WO2024043286A1 - Structure member and method for manufacturing structure member - Google Patents

Structure member and method for manufacturing structure member Download PDF

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Publication number
WO2024043286A1
WO2024043286A1 PCT/JP2023/030390 JP2023030390W WO2024043286A1 WO 2024043286 A1 WO2024043286 A1 WO 2024043286A1 JP 2023030390 W JP2023030390 W JP 2023030390W WO 2024043286 A1 WO2024043286 A1 WO 2024043286A1
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extruded
pressing
structural member
friction stir
base
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PCT/JP2023/030390
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French (fr)
Japanese (ja)
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美速 今村
幸昌 宮田
成一 橋本
克彦 縄田
拓巳 中原
智恵子 今井
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株式会社神戸製鋼所
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Publication of WO2024043286A1 publication Critical patent/WO2024043286A1/en

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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

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  • the present invention relates to a structural member and a method for manufacturing the structural member.
  • a battery system mounted on such a vehicle or device generally has a configuration in which a large number of batteries (batteries, battery cells) are housed in a battery tray.
  • Patent Document 1 discloses, as a battery pack structure that accommodates a plurality of battery packs, an outer frame body in which a pair of front frames and a rear frame are connected by left and right side frames, respectively, and a bottom side of the outer frame body.
  • a cooling member is disclosed in which the cooling member has an upper cooling layer and a lower cooling layer stacked on top of each other to form a cooling flow path inside.
  • Patent Document 2 discloses a battery storage structure in which a battery storage part is formed inside by a bottom part and a side wall part standing up from the bottom part, and the bottom part has a heat pipe structure.
  • Patent Document 3 discloses a battery case structure for a vehicle in which a first side member and a second side member arranged to face each other form a housing portion for a battery module.
  • first side member and the second side member has a skeleton hollow part located on the side side of the battery module and an under hollow part located on the lower side of the battery module.
  • a clearance hollow part is provided between the housing bottom part of the battery module housing part and the under hollow part.
  • the skeleton hollow part, the clearance hollow part, and the under hollow part are integrally formed.
  • Patent Document 4 discloses a technique for joining members together by friction stir welding the joint portion from the front and back.
  • Japanese Patent Application Publication No. 2021-140863 Japanese Patent Application Publication No. 2020-19291 Japanese Patent Application Publication No. 2021-70386 Japanese Patent No. 4838385
  • an object of the present invention is to provide a structural member manufactured with high precision while ensuring sufficient rigidity, and a method for manufacturing the structural member.
  • the present invention consists of the following configuration.
  • the joint portion of the plurality of extruded panels is a first stirring joint formed on the surface side; a second stirring joint formed on the back side; has The total thickness of the joint portion is 15 mm or less
  • the edge on the joint part side of the extruded panel having the hollow part has a dimension equal to or larger than the sum of half the width of the shoulder stirring surfaces formed on the front and back sides of the joint part and the thickness of the ribs between the hollow parts.
  • FIG. 1 is a perspective view of a structural member according to this configuration example.
  • FIG. 2 is a side view of the structural member according to this configuration example.
  • FIG. 3 is a side view of a portion of the structural member.
  • FIG. 4 is a perspective view of the joint portion of the structural member.
  • FIG. 5 is a side view of the joint portion of the structural member.
  • FIG. 6A is a perspective view of the extrusion panel placed on the base, illustrating the first placement step and the first pressing step.
  • FIG. 6B is a side view of the extrusion panel placed on the base, illustrating the first placement step and the first pressing step.
  • FIG. 7A is a perspective view of the extrusion panel placed on the base, illustrating the first pressing step.
  • FIG. 7B is a side view of the extrusion panel placed on the base, illustrating the first pressing step.
  • FIG. 8 is a side view of the extrusion panel arranged on the base, illustrating a reference example of the pressing method using the pressing jig in the first pressing step.
  • FIG. 9A is a perspective view of the extruded panel placed on the base, illustrating the first bonding step.
  • FIG. 9B is a side view of the extruded panel placed on the base, illustrating the first bonding step.
  • FIG. 10 is a side view of the extrusion panel placed on the base, with the pressing jig and holding jig removed.
  • FIG. 11 is a side view of the extrusion panel placed on the base, illustrating the second placement step, the second pressing step, and the second pressing step.
  • FIG. 12 is a side view of the extruded panel placed on the base, illustrating the second bonding step.
  • FIG. 13 is a side view of an extruded panel placed on a base illustrating machining after joining a plurality of extruded panels.
  • FIG. 14 is a perspective view of a machined structural member.
  • FIG. 1 is a perspective view of a structural member 100 according to this configuration example.
  • FIG. 2 is a side view of the structural member 100 according to this configuration example.
  • the structural member 100 according to this configuration example is a plate-shaped structure, and is composed of a plurality of extruded panels 11 (two in this example).
  • the structural member 100 is configured by joining the side surfaces of the extrusion panel 11 along the extrusion direction to each other.
  • a plate-shaped extruded material made of aluminum or aluminum alloy is used as the extruded panel 11.
  • the aluminum alloy used for the extruded panel 11 is preferably an aluminum alloy such as 5000 series, 6000 series, or 7000 series according to JIS or AA standards, since it has excellent strength and can be made thinner.
  • These hollow extruded aluminum alloy sections are produced by appropriately combining casting (DC casting method or continuous casting method), homogenization heat treatment, hot extrusion, solution treatment and quenching treatment, and if necessary artificial aging treatment.
  • the manufactured product can be suitably used.
  • the structural member 100 can be made lightweight and have a high strength structure.
  • FIG. 3 is a side view of a portion of structural member 100. As shown in FIG. 3, each extruded panel 11 has a plurality of hollow portions 13 formed in the center thereof in the thickness direction. In the extruded panel 11 having the hollow portions 13, ribs 15 are provided between the hollow portions 13.
  • the extruded panel 11 is formed to have a thickness T1 of 15 mm or less, for example.
  • the thickness T2 of the hollow part 13 of the extruded panel 11 is approximately half the thickness T1 of the extruded panel 11, and the thickness T3 of the rib 15 of the extruded panel 11 is half the thickness T2 of the hollow part 13. This is said to be the above. This ensures sufficient strength of the extruded panel 11 having the hollow portion 13.
  • FIG. 4 is a perspective view of the joint portion 31 of the structural member 100.
  • FIG. 5 is a side view of the joint portion 31 of the structural member 100.
  • This joint portion 31 has a first stirring joint portion 33 formed on one surface, which is the front surface, and a second stirring joint portion 35, which is formed on the other surface, which is the back surface.
  • the joint part 31 has a total wall thickness T4 of 15 mm or less (see FIG. 3), and the depth D1 of the first stirring joint part 33 and the depth D2 of the second stirring joint part 35 are each 2 mm or more and 5 mm or less. It has a certain quality. Thereby, sufficient bonding strength in the joint portion 31 is ensured on the front and back sides. Note that the total thickness T4 of the joint portion 31 is approximately the same as the thickness T1 of the extruded panel 11.
  • the edge of the extruded panel 11 is a solid portion 17.
  • This solid portion 17 has a dimension L from the end surface of the edge portion that is half (Wtf/2) of the width Wtf of the shoulder stirring surface 37 formed on the front and back sides of the joint portion 31 and the rib 15 between the hollow portions 13. (L ⁇ Wtf/2+T3), including the thickness T3 (see FIG. 3).
  • the shoulder stirring surface 37 is a stirring surface formed on the surface layer of the joint when the shoulder portion of the friction stirring tool rotates, presses, and slides, and is also called a shoulder mark. It is formed.
  • the extruded panels 11 are bonded to each other with well-balanced and stable bonding strength on the front and back sides at the joint portion 31 having the first agitation bonding portion 33 on the front side and the second agitation bonding portion 35 on the back side. has been done. Therefore, a structural member 100 with sufficient strength in the joint portion 31 and its surroundings can be obtained.
  • FIGS. 6A and 6B are a perspective view and a side view of the extrusion panel arranged on the base, illustrating the first arrangement step and the first pressing step.
  • FIGS. 7A and 7B are a perspective view and a side view of the extrusion panel placed on the base, illustrating the first pressing step.
  • FIGS. 9A and 9B are a perspective view and a side view of the extruded panel placed on the base, illustrating the first joining process.
  • FIG. 10 is a side view showing the extrusion panel 11 on the base 41 with the pressing jig 45 and holding jigs 47 and 49 removed.
  • FIG. 11 is a side view of the extrusion panel placed on the base, illustrating the second placement step, the second pressing step, and the second pressing step.
  • FIG. 12 is a side view of the extruded panel placed on the base, illustrating the second bonding step.
  • two extruded panels 11 to be joined to each other are set on the base 41 (first placement step). Specifically, two extruded panels 11 are arranged side by side on the smooth surface 43 consisting of the upper surface of the base 41, and the edges of these extruded panels 11 are butted together.
  • pressing jigs 45 are attached to edges opposite to the edges of the extruded panels 11 placed on the base 41 that abut each other, and these pressing jigs 45 push the extruded panels 11 close to each other. Push in the direction you want.
  • the pressing jig 45 is formed into a long prismatic shape and has a holding recess 46 on the extrusion panel 11 side.
  • the pressing jig 45 is attached to the base 41 so that the edge of the extrusion panel 11 is fitted into the holding recess 46 .
