and a lid plate 110 inserted into the lid groove 106 are provided.
  • the heat transfer plate 100 is formed by performing friction stir welding along the respective abutting portions J and J where the both side walls of the lid groove 106 and the both side surfaces of the lid plate 110 are abutted. Accordingly, plasticized regions W and W are formed in the abutting portions J and J of the heat transfer plate 100, respectively.
  • the heat transfer plate 100 formed by the method of manufacturing a heat transfer plate according to Document 1 performs frictional stirring only from the surface side of the base member 102, when the plasticized regions W and W are contracted by thermal contraction, the heat transfer plate There was a problem that distortion occurred.
  • Document 2 describes a method in which friction stir is performed after giving a predetermined downward warp to a metal member in advance in anticipation of the generated warp.
  • an object of the present invention is to provide a method of manufacturing a heat transfer plate that can easily manufacture a heat transfer plate having high flatness by eliminating distortion of a metal member.
  • a manufacturing method of a heat transfer plate according to the present invention that solves such a problem includes a lid groove closing step of arranging a lid plate in a lid groove formed around a concave groove that opens on the surface side of the base member; Friction from the back surface side of the base member using a correction rotating tool, a bonding step of relatively moving the bonding rotary tool along the abutting portion between the side wall of the lid groove and the side surface of the lid plate, and friction stir A volumetric volume of the plasticized region formed by the straightening process is smaller than a volume volume of the plasticized area formed by the joining process.
  • a heat medium tube insertion step of inserting a heat medium tube into a concave groove formed on the bottom surface of the cover groove opened on the surface side of the base member, and a cover plate is disposed in the cover groove.
  • a lid groove closing step, a joining step of relatively moving the joining rotary tool along the abutting portion between the side wall of the lid groove and the side surface of the lid plate, and friction stir, and the base using the rotation tool for correction A correction step of performing frictional stirring from the back side of the member, wherein the volume amount of the plasticized region formed by the correction step is smaller than the volume amount of the plasticization region formed by the joining step
  • the joining step it is preferable to flow a plastic fluidized material fluidized by frictional heat into a gap formed around the heat medium pipe.
  • a plastic fluidized material fluidized by frictional heat into a gap formed around the heat medium pipe.
  • the present invention also includes a lid plate inserting step of inserting a lid plate into the concave groove opened on the surface side of the base member, and a joining step of performing frictional stirring by relatively moving the welding rotary tool along the concave groove.
  • the present invention provides a heat medium tube insertion step of inserting a heat medium tube into a concave groove opened on the surface side of the base member, a lid plate insertion step of inserting a lid plate into the concave groove, and the concave portion.
  • the volume of the plasticized region formed is smaller than the volume of the plasticized region formed by the joining step.
  • the lid plate presses the upper part of the heat medium pipe by the pressing force of the joining rotary tool, and at least the upper part of the lid plate and the base member are plastically fluidized. preferable.
  • the planar shape of the locus of the straightening rotary tool is substantially point-symmetric with respect to the center of the base member.
  • the planar shape of the locus of the straightening rotary tool is substantially similar to the shape of the outer edge of the base member.
  • the planar shape of the trajectory of the straightening rotary tool is substantially the same as the planar shape of the trajectory of the joining rotary tool formed on the surface side of the base member.
  • trajectory of the said rotation tool for correction is substantially the same as the full length of the locus
  • a total length of the locus of the correction rotary tool is shorter than a total length of the locus of the bonding rotary tool formed on the surface side of the base member.
  • the outer diameter of the shoulder part of the said rotation tool for correction used at the said correction process is smaller than the outer diameter of the shoulder part of the said rotation tool for bonding used at the said joining process.
  • the length of the pin of the rotation tool for correction used in the correction step is shorter than the length of the pin of the rotation tool for bonding used in the bonding step.
  • the volume amount of the plasticized region in the straightening process can be set lower than the volume amount of the plasticized region in the joining step, the flatness of the manufactured heat transfer plate is improved. Can do.
  • the thickness of the base member is 1.5 times or more the outer diameter of the shoulder portion of the rotating tool for joining. Moreover, it is preferable that the thickness of the said base member is 3 times or more of the length of the pin of the said rotation tool for joining.
  • the base member since the base member has a sufficient thickness with respect to the size of each part of the rotating tool for joining, the flatness of the heat transfer plate can be further improved.
  • the correction step includes a corner friction stirring step of performing friction stirring with respect to the corner portion of the base member by the correction rotary tool.
  • a heater when a heater is provided inside the heat medium pipe, it is preferable to include an annealing step in which the heater is energized after the straightening step to anneal the heat transfer plate.
  • a chamfering step of chamfering the back surface side of the base member is included, and the chamfering depth is larger than the pin length of the straightening rotary tool. According to this manufacturing method, the back surface of the heat transfer plate can be formed smoothly.
  • the present invention provides a lid groove closing step of inserting a lid plate into a lid groove formed around a concave groove opened on the surface side of the base member, and a side wall of the lid groove and a side surface of the lid plate.
  • a straightening step of straightening by applying a bending moment that generates stress.
  • the present invention also includes a heat medium tube insertion step of inserting a heat medium tube into a concave groove formed on the bottom surface of the cover groove that opens to the surface side of the base member, and a cover plate is inserted into the cover groove.
  • a correction step of correcting a warp convex on the back side of the member by applying a bending moment that generates a tensile stress on the surface side of the base member.
  • a warp that protrudes on the back surface side of the base member formed by the joining step by applying a bending moment that generates a tensile stress on the surface side of the base member in the straightening step. This makes it possible to improve the flatness of the heat transfer plate and to manufacture the heat transfer plate relatively easily.
  • the joining step it is preferable to flow a plastic fluidized material fluidized by frictional heat into a gap formed around the heat medium pipe. According to this manufacturing method, since the gap formed in the heat transfer plate can be reduced, a heat transfer plate with high heat exchange efficiency can be manufactured.
  • the present invention also includes a lid plate insertion step of inserting a lid plate into a groove that opens on the surface side of the base member, a joining step of performing frictional stirring by relatively moving a welding rotary tool along the groove, A correction step of correcting a warp convex on the back surface side of the base member formed by the bonding step by applying a bending moment that generates a tensile stress on the front surface side of the base member. It is characterized by.
