WO2014010659A1 - Assembly for aluminum alloys of different types and aluminum door - Google Patents

Assembly for aluminum alloys of different types and aluminum door Download PDF

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Publication number
WO2014010659A1
WO2014010659A1 PCT/JP2013/068936 JP2013068936W WO2014010659A1 WO 2014010659 A1 WO2014010659 A1 WO 2014010659A1 JP 2013068936 W JP2013068936 W JP 2013068936W WO 2014010659 A1 WO2014010659 A1 WO 2014010659A1
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Prior art keywords
aluminum alloy
alloy material
based aluminum
door
bracket
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PCT/JP2013/068936
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French (fr)
Japanese (ja)
Inventor
謙二 清水
成信 大澤
二郎 吉原
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シロキ工業株式会社
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Publication of WO2014010659A1 publication Critical patent/WO2014010659A1/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
    • B23K9/00—Arc welding or cutting
    • B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
    • 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
    • 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
    • B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
    • B23K28/02—Combined welding or cutting procedures or apparatus
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/0401—Upper door structure
    • B60J5/0408—Upper door structure fastening window frame or parts of window frame to lower door structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/048—Doors arranged at the vehicle sides characterised by the material
    • B60J5/0483—Doors arranged at the vehicle sides characterised by the material lightweight metal, e.g. aluminum, magnesium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • 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
    • B23K2101/006—Vehicles
    • 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
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