  • the edge of the extruded panel 11 is held by the pressing jig 45 over the entire length in the longitudinal direction.
  • the extruded panel 11 held by the pressing jig 45 is pressed in the abutting direction by one side wall 46a forming the holding recess 46, and is further pressed against the smooth surface 43 of the base 41 by the other side wall 46b forming the holding recess 46. Being pushed.
  • the extruded panels 11 with their edges abutted against each other are pressed against the smooth surface 43 of the base 41 (first pressing step).
  • first pressing step In order to press the extrusion panel 11 onto the smooth surface 43 of the base 41, a pair of pressing jigs 47 and a pair of pressing jigs 49 are used.
  • the holding jig 47 is formed into a long flat plate shape, and at least the surface that contacts the extrusion panel 11 is a flat portion 47a.
  • This holding jig 47 has a width dimension larger than that of the hollow portion 13 of the extrusion panel 11.
  • This holding jig 47 is arranged at a position corresponding to the central hollow part 13 of each extrusion panel 11 so that both ends thereof hang over the ribs 15 .
  • the holding jig 49 is formed into a long rod shape, and at least the surface that contacts the extrusion panel 11 is a flat portion 49a.
  • This holding jig 49 is arranged at a position that spans the solid portion 17 near the edges of the extruded panels 11 that are abutted against each other.
  • a pair of presser jigs 49 arranged on each extrusion panel 11 are spaced apart from each other with the butt portions of the extrusion panels 11 as boundaries.
  • the pressing jig 45 as well as the holding jigs 47 and 49 apply a load toward the base 41 by a load applying means.
  • FIG. 8 shows a reference example of the pressing method using the holding jigs 47 and 49 in the first pressing step.
  • two flat pressing jigs 47 are arranged above each extrusion panel 11.
  • One presser jig 47 is disposed above the hollow portion 13, and the other presser jig 47 has its widthwise center disposed directly above the rib 15. Both ends of these holding jigs 47 are arranged at positions where they do not touch the ribs 15.
  • the pressing jigs 49 placed near the edges of the extruded panels 11 that are butted against each other are placed on the hollow portion 13 .
  • both ends of the holding jig 47 are placed at positions where they do not overlap the ribs 15 and the holding jig 49 is placed above the hollow part 13, the hollow part 13 in the extrusion panel 11 is There is a risk that the thin-walled portion may be deformed by the load from the holding jigs 47 and 49.
  • the holding jig 47 is arranged so that both ends thereof are placed on the rib 15, and further, the holding jig 49 is placed so that it is placed on the solid part 17. Therefore, even if the extruded panel 11 is pressed toward the base 41 by these holding jigs 47 and 49, the load is received by the ribs 15 and the solid portion 17, so deformation of the extruded panel 11 can be suppressed. .
  • the abutted edges of the extruded panels 11 are friction stir welded from the front side using a friction stir tool Tf (first joining step). Specifically, the friction stirring tool Tf is inserted from above between the holding jigs 49, and the friction stirring tool Tf is moved along the joining line formed by the mutually butted edges (butt parts) of the extrusion panels 11. and the abutted edges (butt portions) are friction stir welded. As a result, the first stirred joint portions 33 are formed at the edges of the extruded panels 11 that are abutted against each other.
  • a joint portion 31 that is joined on one side by the first stirring joint portion 33 is formed at the butted portion.
  • the ends of the joining line are temporarily joined by friction stirring welding with a length of about 50 mm, and then the joining line including the temporary joining part is joined to the entire length. It is preferable to perform friction stir welding over the entire length.
  • the pressing jig 45 and holding jigs 47 and 49 are removed. Then, as shown in FIG. 10, the extruded panels 11 joined to each other are slightly warped at the joint portion 31 due to the stress applied by the friction stir welding. The occurrence of warpage that occurs at the joint portion 31 can be suppressed by pressing the extruded panel 11 against the smooth surface 43 of the base 41 using holding jigs 47 and 49 during friction stir welding, but it is difficult to completely eliminate it. It is. Therefore, the extruded panels 11 that are friction stir welded to each other on one side gradually rise slightly upward from the smooth surface 43 of the base 41 toward the edge opposite to the side where they are joined. As a result, a slight gap G is created between the outer edge of the extruded panel 11 and the smooth surface 43 of the base 41.
  • the two extruded panels 11 joined on the front side are reversed and placed on the smooth surface 43 of the base 41 (second placement step). Then, the extruded panels 11 are pressed in a direction closer to each other by the pressing jig 45 (second pressing step), and the extruded panels 11 are further pressed against the base 41 by the pressing jigs 47 and 49 (second pressing step).
  • the two extruded panels 11 joined to each other are slightly warped at the joint portion 31.
  • the two extruded panels 11 joined to each other are reversed and placed on the smooth surface 43 of the base 41, a slight lifting occurs in the central portion where the joint portion 31 is located, but the pressing jig 47 , 49 to press the extruded panel 11 against the base 41, the slight lifting of the central portion is eliminated.
  • the inverted extrusion panel 11 can be placed on the base 41 in a flattened state.
  • the joint portions 31 joined at the first stir joint portion 33 of the extruded panel 11 are friction stir welded from the back side using a friction stir tool Tf (second joining step).
  • a second stirring joint portion 35 is formed at the joint portion 31 of the extrusion panel 11 .
  • the ends of the joining line are temporarily joined by friction stirring welding to a length of about 50 mm, and then the entire length of the joining line, including the temporary joining part, is friction stir welded. Bonding is preferred.
  • the pressing jig 45 and holding jigs 47 and 49 are removed.
  • a structural member 100 in which two extruded panels 11 are joined at the joint portion 31 is obtained.
  • the warpage caused by friction stir welding is canceled out on the front and back sides, so that there is almost no deformation such as warpage.
  • the extruded panels 11 are pressed in a direction toward each other, and further, the extruded panels 11 are pressed against the base 41, so that warping that occurs at the joining location can be suppressed.
  • by performing friction stir welding from the front and back sides it is possible to offset the warpage that occurs at the joining location. As a result, a high-quality structural member 100 in which the extruded panels 11 are joined to each other with suppressed warpage can be obtained.
  • FIG. 13 is a side view of the extruded panel 11 placed on the base 41, illustrating machining of the extruded panel 11 after joining.
  • FIG. 14 is a perspective view of a structural member 100 that has been machined. As shown in FIG. 13, after forming the second stirring joint portion 35, some of the pressing ribs 47, 49 are removed. For example, in a machine tool such as a machining center, a cutting tool Tc such as a reamer is replaced with the friction stirring tool Tf, and the structural member 100 is machined using this cutting tool Tc. For example, as shown in FIG. 14, a portion of one side of the structural member 100 is removed to form a concave portion 11a.
  • machining can be easily performed by replacing the cutting tool Tc such as a reamer. Moreover, by performing machining on the structural member 100 restrained by the base 41, stress in the structural member 100 is released, so that deformation caused by friction stir welding can be further reduced.
  • the structural member 100 in which two extruded panels 11 are joined together and the manufacturing method thereof are described, but the number of extruded panels 11 to be joined is not limited to two, and may be three or more. good.
  • the present invention is not limited to the embodiments described above, and those skilled in the art can combine the configurations of the embodiments with each other, modify and apply them based on the description of the specification and well-known techniques. It is also contemplated by the present invention to do so, and is within the scope for which protection is sought.
  • the joint portion of the plurality of extruded panels is a first stirring joint formed on the surface side; a second stirring joint formed on the back side; has The total thickness of the joint portion is 15 mm or less,
  • the edge on the joint part side of the extruded panel having the hollow part has a dimension equal to or larger than the sum of half the width of the shoulder stirring surfaces formed on the front and back sides of the joint part and the thickness of the ribs between the hollow parts.
  • a structural member having a solid portion with a length dimension of According to this structural member, a plurality of extruded panels are joined with a well-balanced and stable bonding strength on the front and back sides in a joint having a first stirred joint on the front side and a second stirred joint on the back side. It is possible to provide structural members.
  • the joint part has a total wall thickness of 15 mm or less, and the edge on the joint part side of the extruded panel having a hollow part is the sum of half the width of the shoulder stirring surface and the thickness of the rib between the hollow parts. It has a solid part with a length dimension greater than the length dimension. Therefore, a structural member with sufficient strength at the joint and its surroundings can be obtained.
  • first stirring joint portion and the second stirring joint portion each have a depth of 2 mm or more and 5 mm or less.
  • the depth of the first stirred joint and the second stirred joint is set to 2 mm or more and 5 mm or less, so that sufficient joint strength can be ensured on the front and back sides of the joint.

Abstract

This structure member comprises a joint portion in which the ends of a plurality of extruded panels made of extruded material and at least one of which has a hollow portion are butted together and friction stir-welded. The joint portion of the plurality of extruded panels includes a first stir-welded portion formed on the upper surface side, and a second stir-welded portion formed on the back surface side. The total thickness of the joint portion is less than or equal to 15 mm. The end on the joint portion side of the extruded panel having the hollow portion includes a solid portion of a length dimension greater than or equal to a total dimension of one-half the width of a shoulder stirred surface formed on the upper and back sides of the joint portion and the thickness of a rib between the hollow portions.