  • the present invention also provides a heat medium tube insertion step of inserting a heat medium tube into a groove that opens on the surface side of the base member, a lid plate insertion step of inserting a cover plate into the groove, and the groove
  • a joining step in which the rotating tool for joining is relatively moved along the stirrer, and a warp that protrudes on the back side of the base member formed by the joining step, and a tensile stress is applied to the surface side of the base member.
  • a warp that protrudes on the back surface side of the base member formed by the joining step by applying a bending moment that generates a tensile stress on the surface side of the base member in the straightening step. This makes it possible to improve the flatness of the heat transfer plate and to manufacture the heat transfer plate relatively easily.
  • the lid plate presses the upper portion of the heat medium pipe by the pressing force of the joining rotary tool, and at least the upper portion of the lid plate and the base member are frictionally stirred. .
  • the gap plate formed around the heat medium pipe can be reduced by performing frictional stirring while the cover plate presses the heat medium pipe, the heat exchange efficiency is high.
  • a heat transfer plate can be manufactured.
  • the correction step press correction for pressing the base member, hit correction for hitting the base member with a hitting tool such as a hammer, or roll correction for rotating the roll member on the base member is performed. Therefore, it is preferable to correct the warp.
  • the first auxiliary member that contacts the vicinity of the center of the back surface side of the base member is disposed, and the second auxiliary member and the third auxiliary member that contact the vicinity of the peripheral edge of the surface side of the base member.
  • the warp is preferably subjected to press correction, impact correction or roll correction in a state where the members are arranged on both sides with the first auxiliary member interposed therebetween.
  • the base member is forcibly bent to the side opposite to the warp by applying a pressing force so that the base member is convex from the back side to the convex side. Therefore, it is possible to correct the warpage. Moreover, the workability
  • each auxiliary member is made of a material having a hardness lower than that of the base member. According to this manufacturing method, when pressing by press correction, impact correction, or roll correction, the base member can be corrected without being damaged.
  • the annealing process which anneals the said heat exchanger plate after the said correction process.
  • a heat transfer plate with high flatness can be easily manufactured.
  • (A) is the side view which showed the rotation tool for joining
  • (b) is the side view which showed the rotation tool for correction
  • the manufacturing method of the heat exchanger plate which concerns on 1st embodiment it is the perspective view which showed before performing a joining process. It is the top view which showed the joining process in steps in the manufacturing method of the heat exchanger plate which concerns on 1st embodiment.
  • the manufacturing method of the heat exchanger plate which concerns on 1st embodiment it is the figure which showed after performing a joining process, Comprising: (a) is a perspective view, (b) is the line which connects the point c and the point f. It is sectional drawing.
  • (a) is the perspective view which showed the joining process
  • (b) is the II-II sectional view taken on the line of (a).
  • (a) is a perspective view
  • (b) is the line which connects the point c and the point f. It is sectional drawing.
  • (a) is the top view which showed the correction friction stirring process
  • (b) is the top view which showed the corner friction stirring process.
  • the heat transfer plate 1 includes a base member 2 having a rectangular plate thickness in plan view, a heat medium pipe 20 embedded in the base member 2, and a base. And a lid plate 10 disposed in a groove provided in the member 2.
  • the abutting portions J1 and J2 between the base member 2 and the cover plate 10 are joined by friction stirring.
  • the heat transfer plate 1 is used after being heated by a micro heater (not shown) inserted through the heat medium pipe 20.
  • the base member 2 has a role of transmitting heat of the heat medium flowing through the heat medium pipe 20 to the outside, or a role of transmitting external heat to the heat medium flowing through the heat medium pipe 20.
  • the base member 2 is a rectangular parallelepiped having a square shape in plan view, and in this embodiment, a base member having a thickness of 30 mm to 120 mm is used.
  • the base member 2 is made of a metal material that can be frictionally stirred, such as aluminum, aluminum alloy, copper, copper alloy, titanium, titanium alloy, magnesium, and magnesium alloy.
  • a cover groove 6 is formed in the surface Za of the base member 2, and a groove 8 narrower than the cover groove 6 is formed in the center of the bottom surface of the cover groove 6.
  • the lid groove 6 is a portion where the lid plate 10 is disposed, and is continuously formed in a substantially horseshoe shape in plan view with a certain width and depth.
  • the lid groove 6 has a rectangular shape in sectional view, and includes side walls 6 a and 6 b that rise vertically from the bottom surface 6 c of the lid groove 6.
  • the concave groove 8 is a portion into which the heat medium pipe 20 is inserted, and is formed over the entire length of the lid groove 6 at the central portion of the bottom surface 6 c of the lid groove 6.
  • the concave groove 8 is a U-shaped groove with an upper opening, and a semicircular bottom surface 7 is formed at the lower end.
  • the width of the opening of the groove 8 is formed with a width A substantially equal to the diameter of the bottom surface 7.
  • the lid groove 6 is formed to have a groove width E and the groove 8 has a depth C.
  • the heat medium pipe 20 is a cylindrical pipe having a hollow portion 18 having a circular cross section.
  • the heat medium pipe 20 is made of copper and has a horseshoe shape in plan view. Since the outer diameter B of the heat medium pipe 20 is formed to be substantially equal to the width A of the groove 8 and the depth C of the groove 8, if the heat medium pipe 20 is disposed in the groove 8, the heat medium The lower half of the pipe 20 and the bottom surface 7 of the concave groove 8 are in surface contact, and the upper end of the heat medium pipe 20 and the bottom surface 6c of the lid groove 6 are at the same height.
  • a microheater is inserted into the heat medium pipe 20, but for example, a heat medium such as cooling water, cooling gas, high-temperature liquid, or high-temperature gas is circulated to circulate the heat medium.
  • the heat may be transmitted to the base member 2 and the cover plate 10 or the heat of the base member 2 and the cover plate 10 to the heat medium.
  • the heat medium pipe 20 is circular in cross section, but may be square in cross section.
  • the heat medium pipe 20 uses copper in the present embodiment, but other materials may be used. Further, the heat medium pipe 20 is not necessarily provided, and the heat medium may flow directly into the concave groove 8.
  • the lid plate 10 has an upper surface 11, a lower surface 12, a side surface 13 a, and a side surface 13 b that form a rectangular section that is substantially the same as the section of the lid groove 6 of the base member 2. And it is formed in a substantially horseshoe shape in plan view.
  • the cover plate 10 is formed with the same composition as the base member 2.
  • the lid plate 10 is formed with a lid thickness H.