Definitions

  • the present invention relates to a joined body of two different kinds of aluminum alloy materials and an aluminum door.
  • an Al—Mg-based aluminum alloy material (alloy material containing Mg in Al, JIS standard 5000-based aluminum alloy material (sometimes simply referred to as 5000-based)) is an Al—Mg—Si-based aluminum alloy material (Al , Mg and Si alloy material, JIS standard 6000 series aluminum alloy material (sometimes referred to simply as 6000 series)) has higher mechanical strength.
  • Joining of aluminum alloy material is performed by welding (spot, arc, laser, friction stir welding (friction stir welding, FSW (Friction Stir Welding)), rivet joining including SPR (self-piercing rivet), adhesion, etc. Among them, welding is often used selectively.
  • the aluminum alloy vehicle door includes, as large elements, a door frame, a bracket that is arc-welded to the door frame, and an inner panel that is welded to the bracket.
  • the bracket includes, for example, a lock bracket that couples the door to the body, a front bracket (mirror bracket) of the front door, or a rear bracket of the rear door.
  • the brackets need to be strong, so high strength Al- with an Mg content of about 4.5% is conventionally required.
  • the high-strength Al—Mg-based aluminum alloy material has a poor FSW compatibility with the Al—Mg—Si-based aluminum alloy material, and it is difficult to maintain the welding strength.
  • the bracket is made of high-strength Al-Mg-Si-based aluminum alloy material, there will be no problem with the FSW with the inner panel, but cracking will also occur when arc welding with the door frame of Al-Mg-Si-based aluminum alloy material. Is likely to occur.
  • the Al—Mg—Si based aluminum alloy material is relatively soft as compared with the Al—Mg based aluminum alloy material, and it is difficult to ensure the bracket strength.
  • an object of the present invention is to obtain a joined body of different kinds of aluminum alloy materials that is excellent in welding joint of an Al—Mg based aluminum alloy material and an Al—Mg—Si based aluminum alloy material.
  • the Al—Mg-based aluminum alloy material has a medium strength of Mg content of 2.2 to 2.8% in addition to a high-strength Al—Mg-based aluminum alloy material having an Mg content of about 4.5%.
  • Al-Mg-based aluminum alloy material exists, and this medium-strength Al-Mg-based aluminum alloy material has good compatibility with Al-Mg-Si-based aluminum alloy material, and is suitable for both arc welding and FSW welding. It has been made by finding that a well-balanced bonded body can be obtained.
  • the present invention comprises arc welding a first Al—Mg—Si based aluminum alloy material and an Al—Mg based aluminum alloy material, and the Al—Mg based aluminum alloy material and a second Al—Mg—Si based aluminum alloy material.
  • the Al—Mg based aluminum alloy material is composed of a medium strength Al—Mg based aluminum alloy material with an Mg content of 2.2 to 2.8%. It is said.
  • the present invention provides an Al—Mg—Si-based aluminum alloy material and an Al—Mg-based aluminum alloy material joined together by friction stir welding of the Al—Mg—Si-based aluminum alloy material. It is characterized by comprising 2.2 to 2.8% medium strength Al—Mg aluminum alloy material.
  • the present invention provides an Al—Mg—Si-based aluminum alloy material and an Al—Mg-based aluminum alloy material in an embodiment of a joined body of dissimilar aluminum alloy materials that are arc-bonded. It is characterized by comprising 2.2 to 2.8% medium strength Al—Mg aluminum alloy material.
  • the present invention is particularly suitable for application to an aluminum door of a vehicle. That is, in the aspect of the aluminum door, the present invention comprises an aluminum door door frame made of an Al—Mg—Si based aluminum alloy material and an Al—Mg based aluminum alloy material having an Mg content of 2.2 to 2.8%.
  • a bracket arc-welded to the door frame and an inner panel made of an Al—Mg—Si-based aluminum alloy material and friction stir welded to the bracket or an intermediate bracket connecting the inner panel and the bracket are provided.