Description

構造部材及び構造部材の製造方法Structural members and methods for manufacturing structural members
　本発明は、構造部材及び構造部材の製造方法に関する。 The present invention relates to a structural member and a method for manufacturing the structural member.
　電力により走行する車両（電気自動車、ハイブリッド自動車等を含む）、及び自走式ロボット等の機器の開発が進展している。このような車両又は機器に搭載する電池システムは、一般的に、多数のバッテリー（電池、電池セル）をバッテリートレイに収容した構成を有している。 The development of vehicles that run on electricity (including electric vehicles, hybrid vehicles, etc.) and devices such as self-propelled robots is progressing. A battery system mounted on such a vehicle or device generally has a configuration in which a large number of batteries (batteries, battery cells) are housed in a battery tray.
　特許文献１には、複数の電池パックを収容する電池パック構造体として、一対の前フレーム及び後フレームとをそれぞれ左右のサイドフレームにて連結した外枠体と、この外枠体の底部側に配設した冷却部材とを備え、冷却部材が上部冷却層と下部冷却層とを重ね合せて内側に冷却流路を形成したものが開示されている。 Patent Document 1 discloses, as a battery pack structure that accommodates a plurality of battery packs, an outer frame body in which a pair of front frames and a rear frame are connected by left and right side frames, respectively, and a bottom side of the outer frame body. A cooling member is disclosed in which the cooling member has an upper cooling layer and a lower cooling layer stacked on top of each other to form a cooling flow path inside.
　また、特許文献２には、底部と、底部から立設した側壁部にて内側に電池の収納部を形成し、底部がヒートパイプ構造になっている電池収納構造体が示されている。 Further, Patent Document 2 discloses a battery storage structure in which a battery storage part is formed inside by a bottom part and a side wall part standing up from the bottom part, and the bottom part has a heat pipe structure.
　さらに、特許文献３には、対向配置した第１サイド部材と第２サイド部材とで、電池モジュールの収容部を形成した車両用電池ケース構造体が示されている。この電池ケース構造体では、第１サイド部材と第２サイド部材のうち、一方又は両方は、電池モジュールの側部側に位置する骨格中空部と電池モジュールの下側に位置するアンダー中空部とを有する。また、電池モジュールの収容部の収容底部とアンダー中空部との間にクリアランス中空部を有する。さらに、骨格中空部、クリアランス中空部及びアンダー中空部が一体的に形成されている。 Further, Patent Document 3 discloses a battery case structure for a vehicle in which a first side member and a second side member arranged to face each other form a housing portion for a battery module. In this battery case structure, one or both of the first side member and the second side member has a skeleton hollow part located on the side side of the battery module and an under hollow part located on the lower side of the battery module. have Moreover, a clearance hollow part is provided between the housing bottom part of the battery module housing part and the under hollow part. Furthermore, the skeleton hollow part, the clearance hollow part, and the under hollow part are integrally formed.
　また、特許文献４には、継手部分を表裏から摩擦撹拌溶接して部材同士を接合する技術が開示されている。 Additionally, Patent Document 4 discloses a technique for joining members together by friction stir welding the joint portion from the front and back.
日本国特開２０２１－１４０８６３号公報Japanese Patent Application Publication No. 2021-140863 日本国特開２０２０－１９２９１号公報Japanese Patent Application Publication No. 2020-19291 日本国特開２０２１－７０３８６号公報Japanese Patent Application Publication No. 2021-70386 日本国特許第４８３８３８５号公報Japanese Patent No. 4838385
　ところで、特許文献１に記載の構造体は、その底部となる冷却部材を、それぞれ薄い板状の上部冷却層と下部冷却層とを重ね合せて形成しているため、剛性を十分に確保することが困難である。 By the way, in the structure described in Patent Document 1, since the cooling member serving as the bottom thereof is formed by stacking thin plate-shaped upper cooling layer and lower cooling layer, sufficient rigidity cannot be ensured. is difficult.
　また、特許文献２から４に記載の構造体は、複数の押出材の端面を突き合わせて接合させて底部を構成する際に、その接合箇所に熱と応力が集中して歪みが生じ易く、高精度に作製することが困難である。 Furthermore, in the structures described in Patent Documents 2 to 4, when forming the bottom by butting and joining the end surfaces of a plurality of extruded materials, heat and stress are likely to be concentrated at the joints, causing distortion, and the height of the structure is high. It is difficult to manufacture with precision.
　そこで本発明は、十分な剛性を確保しつつ高精度に作製された構造部材及び構造部材の製造方法を提供することを目的とする。 Therefore, an object of the present invention is to provide a structural member manufactured with high precision while ensuring sufficient rigidity, and a method for manufacturing the structural member.
　本発明は下記構成からなる。
（１）　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部が突き合わされて摩擦撹拌接合された継手部を有する構造部材であって、
　前記複数の押出パネルの前記継手部は、
　表面側に形成された第１撹拌接合部と、
　裏面側に形成された第２撹拌接合部と、
　を有し、
　前記継手部の総肉厚が１５ｍｍ以下であり、
　前記中空部を有する前記押出パネルにおける前記継手部側の縁部は、前記継手部における表裏に形成されたショルダー撹拌面の幅の半分と前記中空部同士の間のリブの厚さとの合計寸法以上の長さ寸法の中実部を有する、
　構造部材。
（２）　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部を突き合わせて摩擦撹拌接合する構造部材の製造方法であって、
　ベースに設けられた平滑面上に、互いに接合させる複数の前記押出パネルを配置させる第１配置工程と、
　前記複数の押出パネルを互いに近接する方向へ押圧して前記縁部を突き合わせる第１押圧工程と、
　平面部を有する押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第１押し付け工程と、
　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって表面側から摩擦撹拌接合させる第１接合工程と、
　表面側で接合された複数の前記押出パネルを反転させて前記ベースの前記平滑面上に配置させる第２配置工程と、
　前記複数の押出パネルを互いに近接する方向へ押圧する第２押圧工程と、
　前記押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第２押し付け工程と、
　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって裏面側から摩擦撹拌接合させる第２接合工程と、
　を含む、
　構造部材の製造方法。 The present invention consists of the following configuration.
(1) A structural member having a joint portion in which the edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are butted and friction stir welded,
The joint portion of the plurality of extruded panels is
a first stirring joint formed on the surface side;
a second stirring joint formed on the back side;
has
The total thickness of the joint portion is 15 mm or less,
The edge on the joint part side of the extruded panel having the hollow part has a dimension equal to or larger than the sum of half the width of the shoulder stirring surfaces formed on the front and back sides of the joint part and the thickness of the ribs between the hollow parts. having a solid portion with a length dimension of
Structural members.
(2) A method for manufacturing a structural member in which edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are butted and friction stir welded,
a first arrangement step of arranging a plurality of extruded panels to be joined to each other on a smooth surface provided on a base;
a first pressing step of pressing the plurality of extruded panels in a direction closer to each other to butt the edges;
a first pressing step of bringing the flat part of a pressing jig having a flat part into contact with the extrusion panel and pressing the extrusion panel against the base;
A first joining step of performing friction stir welding from the surface side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
a second placement step of inverting the plurality of extruded panels joined on the front side and placing them on the smooth surface of the base;
a second pressing step of pressing the plurality of extruded panels in a direction closer to each other;
a second pressing step of bringing the flat part of the holding jig into contact with the extrusion panel and pressing the extrusion panel against the base;
a second joining step of performing friction stir welding from the back side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
including,
Method of manufacturing structural members.
　本発明によれば、十分な剛性を確保しつつ高精度に作製された構造部材及び構造部材の製造方法を提供できる。 According to the present invention, it is possible to provide a structural member manufactured with high precision while ensuring sufficient rigidity, and a method for manufacturing the structural member.
図１は、本構成例に係る構造部材の斜視図である。FIG. 1 is a perspective view of a structural member according to this configuration example. 図２は、本構成例に係る構造部材の側面図である。FIG. 2 is a side view of the structural member according to this configuration example. 図３は、構造部材の一部の側面図である。FIG. 3 is a side view of a portion of the structural member. 図４は、構造部材の継手部における斜視図である。FIG. 4 is a perspective view of the joint portion of the structural member. 図５は、構造部材の継手部における側面図である。FIG. 5 is a side view of the joint portion of the structural member. 図６Ａは、第１配置工程及び第１押圧工程を説明するベース上に配置された押出パネルの斜視図である。FIG. 6A is a perspective view of the extrusion panel placed on the base, illustrating the first placement step and the first pressing step. 図６Ｂは、第１配置工程及び第１押圧工程を説明するベース上に配置された押出パネルの側面図である。FIG. 6B is a side view of the extrusion panel placed on the base, illustrating the first placement step and the first pressing step. 図７Ａは、第１押し付け工程を説明するベース上に配置された押出パネルの斜視図である。FIG. 7A is a perspective view of the extrusion panel placed on the base, illustrating the first pressing step. 図７Ｂは、第１押し付け工程を説明するベース上に配置された押出パネルの側面図である。FIG. 7B is a side view of the extrusion panel placed on the base, illustrating the first pressing step. 図８は、第１押し付け工程における押さえ治具による押し付け方の参考例を説明するベース上に配置された押出パネルの側面図である。FIG. 8 is a side view of the extrusion panel arranged on the base, illustrating a reference example of the pressing method using the pressing jig in the first pressing step. 図９Ａは、第１接合工程を説明するベース上に配置された押出パネルの斜視図である。FIG. 9A is a perspective view of the extruded panel placed on the base, illustrating the first bonding step. 図９Ｂは、第１接合工程を説明するベース上に配置された押出パネルの側面図である。FIG. 9B is a side view of the extruded panel placed on the base, illustrating the first bonding step. 図１０は、押圧治具及び押さえ治具を取り外した状態を示すベース上に配置された押出パネルの側面図である。FIG. 10 is a side view of the extrusion panel placed on the base, with the pressing jig and holding jig removed. 図１１は、第２配置工程、第２押圧工程及び第２押し付け工程を説明するベース上に配置された押出パネルの側面図である。FIG. 11 is a side view of the extrusion panel placed on the base, illustrating the second placement step, the second pressing step, and the second pressing step. 図１２は、第２接合工程を説明するベース上に配置された押出パネルの側面図である。FIG. 12 is a side view of the extruded panel placed on the base, illustrating the second bonding step. 図１３は、複数の押出パネルの接合後の機械加工について説明するベース上に配置された押出パネルの側面図である。FIG. 13 is a side view of an extruded panel placed on a base illustrating machining after joining a plurality of extruded panels. 図１４は、機械加工が施された構造部材の斜視図である。FIG. 14 is a perspective view of a machined structural member.