  • the width of the cover plate 10 is formed substantially equal to the groove width E of the cover groove 6, when the cover plate 10 is arranged in the cover groove 6, the side surfaces 13 a and 13 b of the cover plate 10 are formed on the cover groove 6.
  • the side walls 6a and 6b are in surface contact with each other or face each other with a fine gap.
  • the lower surface 12 of the cover plate 10 and the upper end of the heat medium pipe 20 are in contact with each other.
  • the groove 8 and the lower half of the heat medium pipe 20 are brought into surface contact, and the upper end of the heat medium pipe 20 and the lower surface 12 of the cover plate 10 are brought into contact. It is not limited to. Further, in the present embodiment, the lid groove 6, the concave groove 8, the lid plate 10, and the heat medium pipe 20 are formed so as to have a horseshoe shape in a plan view, but are not limited thereto. What is necessary is just to design suitably according to the use of.
  • the manufacturing method of the heat transfer plate 1 includes (1) groove forming step, (2) heat medium tube inserting step, (3) lid groove closing step, (4) joining step, and (5) straightening step. (6) An annealing process is included.
  • the cover groove 6 and the concave groove 8 are formed with a predetermined width and depth on the surface Za of the base member 2 as shown in FIG.
  • the groove forming step is performed by cutting using, for example, a known end mill.
  • the joining step friction stirring is performed using the joining rotary tool F along the abutting portions J1 and J2.
  • the joining process includes a first joining process in which the abutting portion J1 is frictionally stirred and a second joining process in which the abutting portion J2 is frictionally stirred.
  • the joining rotary tool F is made of a metal material harder than the base member 2 such as tool steel, and has a columnar shoulder portion F1 and a lower end surface F11 of the shoulder portion F1. And an agitating pin (probe) F2 provided in a protruding manner.
  • the size and shape of the joining rotary tool F may be set according to the material, thickness, etc. of the base member 2, but at least the straightening rotary tool G used in the straightening process described later (see FIG. 4B). Larger than).
  • the lower end face F11 of the shoulder portion F1 is a part that plays a role of preventing the metal fluid that has been plastically fluidized from being scattered to the surroundings, and is formed in a concave shape in the present embodiment.
  • the stirring pin F2 hangs down from the center of the lower end surface F11 of the shoulder portion F1, and is formed into a tapered truncated cone shape in this embodiment.
  • a stirring blade engraved in a spiral shape is formed on the peripheral surface of the stirring pin F2.
  • the maximum outer diameter of the stirring pin G2 of the maximum outer diameter (upper diameter) X 2 is straightening rotary tool G (upper end diameter) Y 2 more, and the minimum outer diameter (bottom diameter) X 3 is larger than the minimum outer diameter (bottom diameter) Y 3 of the stirring pin G2.
  • the length L A of the stirring pin F2 is formed to be larger than the length L B of the stirring pin G2 of the correction rotating tool G (see FIG. 4B).
  • the thickness t of the base member 2 shown in FIG. 4 (a) is preferably of a length L A of the stirring pin F2 is three times or more.
  • the thickness t of the base member 2 is preferably at least 1.5 times the outer diameter X 1 of the shoulder portion F1. According to this setting, since the thickness of the base member 2 can be sufficiently ensured with respect to the size of the joining rotary tool F, it is possible to reduce the warpage that occurs when performing frictional stirring.
  • the straightening rotary tool G shown in FIG. 4B is made of a metal material harder than the base member 2 such as tool steel, and protrudes from a shoulder portion G1 having a columnar shape and a lower end surface G11 of the shoulder portion G1. And a stirring pin (probe) G2.
  • the lower end surface G11 of the shoulder portion G1 is formed in a concave shape like the rotating tool F for joining.
  • the stirring pin G2 hangs down from the center of the lower end surface G11 of the shoulder portion G1, and in the present embodiment, the stirring pin G2 is formed in a tapered truncated cone shape.
  • a stirring blade engraved in a spiral shape is formed on the peripheral surface of the stirring pin G2.
  • the start position SM1 is set at an arbitrary position on the surface Za of the base member 2, and the agitation pin F2 of the welding rotary tool F is pushed (pressed) into the base member 2.
  • the start position S M1 is set in the vicinity of the outer edge of the base member 2 and in the vicinity of the abutting portion J1.
  • the start position S M1 , the start point s 1, the end position E M1, and the end point e 1 are not limited to the positions of the present embodiment, but are in the vicinity of the outer edge of the base member 2 and in the vicinity of the abutting portion J 1. Preferably there is.
  • a start position SM2 is set at an arbitrary point h on the surface Za of the base member 2, and the stirring pin F2 of the welding rotary tool F is pushed (pressed) into the base member 2.
  • the joining rotary tool F is relatively moved toward the start point s2 of the abutting portion J2.
  • the joining rotary tool F is moved along the abutting portion J2 as it is without being detached.
  • joining rotation tool F After joining rotation tool F reaches the end point e2 of the butting portion J2, a joining rotation tool F as it is moved to the point f side, disengaging the joining rotation tool F at the end position E M2 set in point f.
  • the start position S M2 and the end position E M2 are not limited to the positions in the present embodiment, but are preferably corners of the outer edge of the base member 2. Thus, if a loophole in the end position E M2 remaining can be removed by cutting the corner.
  • the surface plasticized region W1 (W1a, W1b) is formed along the abutting portion J1 and the abutting portion J2 by the first joining step and the second joining step.
  • the heat medium pipe 20 is sealed by the base member 2 and the cover plate 10.
  • the depth of the surface plasticizing region W1 is substantially equal to the height of the side walls 6a and 6b of the lid groove 6 (see FIG. 2B). Therefore, the entire abutting portion J1 and the abutting portion J2 in the depth direction can be frictionally stirred. Thereby, the airtightness of the heat exchanger plate 1 can be improved.
  • FIG. 7 is a perspective view of the heat transfer plate 1 after the joining process of the present embodiment.
  • a surface plasticized region W1 is formed by a joining process. Since the surface plasticization region W1 shrinks due to thermal contraction, a compressive stress acts from the respective corners of the base member 2 toward the center on the surface Za side of the heat transfer plate 1. Accordingly, the heat transfer plate 1 may be distorted (bent) so that the surface Za side is concave.
  • the points a to j shown on the surface Za of the heat transfer plate 1 the influence of the warp tends to be noticeable at the points a, c, f, and h at the four corners of the heat transfer plate 1.