  • an Al-Mg-Si based aluminum alloy material having an Mg content of 2.2 to 2.8% is used as the Al-Mg based aluminum alloy material. It can be joined, and is particularly suitable for application to aluminum doors.
  • FIG. 1 shows a skeleton of an aluminum front door 10 for a front seat of an automobile.
  • the aluminum front door 10 has an inner panel 12 and a door frame 14 formed in a frame shape on the upper portion of the inner panel 12, and is a window surrounded by an upper edge portion of the inner panel 12 and an inner edge portion of the door frame 14.
  • the door glass moves up and down in the opening 16.
  • the door frame 14 includes an upper sash 18 that forms an upper edge of the door, and an upright column sash 20 that extends upward from the rear portion of the inner panel 12, and the rear end portion of the upper sash 18 and the upper end of the upright column sash 20.
  • the parts are joined at the door corner.
  • the inner panel 12 is combined with an outer panel on the outside of the vehicle to form a door panel.
  • the lower front portion of the upper sash 18 is fixed to the inner panel via a mirror bracket 31, and the lower portion of the upright pillar sash 20 is fixed to the inner panel via a lock bracket 32.
  • a beltline reinforcement 33 extending in the vehicle front-rear direction is fixed to the mirror bracket 31 and the lock bracket 32. In FIG. 1, the mirror bracket 31 and the lock bracket 32 are hatched.
  • the inner panel 12 is a first member made of an Al—Mg—Si-based aluminum alloy material (JIS standard 6000-based aluminum alloy material), and the door frame 14 (upper sash 18 and vertical pillar sash 20) is also made of Al—Mg.
  • the mirror bracket 31 and the lock bracket 32 are made of medium-strength Al—Mg-based aluminum alloy material (JIS standard 5000-based aluminum alloy material) having an Mg content of 2.2 to 2.8%.
  • the door frame 14 (the upper sash 18) and the mirror bracket 31, and the door frame 14 (the upright sash 20) and the lock bracket 32 are arc welded at the welding points W1, respectively.
  • the mirror bracket 31, the lock bracket 32, and the inner panel 12 are welded. Is FSW at a plurality of junction points W2.
  • arc welding is a well-known joining method in which two members A and B to be joined are brought into contact with each other and the gap C is filled with a molten metal by arc discharge.
  • the FSW superimposes the two members A and B to be joined, and presses the cylindrical tool C having a protrusion at the tip with a strong force while rotating the protrusion 2 to rotate the protrusion.
  • the door frame 14 (the upper sash 18) and the mirror bracket 31 and the door frame 14 (the upright sash 20) and the lock bracket 32 are arc welded, respectively, and the mirror bracket 31, the lock bracket 32, and the inner panel 12 are arc-welded.
  • the inner panel 12 and the door frame 14 (upper sash 18 and upright sash 20) are made of an Al—Mg—Si based aluminum alloy material (JIS standard 6000 based aluminum alloy material).
  • the mirror bracket 31 and the lock bracket 32 are made of a medium-strength Al—Mg-based aluminum alloy material (JIS standard 5000-based aluminum alloy material) having an Mg content of 2.2 to 2.8%.
  • the medium-strength Al—Mg-based aluminum alloy material having an Mg content of 2.2 to 2.8% at least JIS standard 5052 material, 5021 material, and 5652 material can be used.
  • the Al—Mg—Si-based aluminum alloy material is known as a JIS standard 6000-based aluminum alloy material.
  • a JIS standard 6016 material, a 6N01 material, or an equivalent material can be used.
  • the present invention is applied to an aluminum door, but it can be applied to an aluminum alloy bonding material in general.
  • group aluminum alloy material can be favorably joined, For example, it is widely applicable to joining of the aluminum door of a vehicle.
  • Aluminum front door 12
  • Inner panel 12 (first Al—Mg—Si based aluminum alloy material)
  • Door frame (second Al-Mg-Si based aluminum alloy material)
  • Upper sash (second Al-Mg-Si based aluminum alloy material)
  • Vertical pillar sash 20 (second Al—Mg—Si based aluminum alloy material)
  • Mirror bracket (bracket, medium strength Al-Mg aluminum alloy material)
  • Lock bracket (bracket, medium strength Al-Mg aluminum alloy material)