　以下、本発明の実施形態について、図面を参照して詳細に説明する。
　図１は、本構成例に係る構造部材１００の斜視図である。図２は、本構成例に係る構造部材１００の側面図である。
　図１及び図２に示すように、本構成例に係る構造部材１００は、板状に形成された構造体であり、複数（本例では一例として２つ）の押出パネル１１から構成される。構造部材１００は、押出パネル１１の押出方向に沿った側面同士を互いに接合して構成されている。 Embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a perspective view of a structural member 100 according to this configuration example. FIG. 2 is a side view of the structural member 100 according to this configuration example.
As shown in FIGS. 1 and 2, the structural member 100 according to this configuration example is a plate-shaped structure, and is composed of a plurality of extruded panels 11 (two in this example). The structural member 100 is configured by joining the side surfaces of the extrusion panel 11 along the extrusion direction to each other.
　押出パネル１１としては、いずれもアルミニウムまたはアルミニウム合金を素材とした板状の押出材が用いられる。押出パネル１１として使用されるアルミニウム合金は、優れた強度を有し、より薄肉化が可能である点で、ＪＩＳ又はＡＡ規格でいう５０００系、６０００系、７０００系などのアルミ合金が好ましい。これらアルミニウム合金の中空押出形材は、鋳造（ＤＣ鋳造法又は連続鋳造法）、均質化熱処理、熱間押出、溶体化および焼入れ処理、必要により人工時効処理、などの調質処理を適宜組み合わせて製造したものを好適に使用できる。これによれば、構造部材１００を軽量化しつつ高強度な構成にできる。 As the extruded panel 11, a plate-shaped extruded material made of aluminum or aluminum alloy is used. The aluminum alloy used for the extruded panel 11 is preferably an aluminum alloy such as 5000 series, 6000 series, or 7000 series according to JIS or AA standards, since it has excellent strength and can be made thinner. These hollow extruded aluminum alloy sections are produced by appropriately combining casting (DC casting method or continuous casting method), homogenization heat treatment, hot extrusion, solution treatment and quenching treatment, and if necessary artificial aging treatment. The manufactured product can be suitably used. According to this, the structural member 100 can be made lightweight and have a high strength structure.
　図３は、構造部材１００の一部の側面図である。
　図３に示すように、押出パネル１１には、その厚さ方向の中央に、それぞれ複数の中空部１３が成形されている。この中空部１３を有する押出パネル１１は、中空部１３同士の間にリブ１５が設けられている。 FIG. 3 is a side view of a portion of structural member 100.
As shown in FIG. 3, each extruded panel 11 has a plurality of hollow portions 13 formed in the center thereof in the thickness direction. In the extruded panel 11 having the hollow portions 13, ribs 15 are provided between the hollow portions 13.
　押出パネル１１は、例えば、厚さＴ１が１５ｍｍ以下に成形されている。この押出パネル１１の中空部１３の厚さＴ２は、押出パネル１１の厚さＴ１の半分程度とされており、押出パネル１１のリブ１５の厚さＴ３は、中空部１３の厚さＴ２の半分以上とされている。これにより、中空部１３を有する押出パネル１１の強度が十分に確保される。 The extruded panel 11 is formed to have a thickness T1 of 15 mm or less, for example. The thickness T2 of the hollow part 13 of the extruded panel 11 is approximately half the thickness T1 of the extruded panel 11, and the thickness T3 of the rib 15 of the extruded panel 11 is half the thickness T2 of the hollow part 13. This is said to be the above. This ensures sufficient strength of the extruded panel 11 having the hollow portion 13.
　次に、押出パネル１１同士の接合箇所の構造について詳細に説明する。
　図４は、構造部材１００の継手部３１における斜視図である。図５は、構造部材１００の継手部３１における側面図である。 Next, the structure of the joints between the extruded panels 11 will be described in detail.
FIG. 4 is a perspective view of the joint portion 31 of the structural member 100. FIG. 5 is a side view of the joint portion 31 of the structural member 100.
　図４及び図５に示すように、構造部材１００は、押出パネル１１の縁部が突き合わされて摩擦撹拌接合され、この接合された部分が継手部３１とされている。この継手部３１は、一方の面である表面側に形成された第１撹拌接合部３３と、他方の面である裏面側に形成された第２撹拌接合部３５とを有している。 As shown in FIGS. 4 and 5, in the structural member 100, the edges of the extruded panels 11 are butted together and friction stir welded, and this joined portion is used as the joint portion 31. This joint portion 31 has a first stirring joint portion 33 formed on one surface, which is the front surface, and a second stirring joint portion 35, which is formed on the other surface, which is the back surface.
　継手部３１は、総肉厚Ｔ４が１５ｍｍ以下（図３参照）であり、第１撹拌接合部３３の深さＤ１及び第２撹拌接合部３５の深さＤ２は、それぞれ２ｍｍ以上５ｍｍ以下の深さを有している。これにより、継手部３１における接合強度が表裏で十分に確保されている。
なお、継手部３１の総肉厚Ｔ４は、押出パネル１１の厚さＴ１と略同一厚さとされている。 The joint part 31 has a total wall thickness T4 of 15 mm or less (see FIG. 3), and the depth D1 of the first stirring joint part 33 and the depth D2 of the second stirring joint part 35 are each 2 mm or more and 5 mm or less. It has a certain quality. Thereby, sufficient bonding strength in the joint portion 31 is ensured on the front and back sides.
Note that the total thickness T4 of the joint portion 31 is approximately the same as the thickness T1 of the extruded panel 11.
　押出パネル１１の縁部は、中実部１７とされている。この中実部１７は、縁部の端面からの寸法Ｌが、継手部３１における表裏に形成されたショルダー撹拌面３７の幅Ｗｔｆの半分（Ｗｔｆ／２）と中空部１３同士の間のリブ１５の厚さＴ３（図３参照）との合計寸法以上（Ｌ≧Ｗｔｆ／２＋Ｔ３）とされている。なお、ショルダー撹拌面３７は、摩擦撹拌ツールのショルダー部が回転、押圧、摺動することによって接合部表層部に形成される撹拌面で、ショルダーマークとも呼ばれ、継手部３１に沿って全長にわたって形成されている。 The edge of the extruded panel 11 is a solid portion 17. This solid portion 17 has a dimension L from the end surface of the edge portion that is half (Wtf/2) of the width Wtf of the shoulder stirring surface 37 formed on the front and back sides of the joint portion 31 and the rib 15 between the hollow portions 13. (L≧Wtf/2+T3), including the thickness T3 (see FIG. 3). The shoulder stirring surface 37 is a stirring surface formed on the surface layer of the joint when the shoulder portion of the friction stirring tool rotates, presses, and slides, and is also called a shoulder mark. It is formed.
　これにより、構造部材１００は、表面側の第１撹拌接合部３３と裏面側の第２撹拌接合部３５とを有する継手部３１において、押出パネル１１同士が表裏でバランスよく安定した接合強度で接合されている。したがって、継手部３１及びその周辺における十分な強度が確保された構造部材１００が得られる。 As a result, in the structural member 100, the extruded panels 11 are bonded to each other with well-balanced and stable bonding strength on the front and back sides at the joint portion 31 having the first agitation bonding portion 33 on the front side and the second agitation bonding portion 35 on the back side. has been done. Therefore, a structural member 100 with sufficient strength in the joint portion 31 and its surroundings can be obtained.
　次に、上記の構造部材１００の製造方法について説明する。
　図６Ａ及び図６Ｂは、第１配置工程及び第１押圧工程を説明するベース上に配置された押出パネルの斜視図、及び側面図である。図７Ａ及び図７Ｂは、第１押し付け工程を説明するベース上に配置された押出パネルの斜視図、及び側面図である。図９Ａ及び図９Ｂは、第１接合工程を説明するベース上に配置された押出パネルの斜視図、及び側面図である。図１０は、押圧治具４５及び押さえ治具４７，４９を取り外した状態を示すベース４１上の押出パネル１１を示す側面図である。図１１は、第２配置工程、第２押圧工程及び第２押し付け工程を説明するベース上に配置された押出パネルの側面図である。図１２は、第２接合工程を説明するベース上に配置された押出パネルの側面図である。 Next, a method for manufacturing the above structural member 100 will be explained.