  • the point j shows the center point of the heat exchanger plate 1.
  • the straightening step friction stir is performed from the back surface Zb of the base member 2 using the straightening rotary tool G.
  • the correction process is a process performed in order to eliminate the warp (distortion) generated in the joining process.
  • the straightening process includes a tab material arranging process for arranging the tab material, and a straightening friction stirring process for performing friction stirring on the back surface Zb of the base member 2.
  • a tab material 31 for setting a start position and an end position of a correction friction stirring process described later is arranged.
  • the tab material 31 has a rectangular parallelepiped shape and has the same composition as the base member 2.
  • the tab material 31 is in contact with the side surface Zc so as to cover part of the side surface Zc of the base member 2.
  • the tab material 31 is temporarily joined by welding both side surfaces of the tab material 31 and the side surface Zc of the base member 2.
  • the surface of the tab material 31 is preferably formed flush with the back surface Zb of the base member 2.
  • the correction friction agitation step friction agitation is performed on the back surface Zb of the base member 2 using the rotation tool G for correction as shown in FIGS.
  • the friction stirring is performed with a pressing amount substantially equal to that in the joining process.
  • the route of the straightening friction stirring step is set so as to surround the central point j ′ and the back plasticization region W2 formed by the straightening friction stirring step is radial with respect to the central point j ′.
  • the points a ′, b ′,... are points corresponding to the back surface Zb side of the point a, the point b,.
  • a start position SM2 is set on the surface of the tab material 31, and the stirring pin G2 of the straightening rotary tool G is pushed into the tab material 31 (pressing) To do).
  • the correction rotary tool G is relatively moved toward the base member 2. And it becomes convex in plan view near the point f ′, the point a ′, the point c ′, and the point h ′ on the back surface Zb of the base member 2, and near the point g ′, the point d ′, the point b ′, and the point e ′.
  • the rotational tool G for correction is relatively moved so as to have a concave shape in plan view, and friction stirring is performed. That is, as shown in FIG. 8B, the back surface plasticized region W2 is formed so as to be symmetric with respect to the center line (dashed line) of the base member 2.
  • the start position S M2 and the end position E M2 are provided on the tab material 31, and friction stirring is performed in the manner of one stroke. Thereby, friction stirring can be performed efficiently.
  • the tab material 31 is cut out.
  • the trajectory of the correction rotary tool G that is, the shape of the back surface plasticized region W2 is formed so as to surround the center point j ′ and to be substantially radial with respect to the center point j ′.
  • the present invention is not limited to this. Variations of the locus of the correction rotating tool G will be described later.
  • the length of the trajectory of the correction rotating tool G (the length of the back surface plasticizing region W2) is greater than the length of the trajectory of the rotating tool F for bonding (the length of the surface plasticizing region W1). Is also formed to be shorter. That is, the processing degree of the correction rotary tool G in the correction process is set to be smaller than the processing degree of the bonding rotary tool F in the bonding process. Thereby, the flatness of the heat exchanger plate 1 can be improved. The reason for this will be described in Examples.
  • the workability indicates the volume amount of the plasticized region formed by friction stirring.
  • the tab material is disposed in the correction process, but the tab material may not be provided depending on the friction stirring route in the correction friction stirring process.
  • the internal stress of the heat transfer plate 1 is removed by annealing the heat transfer plate 1.
  • the heat medium pipe 20 is annealed, for example, by energizing a micro heater. Thereby, the internal stress of the heat exchanger plate 1 can be removed, and the deformation
  • the surface Za is also obtained by performing frictional stirring on the back surface Zb of the base member 2.
  • the flatness of the heat transfer plate 1 can be easily improved. That is, the back surface plasticized region W2 formed on the back surface Zb of the base member 2 is shrunk due to thermal contraction, and therefore, on the back surface Zb side of the heat transfer plate 1, compression is performed from each corner side of the base member 2 toward the center side. Stress acts. Thereby, the curvature formed by this joining process is eliminated, and the flatness of the heat exchanger plate 1 can be improved.
  • the width of the lid groove 6 and the lid plate 10 is set to be smaller than that of the first embodiment, and the abutting portion J1 and the abutting portion J2 are located in the vicinity of the heat medium pipe 20.
  • the plastic fluidizing material can be caused to flow into the gaps Q and Q formed around the heat medium pipe 20 by pushing the joining rotary tool F at a predetermined depth and performing frictional stirring.
  • FIG. 9B since the periphery of the heat medium pipe 20 is sealed with the plasticized metal, the heat transfer plate 1 ′ having high heat transfer can be formed.
  • FIG. 10 is a cross-sectional view showing the third embodiment.
  • the heat transfer plate 1 '' according to the third embodiment is the same as the heat transfer plate 1 according to the first embodiment, except that the heat medium pipe 20 according to the first embodiment is not provided.
  • the heat medium may be directly flowed into the concave groove 8 without providing the heat medium pipe. Since the manufacturing method of the heat transfer plate 1 ′′ is the same as that of the first embodiment except that the heat medium pipe is not inserted, the description thereof is omitted.
  • the heat transfer plate 41 manufactured according to the fourth embodiment includes a base member 2 having a square thickness in plan view, and heat inserted into a groove recessed in the base member 2. It mainly includes a medium tube 21 and a lid plate 42 inserted into a groove provided in the base member 2. The upper surface of the cover plate 42 is joined by a single friction stir.
  • the surface Za of the base member 2 is formed with a concave groove 43 that is continuously formed from one side surface Zc of the base member 2 to the other side surface Zd that faces the base member 2.
  • the concave groove 43 is a portion into which the heat medium pipe 21 and the lid plate 42 are inserted.
  • the concave groove 43 is formed so as to have a U-shape in a sectional view and a meandering shape in a plan view.
  • the width A ′ between the side walls 43 a and 43 b of the concave groove 43 is formed to be approximately equal to the outer diameter of the heat medium pipe 20.
  • the width A of the groove 43 ' is formed smaller than the outer diameter X 1 of the shoulder portion F1 of the joining rotation tool F.
  • the depth of the concave groove 43 is formed with a depth C ′.
  • the heat medium pipe 21 is a pipe inserted into the concave groove 43 and is formed so as to penetrate from one side surface Zc of the base member 2 to the other side surface Zd.
  • the heat medium pipe 21 has a meandering shape in plan view, and has a shape substantially equivalent to the shape of the groove 43 in plan view.
  • the lid plate 42 is a member that has a rectangular cross-sectional view and a serpentine shape in plan view, and is a member that is inserted into the concave groove 43.
  • the lid plate 42 includes side surfaces 42a and 42b, an upper surface 42c, and a lower surface 42d.
  • the upper surface 42c and the surface Za of the base member 2 are flush with each other, and the side surfaces 42a and 42b of the cover plate 42 are in surface contact with the side walls 43a and 43b of the groove 43, respectively. Or face each other with a fine gap.
  • the manufacturing method of the heat transfer plate according to the fourth embodiment includes (1) groove forming step, (2) heat medium tube inserting step, (3) lid plate inserting step, (4) joining step, and (5) straightening step. (6) A chamfering step is included.
  • the concave groove 43 is formed on the surface Za of the base member 2 with a predetermined width and depth.
  • the groove forming step is performed using, for example, a known end mill.
  • the lid plate 42 is inserted into the concave groove 43 to close the concave groove 43.
  • a portion which is abutted by one side wall 43 a of the concave groove 43 and one side surface 42 a of the lid plate 42 is defined as an abutting portion J ⁇ b> 3.
  • a portion that is abutted between the other side wall 43b and the other side surface 42b of the lid plate 42 is referred to as an abutting portion J4.
  • the joining step friction stirring is performed using the joining rotary tool F along the lid plate 42 (concave groove 43).
  • the joining process includes a tab material arranging process for arranging the tab material, and a main joining process for performing frictional stirring.
  • a pair of tab materials 33 and 34 are arranged on one side surface Zc and the other side surface Zd of the base member 2, respectively. Both side surfaces of the tab members 33 and 34 and the base member 2 are temporarily joined by welding.
  • the present embodiment it is possible to friction stir the abutting portions J3 and J4 only by setting one route, so that it is possible to greatly reduce the work labor compared to the first embodiment. it can. Further, when the friction stir is performed, the welding rotary tool F pushes the cover plate 42, so that the heat medium pipe 21 is also pressed and deformed. Thereby, since the space
  • FIG. 15 are views showing the heat transfer plate 41 after the main joining process of the present embodiment.
  • a surface plasticized region W3 is formed by a joining process. Since the surface plasticization region W3 shrinks due to thermal contraction, the heat transfer plate 41 may be warped and distorted so as to be concave on the surface Za side.
  • the points a to j shown on the surface Za of the heat transfer plate 41 the points a, c, f, and h related to the four corners of the heat transfer plate 41 tend to be noticeably warped.
  • the point j indicates the center point of the heat transfer plate 41.
  • the straightening process is a process performed to eliminate the warp generated in the joining process.
  • the straightening process includes a straightening friction stirring process in which frictional stirring is performed in a radial manner and a corner friction stirring process in which frictional stirring is performed on the corner of the base member 2.
  • friction stirring is performed so that a plasticized region is formed radially through the central point j ′. That is, on the straight line connecting point a ′ and point h ′, on the straight line connecting point d ′ and point e ′, on the straight line connecting point f ′ and point c ′, and on point g ′ and point b ′.
  • the friction stirring start position (S M5 , S M6 , S M7 , S M8 ) and the end position (E M5 , E M6 , E M7 , E M8 ) are set on the connecting line, and the center point from each start position.
  • the friction stir route is set so that the distance to j ′ is equal to the distance from the center point j ′ to each end position.
  • the straightening rotary tool G is pushed into each start position, and the straightening rotary tool G is moved along each route (straight line).
  • the friction stirring is performed with a pressing amount substantially equal to that in the joining process. .
  • the back surface plasticized regions W41 to W44 formed by the correction friction stirring step are formed to radially spread in eight directions with respect to the central point j ′.
  • the corner friction stirring step is formed so that the trajectory of the correction rotary tool G is perpendicular to the diagonal line at each corner, but is not limited thereto.
  • a route for friction stirring may be set as appropriate in consideration of the degree of warping of the corner.
  • the back surface plasticization region W45 and the back surface plasticization region W47, and the back surface plasticization region 46 and the back surface plasticization region W48 formed in the corner friction stirring step are formed so as to be symmetric with respect to the center point j ′. It is preferred that Thereby, the curvature of the surface Za side and the back surface Zb side of the heat-transfer plate 41 can be eliminated in a balanced manner, and the flatness of the heat-transfer plate 41 can be improved.
  • the back surface Zb of the heat transfer plate 41 is chamfered using a known end mill or the like. As shown in FIG. 16 (b), on the back surface Zb of the heat transfer plate 41, a hole (not shown) of the correction rotary tool G or a groove (not shown) generated by pushing each rotary tool, Burr etc. occur. Therefore, the back surface Zb of the heat transfer plate 41 can be formed smoothly by performing the chamfering process.
  • the thickness Ma of the chamfering process is set larger than the thickness Wa of the back surface plasticizing region W42.
  • the back surface plasticized regions W41 to W44 formed on the back surface Zb of the base member 2 are removed, so that the properties of the base member 2 can be made uniform. Further, since the back surface plasticized region W42 or the like is not exposed on the back surface Zb, it is suitable for design and the like.
  • the thickness of the chamfering process is set to be larger than the thickness of the back surface plasticizing region, but the present invention is not limited to this.
  • the thickness of the chamfering process may be set larger than the length of the stirring pin G2 of the correction rotary tool G, for example.
  • the correction process may be performed using the correction rotation tool not including the stirring pin G2. According to such a rotating tool, since the depth of the back surface plasticization region can be reduced, the thickness to be chamfered can be reduced. Thereby, since there are few chamfering parts, the loss of the base member 2 can be made small and cost can be reduced.
  • the heat transfer plate 41 is distorted due to the heat shrinkage due to the joining process, it is generated on the surface Za by performing frictional stirring on the back surface Zb of the base member 2. Warpage can be eliminated and the flatness of the heat transfer plate 41 can be easily increased. That is, the back surface plasticized regions W41 to W44 formed on the back surface Zb of the base member 2 are shrunk due to thermal contraction, and therefore, on the back surface Zb side of the heat transfer plate 41, from each corner side of the base member 2 toward the center side. Compressive stress acts. Thereby, the curvature formed by this joining process is eliminated, and the flatness of the heat exchanger plate 41 can be improved.
  • the abutting portions J3 and J4 between the cover plate 42 and the concave groove 43 can be frictionally stirred by one movement of the joining rotary tool F. Therefore, compared to the first embodiment. Therefore, labor can be saved greatly.