6A and 6B are a perspective view and a side view of the extrusion panel arranged on the base, illustrating the first arrangement step and the first pressing step. FIGS. 7A and 7B are a perspective view and a side view of the extrusion panel placed on the base, illustrating the first pressing step. FIGS. 9A and 9B are a perspective view and a side view of the extruded panel placed on the base, illustrating the first joining process. FIG. 10 is a side view showing the extrusion panel 11 on the base 41 with the pressing jig 45 and holding jigs 47 and 49 removed. FIG. 11 is a side view of the extrusion panel placed on the base, illustrating the second placement step, the second pressing step, and the second pressing step. FIG. 12 is a side view of the extruded panel placed on the base, illustrating the second bonding step.
　図６Ａ及び図６Ｂに示すように、ベース４１に、互いに接合させる２枚の押出パネル１１をセットする（第１配置工程）。具体的には、ベース４１の上面からなる平滑面４３上に２枚の押出パネル１１を並べて配置させ、これらの押出パネル１１の縁部を突き合わせる。 As shown in FIGS. 6A and 6B, two extruded panels 11 to be joined to each other are set on the base 41 (first placement step). Specifically, two extruded panels 11 are arranged side by side on the smooth surface 43 consisting of the upper surface of the base 41, and the edges of these extruded panels 11 are butted together.
　次に、ベース４１の平滑面４３上に配置させた２枚の押出パネル１１を互いに近接する方向へ押圧して縁部を突き合わせる（第１押圧工程）。具体的には、ベース４１上に配置させた押出パネル１１の互いに突き合わせた縁部と反対側の縁部に押圧治具４５を装着し、これらの押圧治具４５によって押出パネル１１同士を互いに近接する方向へ押し付ける。押圧治具４５は、長尺の角柱状に形成されており、押出パネル１１側に保持凹部４６を有している。押圧治具４５は、保持凹部４６に押出パネル１１の縁部を嵌め込むようにベース４１に装着される。これにより、押出パネル１１は、その縁部が長手方向の全長にわたって押圧治具４５によって保持される。押圧治具４５によって保持される押出パネル１１は、保持凹部４６を形成する一方の側壁４６ａによって突き合わせ方向に押圧され、さらに、保持凹部４６を形成する他方の側壁４６ｂによってベース４１の平滑面４３に押し付けられる。 Next, the two extruded panels 11 placed on the smooth surface 43 of the base 41 are pressed in a direction toward each other so that their edges butt (first pressing step). Specifically, pressing jigs 45 are attached to edges opposite to the edges of the extruded panels 11 placed on the base 41 that abut each other, and these pressing jigs 45 push the extruded panels 11 close to each other. Push in the direction you want. The pressing jig 45 is formed into a long prismatic shape and has a holding recess 46 on the extrusion panel 11 side. The pressing jig 45 is attached to the base 41 so that the edge of the extrusion panel 11 is fitted into the holding recess 46 . Thereby, the edge of the extruded panel 11 is held by the pressing jig 45 over the entire length in the longitudinal direction. The extruded panel 11 held by the pressing jig 45 is pressed in the abutting direction by one side wall 46a forming the holding recess 46, and is further pressed against the smooth surface 43 of the base 41 by the other side wall 46b forming the holding recess 46. Being pushed.
　図７Ａ及び図７Ｂに示すように、縁部を互いに突き合わせた押出パネル１１を、ベース４１の平滑面４３へ押し付ける（第１押し付け工程）。押出パネル１１をベース４１の平滑面４３へ押し付けるには、一対の押さえ治具４７及び一対の押さえ治具４９を用いる。 As shown in FIGS. 7A and 7B, the extruded panels 11 with their edges abutted against each other are pressed against the smooth surface 43 of the base 41 (first pressing step). In order to press the extrusion panel 11 onto the smooth surface 43 of the base 41, a pair of pressing jigs 47 and a pair of pressing jigs 49 are used.
　押さえ治具４７は、長尺の平板状に形成されており、少なくとも押出パネル１１に接触する面が平面部４７ａとされている。この押さえ治具４７は、押出パネル１１の中空部１３よりも大きな幅寸法を有している。この押さえ治具４７は、各押出パネル１１の中央の中空部１３に対応する位置において、両端がリブ１５にかかるように配置される。押さえ治具４９は、長尺の棒状に形成されており、少なくとも押出パネル１１に接触する面が平面部４９ａとされている。この押さえ治具４９は、押出パネル１１の互いに突き合わされた縁部寄りにおいて、中実部１７にかかる位置に配置される。それぞれの押出パネル１１上に配置させた一対の押さえ治具４９は、押出パネル１１同士の突き合わせ箇所を境に互いに間隔をあけて配置される。 The holding jig 47 is formed into a long flat plate shape, and at least the surface that contacts the extrusion panel 11 is a flat portion 47a. This holding jig 47 has a width dimension larger than that of the hollow portion 13 of the extrusion panel 11. This holding jig 47 is arranged at a position corresponding to the central hollow part 13 of each extrusion panel 11 so that both ends thereof hang over the ribs 15 . The holding jig 49 is formed into a long rod shape, and at least the surface that contacts the extrusion panel 11 is a flat portion 49a. This holding jig 49 is arranged at a position that spans the solid portion 17 near the edges of the extruded panels 11 that are abutted against each other. A pair of presser jigs 49 arranged on each extrusion panel 11 are spaced apart from each other with the butt portions of the extrusion panels 11 as boundaries.
　このように、押出パネル１１上に配置された押さえ治具４７，４９には、クランパや錘等の荷重付与手段によってベース４１へ向かって荷重が付与される。これにより、ベース４１上の押出パネル１１は、その長手方向の全長にわたって押さえ治具４７，４９によってベース４１の平滑面４３に対して隙間なく押し付けられた状態とされる。 In this way, a load is applied to the holding jigs 47 and 49 placed on the extrusion panel 11 toward the base 41 by load applying means such as a clamper or a weight. As a result, the extruded panel 11 on the base 41 is pressed against the smooth surface 43 of the base 41 without any gaps by the holding jigs 47 and 49 over its entire length in the longitudinal direction.
　なお、押さえ治具４７，４９とともに、押圧治具４５も荷重付与手段によってベース４１へ向かって荷重を付与するのが好ましい。 Note that it is preferable that the pressing jig 45 as well as the holding jigs 47 and 49 apply a load toward the base 41 by a load applying means.
　ここで、図８は、第１押し付け工程における押さえ治具４７，４９による押し付け方の参考例を示している。
　図８に示すように、参考例では、それぞれの押出パネル１１の上部に、平板状の押さえ治具４７が２つずつ配置されている。一方の押さえ治具４７は、中空部１３の上部に配置され、他方の押さえ治具４７は、リブ１５の真上に幅方向の中央が配置されている。これらの押さえ治具４７は、いずれも両端がリブ１５にかからない位置に配置されている。さらに、押出パネル１１の互いに突き合わされた縁部寄りに配置された押さえ治具４９は、中空部１３上に配置されている。 Here, FIG. 8 shows a reference example of the pressing method using the holding jigs 47 and 49 in the first pressing step.
As shown in FIG. 8, in the reference example, two flat pressing jigs 47 are arranged above each extrusion panel 11. One presser jig 47 is disposed above the hollow portion 13, and the other presser jig 47 has its widthwise center disposed directly above the rib 15. Both ends of these holding jigs 47 are arranged at positions where they do not touch the ribs 15. Furthermore, the pressing jigs 49 placed near the edges of the extruded panels 11 that are butted against each other are placed on the hollow portion 13 .
　このように、押さえ治具４７の両端をリブ１５にかからない位置に配置させ、押さえ治具４９を中空部１３の上部に配置させた参考例の場合、押出パネル１１における中空部１３を設けたことで薄肉とされた箇所が押さえ治具４７，４９からの荷重によって変形するおそれがある。 In the case of the reference example in which both ends of the holding jig 47 are placed at positions where they do not overlap the ribs 15 and the holding jig 49 is placed above the hollow part 13, the hollow part 13 in the extrusion panel 11 is There is a risk that the thin-walled portion may be deformed by the load from the holding jigs 47 and 49.
　これに対して、本構成例では、押さえ治具４７を、その両端がリブ１５にかかるように配置させ、さらに、押さえ治具４９を中実部１７にかかるように配置させている。したがって、これらの押さえ治具４７，４９によって押出パネル１１をベース４１へ向かって押圧させても、その荷重がリブ１５及び中実部１７によって受け止められるので、押出パネル１１の変形を抑えることができる。 On the other hand, in this configuration example, the holding jig 47 is arranged so that both ends thereof are placed on the rib 15, and further, the holding jig 49 is placed so that it is placed on the solid part 17. Therefore, even if the extruded panel 11 is pressed toward the base 41 by these holding jigs 47 and 49, the load is received by the ribs 15 and the solid portion 17, so deformation of the extruded panel 11 can be suppressed. .