  • the corner friction stirring step is performed on the back surface Zb of the base member 2, the flatness of the heat transfer plate 41 can be improved by mainly correcting the corner portion having a large warp. .
  • FIG. 18 is a cross-sectional view of a heat transfer plate according to the fifth embodiment.
  • the heat transfer plate 51 according to the fifth embodiment is the same as the heat transfer plate 41 according to the fourth embodiment except that the heat transfer plate 51 is not provided. As shown in the heat transfer plate 51, the heat medium may flow directly into the concave groove 43. Since the manufacturing method of the heat transfer plate 51 is the same as that of the fourth embodiment except that the heat medium pipe 21 is not inserted, the description thereof is omitted.
  • FIG. 19 is a plan view showing the surface side of the heat transfer plate according to the sixth embodiment.
  • FIG. 20 is a plan view showing the back side of the heat transfer plate according to the sixth embodiment.
  • the friction stirrer according to the correction process is performed so that the plasticized regions formed on the front surface Za side and the back surface Zb side of the heat transfer plate have substantially the same shape.
  • a route may be set.
  • the heat medium pipe 53 and the cover plate 54 are inserted into the concave groove formed on the surface of the base member 2 to form a single plasticized region W60. Are joined together.
  • the description overlapping with the fourth embodiment is omitted.
  • a heat transfer plate 61 shown in FIG. 19 includes a base member 2 having an opening 52 in the center, and a heat medium pipe 53 embedded in a groove (not shown) cut out in the surface Za of the base member 2.
  • the lid plate 54 mainly closes the groove.
  • the heat medium pipe 53 is embedded in the base member 2 so as to exhibit a cross shape with a hollow in plan view. One end and the other end of the heat medium pipe 53 are exposed to the opening 52 of the base member 2. Heat is supplied from one end of the heat medium pipe 53 that appears in the opening 52, and the heat is discharged from the other end to be transmitted to the base member 2.
  • the abutting portion between the lid plate 54 and the base member 2 is joined by friction stirring by a joining rotary tool F through a process substantially equivalent to the joining process according to the fourth embodiment.
  • the surface plasticization region W60 is formed on the surface Za of the base member 2 so as to exhibit a substantially hollow shape in plan view.
  • the back surface Zb of the heat transfer plate 61 is formed with a back surface plasticized region W61 so as to have a hollow shape in a plan view, like the front surface Za.
  • the friction stirring start position S M and the end position E M in the correction process are set at an arbitrary point on the base member 2.
  • frictional stirring is performed with a pressing amount substantially equal to that in the joining process.
  • the back surface plasticizing region W61 is friction-stirred in the manner of one-stroke writing using the correction rotating tool G.
  • the surface plasticization region W60 and the back surface plasticization region W61 respectively formed on the front surface Za and the back surface Zb of the heat transfer plate 61 are corrected so as to exhibit substantially the same shape. You may set the route of the friction stirring which concerns on a process. According to the joining step and the straightening step, the shapes of the plasticized regions formed on the front surface Za side and the back surface Zb side of the heat transfer plate 61 are substantially the same, so that the warpage of the heat transfer plate 61 is eliminated in a balanced manner. Flatness can be improved.
  • the length of the locus of friction agitation performed on the surface Za side of the base member 2 is substantially equal to the length of the locus of friction agitation performed on the back surface Zb side. Since G is formed to be smaller than the joining rotary tool F, the degree of processing in the correction process is smaller than the degree of processing in the joining process.
  • correction process is not limited to the friction stir route of the first to sixth embodiments described above, and various routes can be set. Below, the other form of the route of friction stirring which concerns on a correction process is demonstrated.
  • FIG. 21 is a plan view of the back side of the heat transfer plate, where (a) is a first modification, (b) is a second modification, (c) is a third modification, and (d) is a fourth modification. For example, (e) shows a fifth modification, and (f) shows a sixth modification.
  • the trajectories (back surface plasticization region W2) of the correction rotary tool of the first modification and the second modification shown in FIGS. 21A and 21B all surround the center point j ′ of the base member 2. It is characterized by being formed.
  • the first modification is formed so as to be similar to the outer shape of the base member 2. Moreover, you may form in a grid
  • Each of the trajectories (back surface plasticizing region W2) of the correction rotary tool of the third modification and the fourth modification shown in FIGS. 21C and 21D passes through the center point j ′ of the base member 2. It is characterized by being formed radially.
  • the third modification shown in FIG. 20C includes a plurality of loops having a center point j as a start point and an end point, and is formed so as to be point-symmetric with respect to the center point j ′. Moreover, since the 3rd modification can be formed in the way of one-stroke writing, work efficiency can be improved.
  • the fourth modification shown in FIG. 20D is formed so as to pass through the center point j ′ and to be parallel to the diagonal line of the base member 2.
  • the trajectories (back surface plasticization region W2) of the correction rotary tools of the fifth and sixth modified examples shown in FIGS. 20 (e) and (f) are divided into four regions by straight lines passing through the central point j ′.
  • the four loci of the same shape are formed independently, and the loci that are diagonally opposed across the central point j ′ are point-symmetric.
  • the four trajectories may have any shape as long as they have the same shape.
  • the correction step may be performed by appropriately setting the route of friction stirring according to the locus of friction stirring in the joining step performed on the base member 2.
  • the base member 2 has been described as an example of a square in plan view, but may have other shapes.
  • the correction of the warp was performed by performing frictional stirring on the back surface Zb of the base member 2 using the correction rotary tool G, but is not limited thereto. It is not a thing.
  • a bending moment that generates a tensile stress from the back surface Zb of the heat transfer plate 1 (base member 2) to the front surface Za side of the base member 2 is applied, and the above-described joining process.
  • the warp of the heat transfer plate 1 formed by the above is corrected.
  • any one or more methods may be selected from the following three methods: press correction, impact correction, and roll correction.
  • FIG. 22 is a perspective view illustrating a preparatory stage for press correction according to the seventh embodiment.
  • FIG. 23 is a side view showing press correction according to the seventh embodiment, where (a) shows before pressing and (b) shows during pressing.
  • FIG. 24 is a plan view showing a pressing position for press correction according to the seventh embodiment.
  • FIG. 25 is a view showing roll correction according to the seventh embodiment, where (a) is a perspective view, (b) is a side view showing before pressing, and (c) is a side view showing during pressing. It is.