　図９Ａ及び図９Ｂに示すように、押出パネル１１の互いに突き合わされた縁部を摩擦撹拌ツールＴｆによって表面側から摩擦撹拌接合させる（第１接合工程）。具体的には、押さえ治具４９同士の間に摩擦撹拌ツールＴｆを上方から挿し込み、押出パネル１１の互いに突き合わされた縁部（突き合わせ部）からなる接合線に沿って摩擦撹拌ツールＴｆを移動させ、互いに突き合わされた縁部（突き合わせ部）を摩擦撹拌接合させる。これにより、押出パネル１１の互いに突き合わされた縁部に第１撹拌接合部３３を形成する。これにより、互いに突き合わされた押出パネル１１には、その突き合わせ箇所に、第１撹拌接合部３３によって片面側で接合された継手部３１が形成される。なお、摩擦撹拌ツールＴｆによる摩擦撹拌接合を行う際には、まず、接合線における端部を５０ｍｍ程度の長さで摩擦撹拌接合して仮接合し、その後、仮接合箇所を含む接合線を全長にわたって摩擦撹拌接合するのが好ましい。 As shown in FIGS. 9A and 9B, the abutted edges of the extruded panels 11 are friction stir welded from the front side using a friction stir tool Tf (first joining step). Specifically, the friction stirring tool Tf is inserted from above between the holding jigs 49, and the friction stirring tool Tf is moved along the joining line formed by the mutually butted edges (butt parts) of the extrusion panels 11. and the abutted edges (butt portions) are friction stir welded. As a result, the first stirred joint portions 33 are formed at the edges of the extruded panels 11 that are abutted against each other. As a result, in the extruded panels 11 that are butted against each other, a joint portion 31 that is joined on one side by the first stirring joint portion 33 is formed at the butted portion. In addition, when performing friction stir welding using the friction stir tool Tf, first, the ends of the joining line are temporarily joined by friction stirring welding with a length of about 50 mm, and then the joining line including the temporary joining part is joined to the entire length. It is preferable to perform friction stir welding over the entire length.
　摩擦撹拌ツールＴｆによって第１撹拌接合部３３を形成したら、押圧治具４５及び押さえ治具４７，４９を取り外す。すると、図１０に示すように、互いに接合された押出パネル１１は、摩擦撹拌接合によって付与された応力により、継手部３１を境に僅かに反りが生じる。この継手部３１を境に生じる反りの発生は、摩擦撹拌接合時に押さえ治具４７，４９によって押出パネル１１をベース４１の平滑面４３に押し付けることで抑えることができるが、完全になくすことは困難である。したがって、一方の面側で互いに摩擦撹拌接合された押出パネル１１は、互いの接合側と反対側の縁部へ向かって、ベース４１の平滑面４３から次第に上方へ僅かに浮き上がる。これにより、押出パネル１１の外側の縁部とベース４１の平滑面４３との間には僅かな隙間Ｇが生じる。 Once the first stirring joint portion 33 is formed using the friction stirring tool Tf, the pressing jig 45 and holding jigs 47 and 49 are removed. Then, as shown in FIG. 10, the extruded panels 11 joined to each other are slightly warped at the joint portion 31 due to the stress applied by the friction stir welding. The occurrence of warpage that occurs at the joint portion 31 can be suppressed by pressing the extruded panel 11 against the smooth surface 43 of the base 41 using holding jigs 47 and 49 during friction stir welding, but it is difficult to completely eliminate it. It is. Therefore, the extruded panels 11 that are friction stir welded to each other on one side gradually rise slightly upward from the smooth surface 43 of the base 41 toward the edge opposite to the side where they are joined. As a result, a slight gap G is created between the outer edge of the extruded panel 11 and the smooth surface 43 of the base 41.
　図１１に示すように、表面側で接合された２枚の押出パネル１１を反転させてベース４１の平滑面４３上に配置させる（第２配置工程）。そして、押圧治具４５によって押出パネル１１同士を互いに近接する方向へ押圧し（第２押圧工程）、さらに、押さえ治具４７，４９によって押出パネル１１をベース４１へ押し付ける（第２押し付け工程）。 As shown in FIG. 11, the two extruded panels 11 joined on the front side are reversed and placed on the smooth surface 43 of the base 41 (second placement step). Then, the extruded panels 11 are pressed in a direction closer to each other by the pressing jig 45 (second pressing step), and the extruded panels 11 are further pressed against the base 41 by the pressing jigs 47 and 49 (second pressing step).
　このとき、互いに接合させた２枚の押出パネル１１には、継手部３１を境に僅かに反りが生じている。このため、互いに接合された２枚の押出パネル１１を反転させてベース４１の平滑面４３上に配置させた際に、継手部３１を有する中央部分に僅かな浮き上がりが生じるが、押さえ治具４７，４９によって押出パネル１１をベース４１へ押し付けることにより、中央部分の僅かな浮き上がりがなくされる。これにより、反転させた押出パネル１１を平坦化させた状態でベース４１に配置させることができる。 At this time, the two extruded panels 11 joined to each other are slightly warped at the joint portion 31. For this reason, when the two extruded panels 11 joined to each other are reversed and placed on the smooth surface 43 of the base 41, a slight lifting occurs in the central portion where the joint portion 31 is located, but the pressing jig 47 , 49 to press the extruded panel 11 against the base 41, the slight lifting of the central portion is eliminated. Thereby, the inverted extrusion panel 11 can be placed on the base 41 in a flattened state.
　図１２に示すように、押出パネル１１の第１撹拌接合部３３で接合された継手部３１を摩擦撹拌ツールＴｆによって裏面側から摩擦撹拌接合させる（第２接合工程）。これにより、押出パネル１１の継手部３１に第２撹拌接合部３５を形成する。なお、裏面側を摩擦撹拌接合する際にも、まず、接合線における端部を５０ｍｍ程度の長さで摩擦撹拌接合して仮接合し、その後、仮接合箇所を含む接合線を全長にわたって摩擦撹拌接合するのが好ましい。 As shown in FIG. 12, the joint portions 31 joined at the first stir joint portion 33 of the extruded panel 11 are friction stir welded from the back side using a friction stir tool Tf (second joining step). As a result, a second stirring joint portion 35 is formed at the joint portion 31 of the extrusion panel 11 . In addition, when performing friction stir welding on the back side, first, the ends of the joining line are temporarily joined by friction stirring welding to a length of about 50 mm, and then the entire length of the joining line, including the temporary joining part, is friction stir welded. Bonding is preferred.
　摩擦撹拌ツールＴｆによって第２撹拌接合部３５を形成したら、押圧治具４５及び押さえ治具４７，４９を取り外す。これにより、２枚の押出パネル１１が継手部３１で接合された構造部材１００が得られる。このようにして得られた構造部材１００では、摩擦撹拌接合によって生じる反りが表裏で相殺されるので、反りなどの変形がほとんどない状態とされる。 Once the second stirring joint portion 35 is formed using the friction stirring tool Tf, the pressing jig 45 and holding jigs 47 and 49 are removed. As a result, a structural member 100 in which two extruded panels 11 are joined at the joint portion 31 is obtained. In the structural member 100 obtained in this way, the warpage caused by friction stir welding is canceled out on the front and back sides, so that there is almost no deformation such as warpage.
　以上、説明したように、本構成例によれば、継手部３１において押出パネル１１同士が表裏でバランスよく接合された構造部材１００を製造できる。また、摩擦撹拌接合させる際に、押出パネル１１同士を互いに近接する方向へ押圧し、さらに、押出パネル１１をベース４１へ押し付けるので、接合箇所を境として生じる反りを抑えることができる。しかも、表裏から摩擦撹拌接合させることにより、接合箇所を境として生じる反りを相殺させることができる。これにより、反りが抑えられて押出パネル１１同士が接合された高品質な構造部材１００が得られる。 As described above, according to this configuration example, it is possible to manufacture the structural member 100 in which the extruded panels 11 are joined in a well-balanced manner on the front and back sides at the joint portion 31. In addition, when performing friction stir welding, the extruded panels 11 are pressed in a direction toward each other, and further, the extruded panels 11 are pressed against the base 41, so that warping that occurs at the joining location can be suppressed. Furthermore, by performing friction stir welding from the front and back sides, it is possible to offset the warpage that occurs at the joining location. As a result, a high-quality structural member 100 in which the extruded panels 11 are joined to each other with suppressed warpage can be obtained.
　なお、継手部３１に第２撹拌接合部３５を形成した後に、必要に応じて押出パネル１１に対して、バリ取りやトリミングなどの機械加工を行ってもよい。 Note that after forming the second stirred joint portion 35 in the joint portion 31, mechanical processing such as deburring or trimming may be performed on the extruded panel 11 as necessary.
　ここで、押出パネル１１の接合後における機械加工について説明する。
　図１３は、押出パネル１１の接合後の機械加工について説明するベース４１上に配置された押出パネル１１の側面図である。図１４は、機械加工が施された構造部材１００の斜視図である。
　図１３に示すように、第２撹拌接合部３５を形成した後に、押圧リブ４７，４９のうちの一部を取り外す。そして、例えば、マシニングセンタなどの工作機械において、摩擦撹拌ツールＴｆに代えてリーマ等の切削工具Ｔｃを付け替え、この切削工具Ｔｃによって構造部材１００に対して機械加工を行う。例えば、図１４に示すように、構造部材１００の片面側の一部を除去して凹状部分１１ａを形成する。 Here, the machining after joining the extruded panels 11 will be explained.