  • the correction process which concerns on 7th embodiment it demonstrates using the heat exchanger plate 1 which concerns on 1st embodiment.
  • a plate-like first auxiliary member T1 is disposed at the center point j ′ (see FIG. 7B) on the back surface Zb. Furthermore, plate-like second auxiliary members T2, T2 and third auxiliary members T3, T3 are arranged at the four corners on the surface Za side of the heat transfer plate 1. That is, the second auxiliary member T2 and the third auxiliary member T3 are disposed on both sides with the first auxiliary member T1 interposed therebetween.
  • the first auxiliary member T1 to the third auxiliary member T3 are members that serve as a contact material or a base when performing press correction, and are members that prevent the heat transfer plate 1 from being damaged.
  • the first auxiliary member T1 to the third auxiliary member T3 may be any material that is softer than the heat transfer plate 1, and for example, aluminum alloy, hard rubber, plastic, and wood can be used.
  • the first auxiliary member T1 to the third auxiliary member T3 are set with a thickness sufficient to correct the warp by bending to the opposite side of the warp according to the mechanical characteristics of the heat transfer plate 1 and the curvature of the warp. do it.
  • each auxiliary member When each auxiliary member is arranged, it is pressed from the rear surface Zb of the heat transfer plate 1 using a known press device P as shown in FIGS.
  • the punch Pa of the pressing device P is pressed against the first auxiliary member T1 and pressed with a predetermined pressing force.
  • the first auxiliary member T1 pushes the heat transfer plate 1 downward
  • the second auxiliary member Since T2 and the third auxiliary member T3 push both end sides of the heat transfer plate 1 upward, a bending moment acts on the heat transfer plate 1. Since this bending moment generates a tensile stress on the surface Za side of the heat transfer plate 1, the heat transfer plate 1 is forcibly bent downwardly.
  • the pressing force of the press device may be set as appropriate depending on the thickness and material of the heat transfer plate 1, but as shown in FIG. 23 (b), the surface Za side of the heat transfer plate 1 is convex downward, It is preferable to apply a bending moment that causes tensile stress to Za.
  • the first auxiliary member T1 is disposed at positions H2 to H5 including a point b ′, a point d ′, a point e ′, and a point g ′, which are intermediate points between the sides on the back surface Zb of the heat transfer plate 1, and press Pressing is performed by the device P.
  • the heat exchanger plate 1 can be corrected with good balance, and flatness can be further improved.
  • the hit correction means correcting a warp generated in the heat transfer plate using a hitting tool such as a hammer.
  • the impact correction is substantially the same as the press correction except that the heat transfer plate 1 is impacted with an impact tool such as a hammer instead of the press device P.
  • the heat transfer plate 1 is moved from the rear surface Zb of the heat transfer plate 1 with an impact tool such as a plastic hammer as shown in FIGS. Hit it.
  • an impact tool such as a plastic hammer as shown in FIGS. Hit it.
  • a tensile stress is generated on the surface Za side of the heat transfer plate 1, so that the heat transfer plate 1 is forcibly bent downward (see FIG. 23B).
  • the curvature of the heat exchanger plate 1 can be corrected and made flat.
  • the heat transfer plate 1 can be corrected in a balanced manner by striking the positions H2 to H5 (see FIG. 24) of the back surface Zb of the heat transfer plate 1 as necessary.
  • Impact correction is easier than press correction because it eliminates the need to prepare a press device and the like. Further, the impact correction is effective when the heat transfer plate 1 is small or thin because the work is easy. In addition, it is preferable to remove the burr generated by the hit after the hit correction.
  • the hitting tool is not particularly limited as long as it can hit the heat transfer plate 1, but for example, a plastic hammer is preferable.
  • the first auxiliary member T1 having a long plate shape is arranged so as to be parallel to the vertical direction including the center point j ′ (see FIG. 7B) of the back surface Zb. Further, the long plate-shaped second auxiliary member T2 and the third auxiliary member T3 are arranged so as to be parallel to the vertical direction at the edge portion on the surface Za side of the heat transfer plate 1. That is, the second auxiliary member T2 and the third auxiliary member T3 are disposed on both sides with the first auxiliary member T1 interposed therebetween.
  • Roll R1 is arrange
  • Roll R2 is arrange
  • the first auxiliary member T1 to the third auxiliary member T3 are members for performing roll correction and are members for preventing the heat transfer plate 1 from being damaged.
  • the first auxiliary member T1 to the third auxiliary member T3 may be any material that is softer than the heat transfer plate 1, and for example, aluminum alloy, hard rubber, plastic, and wood can be used.
  • the first auxiliary member T1 lowers the heat transfer plate 1 as shown in FIGS. 25 (b) and (c). Since the second auxiliary member T2 and the third auxiliary member T3 push the both end sides of the heat transfer plate 1 upward, a bending moment acts on the heat transfer plate 1. Since this bending moment generates a tensile stress on the surface Za side of the heat transfer plate 1, the heat transfer plate 1 is forcibly bent downwardly.
  • the first auxiliary member T1 to the third auxiliary member T3 are set with a thickness sufficient to correct the warp by bending to the opposite side of the warp according to the mechanical characteristics of the heat transfer plate 1 and the curvature of the warp. do it.
  • the rolls R1 and R2 may be rotated in the horizontal direction. That is, the first auxiliary member T1 to the third auxiliary member T3 are arranged so as to be parallel to the lateral direction, and the rolls R1, R2 are arranged so as to be orthogonal to the first auxiliary member T1 to the third auxiliary member T3. To do. And roll R1, R2 is reciprocated to a horizontal direction. Thereby, the heat exchanger plate 1 can be corrected with sufficient balance.
  • tensile stress is generated on the back surface Za of the base member 2 even if the heat transfer plate 1 is distorted by heat shrinkage due to the joining process on the surface Za of the heat transfer plate 1.
  • the flatness of the heat transfer plate can be easily increased.
  • friction stirring is performed so as to draw three circles on the front surface Za and the rear surface Zb of the base member 2 having a square shape in plan view.
  • the deformation amount of the warp generated on the side and the deformation amount of the warp generated on the back surface Zb side were measured. That is, the flatness of the base member 2 is higher as the value of the amount of warpage deformation generated on the front surface Za side is closer to the value of the amount of warpage deformation generated on the rear surface Zb side.
  • the base member 2 was a rectangular parallelepiped having a plan view of 500 mm ⁇ 500 mm, and the measurement was performed using two types having a thickness of 30 mm and 60 mm.
  • the material of the base member 2 is JIS standard 5052 aluminum alloy.
  • Rotating tools having the same size were used for both the front surface Za side and the back surface Zb side.
  • the size of the rotating tool is such that the outer diameter of the shoulder portion is 20 mm, the length of the stirring pin is 10 mm, the size of the base of the stirring pin (maximum diameter) is 9 mm, and the size of the tip of the stirring pin (minimum diameter) is 6 mm. A thing was used.
  • the rotational speed of the rotary tool was set to 600 rpm, and the feed rate was set to 300 mm / min. Further, the pressing amount of the rotary tool was set constant on both the front surface Za side and the back surface Zb side. As shown in FIG.
  • the plasticized regions formed on the surface Za side are referred to as a plasticized region W21 to a plasticized region W23 from the small circle to the great circle, respectively. Further, the plasticized regions formed on the back surface Zb side are designated as plasticized regions W31 to W33 from the small circle to the great circle.
  • the respective measurement results in this example are shown in Tables 1 to 4 below.
  • Table 1 is a table showing measured values when the thickness of the base member is 30 mm and frictional stirring is performed from the surface side.
  • “Before FSW” indicates the height difference between the central point j (reference j) and each point (point a to point h) before the friction stir.
  • “After FSW” indicates a difference in height between the reference j and each point after performing frictional stirring of three circles with the reference j being zero.
  • the “surface side deformation amount” indicates a value (after FSW ⁇ before FSW) at each point.
  • the bottom column of “Surface-side deformation amount” indicates an average value of the points a to h. Negative values of “before FSW” and “after FSW” mean that they are located below the reference j.
  • Table 2 is a table showing the measured values when the plate thickness of the base member is 30 mm and frictional stirring is performed from the back side (correcting step).
  • “Before FSW” indicates the level difference between the central point j ′ (reference j ′) and each point (a ′ to h ′) before the friction stir.
  • “FSW1” indicates a difference in height between the reference j ′ and each point after the frictional stirring of the small circle (radius r1) with the reference j ′ set to zero.
  • “Back side deformation amount 1” indicates a value (before FSW1 ⁇ FSW) at each point.
  • the bottom column of “back side deformation amount 1” indicates an average value of points a to h.
  • “FSW2” indicates a difference in height between the reference j ′ and each point after performing frictional stirring of the middle circle (radius r2) in addition to the small circle (radius r1) with the reference j ′ set to zero.
  • “Back side deformation 2” indicates the value of (before FSW2 ⁇ FSW) at each point.
  • the bottom column of “back side deformation 2” shows the average value of points a to h.
  • “FSW3” is based on the reference j ′ after the frictional stirring of the great circle (radius r3) in addition to the small circle (radius r1) and the middle circle (radius r2) with the reference j ′ set to zero. The height difference from the point is shown.
  • “Back side deformation amount 3” indicates a value (before FSW3 ⁇ FSW) at each point.
  • the bottom column of “back side deformation 3” shows the average value of points a to h.
  • Table 3 is a table showing measured values when the thickness of the base member is 60 mm and frictional stirring is performed from the surface side. Each item in Table 3 has substantially the same meaning as each item in Table 1.
  • Table 4 is a table showing measured values when the thickness of the base member is 60 mm and frictional stirring is performed from the back side. Each item in Table 4 has substantially the same meaning as each item in Table 2.

Abstract

L'invention porte sur un procédé de fabrication d'une plaque de transfert de chaleur permettant de fabriquer aisément une plaque de transfert de chaleur présentant une planéité élevée par friction-malaxage. Le procédé comporte une étape de fermeture de rainure de couvercle, consistant à disposer des plaques de couvercle dans des rainures de couvercle respectives formées autour de rainures en creux respectives débouchant dans la surface avant d'un élément de base (2), une étape de liaison consistant à effectuer une friction-malaxage par déplacement d'un outil rotatif pour une liaison le long des parties en butée entre les parois latérales des rainures de couvercle et les surfaces latérales des plaques de couvercle, et une étape de correction consistant à effectuer une friction-malaxage par déplacement d'un outil rotatif (G) pour une correction du côté surface arrière (Zb) de l'élément de base (2). Le procédé est caractérisé en ce que la quantité de volume de la zone plastifiée formée par l'étape de correction est plus petite que la quantité de volume de la zone plastifiée formée par l'étape de liaison.
PCT/JP2009/050132 2008-02-21 2009-01-08 Procédé de fabrication de plaque de transfert de chaleur WO2009104426A1 (fr)

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CN200980106125.XA CN101952079B (zh) 2008-02-21 2009-01-08 传热板的制造方法
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JP2008039652A JP5071144B2 (ja) 2008-02-21 2008-02-21 伝熱板の製造方法
JP2008244565A JP5262508B2 (ja) 2008-09-24 2008-09-24 伝熱板の製造方法
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US20150273637A1 (en) * 2012-10-10 2015-10-01 Nippon Light Metal Company, Ltd. Method for manufacturing heat exchanger plate and method for friction stir welding
WO2020044663A1 (fr) * 2018-08-27 2020-03-05 日本軽金属株式会社 Procédé de fabrication d'une plaque de transfert de chaleur
US11654507B2 (en) 2017-12-18 2023-05-23 Nippon Light Metal Company, Ltd. Method for manufacturing liquid-cooling jacket
US11654508B2 (en) 2017-09-27 2023-05-23 Nippon Light Metal Company, Ltd. Method for producing liquid-cooled jacket
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US11712748B2 (en) 2017-09-27 2023-08-01 Nippon Light Metal Company, Ltd. Method for producing liquid-cooled jacket
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WO2013027532A1 (fr) 2011-08-19 2013-02-28 日本軽金属株式会社 Procédé de soudage par friction-malaxage
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JP6052232B2 (ja) 2014-01-27 2016-12-27 日本軽金属株式会社 接合方法
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WO2016063754A1 (fr) * 2014-10-21 2016-04-28 日立オートモティブシステムズ株式会社 Procédé pour fabriquer un piston pour moteur à combustion interne et dispositif d'étanchéité de trous de frottement pour piston pour moteur à combustion interne
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KR101194097B1 (ko) 2012-10-24
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CN103551722A (zh) 2014-02-05
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TW200936283A (en) 2009-09-01
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