FIG. 13 is a side view of the extruded panel 11 placed on the base 41, illustrating machining of the extruded panel 11 after joining. FIG. 14 is a perspective view of a structural member 100 that has been machined.
As shown in FIG. 13, after forming the second stirring joint portion 35, some of the pressing ribs 47, 49 are removed. For example, in a machine tool such as a machining center, a cutting tool Tc such as a reamer is replaced with the friction stirring tool Tf, and the structural member 100 is machined using this cutting tool Tc. For example, as shown in FIG. 14, a portion of one side of the structural member 100 is removed to form a concave portion 11a.
　つまり、マシニングセンタ等の機械加工用の工作機械に摩擦撹拌ツールＴｆを装着させて摩擦撹拌接合を行った後に、リーマ等の切削工具Ｔｃを付け替えて機械加工を容易に行うことができる。しかも、ベース４１に拘束された構造部材１００に対して機械加工を行うことにより、構造部材１００の応力が解放されるので、摩擦撹拌接合によって生じる変形をより軽減させることができる。 That is, after performing friction stir welding by attaching the friction stir tool Tf to a machining machine tool such as a machining center, machining can be easily performed by replacing the cutting tool Tc such as a reamer. Moreover, by performing machining on the structural member 100 restrained by the base 41, stress in the structural member 100 is released, so that deformation caused by friction stir welding can be further reduced.
　なお、上記構成例では、２枚の押出パネル１１を接合させた構造部材１００及びその製造方法を説明したが、接合させる押出パネル１１の枚数は２枚に限らず、３枚以上であってもよい。 Note that in the above configuration example, the structural member 100 in which two extruded panels 11 are joined together and the manufacturing method thereof are described, but the number of extruded panels 11 to be joined is not limited to two, and may be three or more. good.
　このように、本発明は上記の実施形態に限定されるものではなく、実施形態の各構成を相互に組み合わせることや、明細書の記載、並びに周知の技術に基づいて、当業者が変更、応用することも本発明の予定するところであり、保護を求める範囲に含まれる。 As described above, the present invention is not limited to the embodiments described above, and those skilled in the art can combine the configurations of the embodiments with each other, modify and apply them based on the description of the specification and well-known techniques. It is also contemplated by the present invention to do so, and is within the scope for which protection is sought.
　以上の通り、本明細書には次の事項が開示されている。
（１）　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部が突き合わされて摩擦撹拌接合された継手部を有する構造部材であって、
　前記複数の押出パネルの前記継手部は、
　表面側に形成された第１撹拌接合部と、
　裏面側に形成された第２撹拌接合部と、
　を有し、
　前記継手部の総肉厚が１５ｍｍ以下であり、
　前記中空部を有する前記押出パネルにおける前記継手部側の縁部は、前記継手部における表裏に形成されたショルダー撹拌面の幅の半分と前記中空部同士の間のリブの厚さとの合計寸法以上の長さ寸法の中実部を有する、構造部材。
　この構造部材によれば、表面側の第１撹拌接合部と裏面側の第２撹拌接合部とを有する継手部において、複数の押出パネルが表裏でバランスよく安定した接合強度で接合された高品質な構造部材を提供できる。また、継手部は、総肉厚が１５ｍｍ以下であり、中空部を有する押出パネルにおける継手部側の縁部が、ショルダー撹拌面の幅の半分と中空部同士の間のリブの厚さとの合計寸法以上の長さ寸法の中実部を有する。したがって、継手部及びその周辺における十分な強度が確保された構造部材が得られる。 As mentioned above, the following matters are disclosed in this specification.
(1) A structural member having a joint portion in which the edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are butted and friction stir welded,
The joint portion of the plurality of extruded panels is
a first stirring joint formed on the surface side;
a second stirring joint formed on the back side;
has
The total thickness of the joint portion is 15 mm or less,
The edge on the joint part side of the extruded panel having the hollow part has a dimension equal to or larger than the sum of half the width of the shoulder stirring surfaces formed on the front and back sides of the joint part and the thickness of the ribs between the hollow parts. A structural member having a solid portion with a length dimension of.
According to this structural member, a plurality of extruded panels are joined with a well-balanced and stable bonding strength on the front and back sides in a joint having a first stirred joint on the front side and a second stirred joint on the back side. It is possible to provide structural members. In addition, the joint part has a total wall thickness of 15 mm or less, and the edge on the joint part side of the extruded panel having a hollow part is the sum of half the width of the shoulder stirring surface and the thickness of the rib between the hollow parts. It has a solid part with a length dimension greater than the length dimension. Therefore, a structural member with sufficient strength at the joint and its surroundings can be obtained.
（２）　前記第１撹拌接合部及び前記第２撹拌接合部は、それぞれ２ｍｍ以上５ｍｍ以下の深さを有する、（１）に記載の構造部材。
　この構造部材によれば、第１撹拌接合部及び第２撹拌接合部の深さが２ｍｍ以上５ｍｍ以下とされているので、継手部における接合強度を表裏で十分に確保できる。 (2) The structural member according to (1), wherein the first stirring joint portion and the second stirring joint portion each have a depth of 2 mm or more and 5 mm or less.
According to this structural member, the depth of the first stirred joint and the second stirred joint is set to 2 mm or more and 5 mm or less, so that sufficient joint strength can be ensured on the front and back sides of the joint.
（３）　前記リブは、前記中空部の厚さの半分以上の厚さを有する、（１）または（２）に記載の構造部材。
　この構造部材によれば、リブの厚さが中空部の厚さの半分以上とされているので、中空部を有する押出パネル自体の強度も十分に確保できる。 (3) The structural member according to (1) or (2), wherein the rib has a thickness that is at least half the thickness of the hollow portion.
According to this structural member, since the thickness of the rib is at least half the thickness of the hollow portion, sufficient strength of the extruded panel itself having the hollow portion can be ensured.
（４）　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部を突き合わせて摩擦撹拌接合する構造部材の製造方法であって、
　ベースに設けられた平滑面上に、互いに接合させる複数の前記押出パネルを配置させる第１配置工程と、
　前記複数の押出パネルを互いに近接する方向へ押圧して前記縁部を突き合わせる第１押圧工程と、
　平面部を有する押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第１押し付け工程と、
　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって表面側から摩擦撹拌接合させる第１接合工程と、
　表面側で接合された複数の前記押出パネルを反転させて前記ベースの前記平滑面上に配置させる第２配置工程と、
　前記複数の押出パネルを互いに近接する方向へ押圧する第２押圧工程と、
　前記押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第２押し付け工程と、
　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって裏面側から摩擦撹拌接合させる第２接合工程と、
　を含む、構造部材の製造方法。
　この構造部材の製造方法によれば、継手部において複数の押出パネルが表裏でバランスよく接合された構造部材を製造できる。また、摩擦撹拌接合させる際に、複数の押出パネルを互いに近接する方向へ押圧し、しかも、押出パネルをベースへ押し付けるので、接合箇所を境として生じる反りを抑えることができる。また、表裏から摩擦撹拌接合させることにより、接合箇所を境として生じる反りを相殺させることができる。これにより、反りが抑えられて複数の押出パネルが接合された高品質な構造部材が得られる。 (4) A method for manufacturing a structural member in which edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are butted and friction stir welded,
a first arrangement step of arranging a plurality of extruded panels to be joined to each other on a smooth surface provided on a base;
a first pressing step of pressing the plurality of extruded panels in a direction closer to each other to butt the edges;
a first pressing step of bringing the flat part of a pressing jig having a flat part into contact with the extrusion panel and pressing the extrusion panel against the base;
A first joining step of performing friction stir welding from the surface side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
a second placement step of inverting the plurality of extruded panels joined on the front side and placing them on the smooth surface of the base;
a second pressing step of pressing the plurality of extruded panels in a direction closer to each other;
a second pressing step of bringing the flat part of the holding jig into contact with the extrusion panel and pressing the extrusion panel against the base;
a second joining step of performing friction stir welding from the back side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
A method for manufacturing a structural member, including:
According to this method for manufacturing a structural member, it is possible to manufacture a structural member in which a plurality of extruded panels are joined on the front and back sides in a well-balanced manner at the joint portion. Further, when friction stir welding is performed, a plurality of extruded panels are pressed in a direction close to each other, and the extruded panels are pressed against the base, so that warping that occurs at the joining location can be suppressed. In addition, by performing friction stir welding from the front and back sides, it is possible to offset the warpage that occurs at the joining location. As a result, a high-quality structural member in which a plurality of extruded panels are joined together with suppressed warpage can be obtained.
（５）　前記第１押し付け工程及び前記第２押し付け工程において、前記押さえ治具を、前記押出パネルの前記中空部の両端のリブに掛け渡らせるように配置させる、（４）に記載の構造部材の製造方法。
　この構造部材の製造方法によれば、押さえ治具によって押出パネルをベースに押し付ける際の押出パネルの変形を抑えることができる。 (5) The structural member according to (4), wherein in the first pressing step and the second pressing step, the holding jig is arranged so as to span ribs at both ends of the hollow portion of the extrusion panel. manufacturing method.
According to this method of manufacturing a structural member, it is possible to suppress deformation of the extruded panel when the extruded panel is pressed against the base using the pressing jig.
（６）　前記第１押し付け工程及び前記第２押し付け工程において、前記押さえ治具によって前記押出パネルを前記摩擦撹拌ツールによる接合方向の全長にわたって前記ベースに押し付ける、（４）に記載の構造部材の製造方法。
　この構造部材の製造方法によれば、押さえ治具によって押出パネルを接合方向の全長にわたって押し付けるので、複数の押出パネルを全長にわたって良好に接合させることができる。 (6) Manufacturing the structural member according to (4), wherein in the first pressing step and the second pressing step, the extruded panel is pressed against the base over the entire length in the joining direction by the friction stir tool using the holding jig. Method.
According to this method of manufacturing a structural member, since the extruded panels are pressed over the entire length in the joining direction using the pressing jig, it is possible to join the plurality of extruded panels well over the entire length.
（７）　前記第２接合工程の後に機械加工を施す、（４）から（６）のいずれか１つに記載の構造部材の製造方法。
　この構造部材の製造方法によれば、マシニングセンタ等の機械加工用の工作機械に摩擦撹拌ツールを装着させて摩擦撹拌接合を行った後に、リーマ等の切削工具を付け替えて機械加工を容易に行うことができる。 (7) The method for manufacturing a structural member according to any one of (4) to (6), wherein machining is performed after the second joining step.
According to this method of manufacturing a structural member, after performing friction stir welding by attaching a friction stir tool to a machine tool for machining such as a machining center, machining can be easily performed by replacing a cutting tool such as a reamer. I can do it.
　なお、本出願は、２０２２年８月２４日出願の日本特許出願（特願２０２２－１３３６２０）に基づくものであり、その内容は本出願の中に参照として援用される。 Note that this application is based on a Japanese patent application (Japanese Patent Application No. 2022-133620) filed on August 24, 2022, the contents of which are incorporated as a reference in this application.
　１１　押出パネル
　１３　中空部
　１５　リブ
　１７　中実部
　３１　継手部
　３３　第１撹拌接合部
　３５　第２撹拌接合部
　３７　ショルダー撹拌面
　４１　ベース
　４３　平滑面
　４７，４９　押圧リブ（押さえ治具）
　４７ａ，４９ａ　平面部
　１００　構造部材
　Ｄ１　第１撹拌接合部の深さ
　Ｄ２　第２撹拌接合部の深さ
　Ｌ　中実部の長さ
　Ｔ２　中空部の厚さ
　Ｔ３　リブの厚さ
　Ｔ４　総肉厚
　Ｔｃ　切削工具
　Ｔｆ　摩擦撹拌ツール
　Ｗｔｆ　ショルダー撹拌面の幅 11 Extrusion panel 13 Hollow part 15 Rib 17 Solid part 31 Joint part 33 First stirring joint part 35 Second stirring joint part 37 Shoulder stirring surface 41 Base 43 Smooth surface 47, 49 Pressing rib (pressing jig)
47a, 49a Plane part 100 Structural member D1 Depth of first stirred joint D2 Depth of second stirred joint L Length of solid part T2 Thickness of hollow part T3 Thickness of rib T4 Total wall thickness Tc Cutting Tool Tf Friction stirring tool Wtf Shoulder stirring surface width

Claims (7)

  1. 　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部が突き合わされて摩擦撹拌接合された継手部を有する構造部材であって、
    　前記複数の押出パネルの前記継手部は、
    　表面側に形成された第１撹拌接合部と、
    　裏面側に形成された第２撹拌接合部と、
    　を有し、
    　前記継手部の総肉厚が１５ｍｍ以下であり、
    　前記中空部を有する前記押出パネルにおける前記継手部側の縁部は、前記継手部における表裏に形成されたショルダー撹拌面の幅の半分と前記中空部同士の間のリブの厚さとの合計寸法以上の長さ寸法の中実部を有する、
    　構造部材。     A structural member having a joint portion in which edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are butted and friction stir welded,
    The joint portion of the plurality of extruded panels is
    a first stirring joint formed on the surface side;
    a second stirring joint formed on the back side;
    has
    The total thickness of the joint portion is 15 mm or less,
    The edge on the joint part side of the extruded panel having the hollow part has a dimension equal to or larger than the sum of half the width of the shoulder stirring surfaces formed on the front and back sides of the joint part and the thickness of the ribs between the hollow parts. having a solid portion with a length dimension of
    Structural members.
  2. 　前記第１撹拌接合部及び前記第２撹拌接合部は、それぞれ２ｍｍ以上５ｍｍ以下の深さを有する、
    　請求項１に記載の構造部材。     The first stirring joint part and the second stirring joint part each have a depth of 2 mm or more and 5 mm or less,
    A structural member according to claim 1.
  3. 　前記リブは、前記中空部の厚さの半分以上の厚さを有する、
    　請求項１または請求項２に記載の構造部材。     The rib has a thickness that is more than half the thickness of the hollow part,
    A structural member according to claim 1 or claim 2.
  4. 　少なくとも一方が中空部を有する押出材からなる複数の押出パネルの縁部を突き合わせて摩擦撹拌接合する構造部材の製造方法であって、
    　ベースに設けられた平滑面上に、互いに接合させる複数の前記押出パネルを配置させる第１配置工程と、
    　前記複数の押出パネルを互いに近接する方向へ押圧して前記縁部を突き合わせる第１押圧工程と、
    　平面部を有する押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第１押し付け工程と、
    　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって表面側から摩擦撹拌接合させる第１接合工程と、
    　表面側で接合された複数の前記押出パネルを反転させて前記ベースの前記平滑面上に配置させる第２配置工程と、
    　前記複数の押出パネルを互いに近接する方向へ押圧する第２押圧工程と、
    　前記押さえ治具の前記平面部を前記押出パネルに当接させて前記押出パネルを前記ベースへ押し付ける第２押し付け工程と、
    　前記押出パネルの互いに突き合わされた縁部からなる接合線に沿って摩擦撹拌ツールによって裏面側から摩擦撹拌接合させる第２接合工程と、
    　を含む、
    　構造部材の製造方法。     A method for producing a structural member in which edges of a plurality of extruded panels, at least one of which is made of an extruded material having a hollow portion, are brought together and friction stir welded, the method comprising:
    a first arrangement step of arranging a plurality of extruded panels to be joined to each other on a smooth surface provided on a base;
    a first pressing step of pressing the plurality of extruded panels in a direction closer to each other to butt the edges;
    a first pressing step of bringing the flat part of a pressing jig having a flat part into contact with the extrusion panel and pressing the extrusion panel against the base;
    A first joining step of performing friction stir welding from the surface side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
    a second placement step of inverting the plurality of extruded panels joined on the front side and placing them on the smooth surface of the base;
    a second pressing step of pressing the plurality of extruded panels in a direction closer to each other;
    a second pressing step of bringing the flat part of the holding jig into contact with the extrusion panel and pressing the extrusion panel against the base;
    a second joining step of performing friction stir welding from the back side using a friction stir tool along a joining line consisting of the mutually abutted edges of the extruded panels;
    including,
    Method of manufacturing structural members.
  5. 　前記第１押し付け工程及び前記第２押し付け工程において、前記押さえ治具を、前記押出パネルの前記中空部の両端のリブに掛け渡らせるように配置させる、
    　請求項４に記載の構造部材の製造方法。     In the first pressing step and the second pressing step, the pressing jig is arranged so as to span ribs at both ends of the hollow portion of the extrusion panel.
    A method for manufacturing a structural member according to claim 4.
  6. 　前記第１押し付け工程及び前記第２押し付け工程において、前記押さえ治具によって前記押出パネルを前記摩擦撹拌ツールによる接合方向の全長にわたって前記ベースに押し付ける、
    　請求項４に記載の構造部材の製造方法。     In the first pressing step and the second pressing step, the pressing jig presses the extruded panel against the base over the entire length in the welding direction by the friction stir tool.
    A method for manufacturing a structural member according to claim 4.
  7. 　前記第２接合工程の後に機械加工を施す、
    請求項４から６のいずれか１項に記載の構造部材の製造方法。     performing machining after the second joining step;
    A method for manufacturing a structural member according to any one of claims 4 to 6.
PCT/JP2023/030390 2022-08-24 2023-08-23 Structure member and method for manufacturing structure member WO2024043286A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09309164A (en) * 1996-03-19 1997-12-02 Hitachi Ltd Panel structure, friction bonding method and panel
JP2000052457A (en) * 1998-08-07 2000-02-22 Sumitomo Light Metal Ind Ltd Bonding panel structure and panel
JP2000052065A (en) * 1998-08-03 2000-02-22 Sumitomo Light Metal Ind Ltd Extruding mold jointing method and extruding mold
JP2014028398A (en) * 2012-07-03 2014-02-13 Nippon Light Metal Co Ltd Method for manufacturing heat transfer plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09309164A (en) * 1996-03-19 1997-12-02 Hitachi Ltd Panel structure, friction bonding method and panel
JP2000052065A (en) * 1998-08-03 2000-02-22 Sumitomo Light Metal Ind Ltd Extruding mold jointing method and extruding mold
JP2000052457A (en) * 1998-08-07 2000-02-22 Sumitomo Light Metal Ind Ltd Bonding panel structure and panel
JP2014028398A (en) * 2012-07-03 2014-02-13 Nippon Light Metal Co Ltd Method for manufacturing heat transfer plate

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