Abstract

An assembly for aluminum alloys of different types obtained by arc-welding a first Al-Mg-Si aluminum alloy and an Al-Mg aluminum alloy, and friction-stir joining the Al-Mg aluminum alloy with a second Al-Mg-Si aluminum alloy, wherein welding strength is increased. An assembly for aluminum alloys of different types composed of an intermediate-strength Al-Mg aluminum alloy in which the Mg content in the Al-Mg aluminum alloy is 2.2 to 2.8%.

Description

異種アルミ合金材の接合体及びアルミドアDissimilar aluminum alloy joints and aluminum doors
　本発明は、２種の異種アルミ合金材の接合体及びアルミドアに関する。 The present invention relates to a joined body of two different kinds of aluminum alloy materials and an aluminum door.
　アルミ合金材には、主にＭｇなどの成分含有量の違いによる異種アルミ材が知られている。例えば、Ａｌ-Ｍｇ系アルミ合金材（ＡｌにＭｇを含む合金材、ＪＩＳ規格５０００系アルミ合金材（単に５０００系と呼ぶことがある））は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材（Ａｌに、Ｍｇ及びＳｉを含む合金材、ＪＩＳ規格６０００系アルミ合金材（単に６０００系と呼ぶことがある））より機械的強度が高い。アルミ合金材の接合は、溶接（スポット、アーク、レーザ、摩擦撹拌接合（摩擦撹拌溶接、ＦＳＷ（Friction Stir Welding））、ＳＰＲ（セルフピアスリベット）を含むリベット接合、接着などで行われており、中でも溶接は選択使用されることが多い。 As the aluminum alloy material, a dissimilar aluminum material mainly due to a difference in content of components such as Mg is known. For example, an Al—Mg-based aluminum alloy material (alloy material containing Mg in Al, JIS standard 5000-based aluminum alloy material (sometimes simply referred to as 5000-based)) is an Al—Mg—Si-based aluminum alloy material (Al , Mg and Si alloy material, JIS standard 6000 series aluminum alloy material (sometimes referred to simply as 6000 series)) has higher mechanical strength. Joining of aluminum alloy material is performed by welding (spot, arc, laser, friction stir welding (friction stir welding, FSW (Friction Stir Welding)), rivet joining including SPR (self-piercing rivet), adhesion, etc. Among them, welding is often used selectively.
　アルミ合金製の車両用ドアは、大きい要素として、ドアフレーム、該ドアフレームにアーク溶接されるブラケット及び該ブラケットに溶接されるインナパネルを備えている。ブラケットには、例えば、ドアをボディに結合するロックブラケットと、フロントドアのフロントブラケット（ミラーブラケット）あるいはリヤドアのリヤブラケットがある。これらのドアフレームとインナパネルにＡｌ-Ｍｇ-Ｓｉ系アルミ合金材が選択使用される場合、ブラケットには、強度を必要とすることから従来、Ｍｇ含有量４．５％程度の高強度Ａｌ-Ｍｇ系アルミ合金材が採用され、この高強度Ａｌ-Ｍｇ系アルミ合金材ブラケットを、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材のドアフレームにアーク溶接し、同じくＡｌ-Ｍｇ-Ｓｉ系アルミ合金材のインナパネルにＦＳＷをする試みがある。 The aluminum alloy vehicle door includes, as large elements, a door frame, a bracket that is arc-welded to the door frame, and an inner panel that is welded to the bracket. The bracket includes, for example, a lock bracket that couples the door to the body, a front bracket (mirror bracket) of the front door, or a rear bracket of the rear door. When Al-Mg-Si-based aluminum alloy materials are selected and used for these door frames and inner panels, the brackets need to be strong, so high strength Al- with an Mg content of about 4.5% is conventionally required. Mg-based aluminum alloy material is used, and this high-strength Al-Mg-based aluminum alloy material bracket is arc welded to the door frame of Al-Mg-Si-based aluminum alloy material, and the same Al-Mg-Si-based aluminum alloy material is used. There is an attempt to FSW the inner panel.
特開２００２-２０６１３０号公報Japanese Patent Laid-Open No. 2002-206130
　ところが、本発明者らによると、高強度Ａｌ-Ｍｇ系アルミ合金材は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材とのＦＳＷの相性が悪く、溶接強度の維持が困難であり、アルミドアのブラケットに用いた場合、ドアフレームとのアーク溶接強度の確保は比較的容易であるものの、特にロックブラケットではインナパネルとの接続の維持が困難である。また、ブラケットを高強度Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材から構成すると、同じくインナパネルとのＦＳＷには問題がないが、同じくＡｌ-Ｍｇ-Ｓｉ系アルミ合金材のドアフレームとアーク溶接すると割れが発生しやすい。また、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材はＡｌ-Ｍｇ系アルミ合金材に比して比較的軟質であり、ブラケット強度が確保しにくい。　 However, according to the present inventors, the high-strength Al—Mg-based aluminum alloy material has a poor FSW compatibility with the Al—Mg—Si-based aluminum alloy material, and it is difficult to maintain the welding strength. When used, it is relatively easy to ensure arc welding strength with the door frame, but it is difficult to maintain the connection with the inner panel, particularly with the lock bracket. Also, if the bracket is made of high-strength Al-Mg-Si-based aluminum alloy material, there will be no problem with the FSW with the inner panel, but cracking will also occur when arc welding with the door frame of Al-Mg-Si-based aluminum alloy material. Is likely to occur. Further, the Al—Mg—Si based aluminum alloy material is relatively soft as compared with the Al—Mg based aluminum alloy material, and it is difficult to ensure the bracket strength. *
　従って本発明は、Ａｌ-Ｍｇ系アルミ合金材とＡｌ-Ｍｇ-Ｓｉ系アルミ合金材の溶接接合に優れた異種アルミ合金材の接合体を得ることを目的とする。 Therefore, an object of the present invention is to obtain a joined body of different kinds of aluminum alloy materials that is excellent in welding joint of an Al—Mg based aluminum alloy material and an Al—Mg—Si based aluminum alloy material.
　本発明は、Ａｌ-Ｍｇ系アルミ合金材には、Ｍｇ含有量４．５％程度の高強度Ａｌ-Ｍｇ系アルミ合金材の他に、Ｍｇ含有量２．２～２．８％の中強度Ａｌ-Ｍｇ系アルミ合金材が存在すること、及びこの中強度Ａｌ-Ｍｇ系アルミ合金材は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材との溶接の相性がよく、アーク溶接とＦＳＷ溶接の双方にバランスがよい接合体が得られることを見出してなされたものである。 In the present invention, the Al—Mg-based aluminum alloy material has a medium strength of Mg content of 2.2 to 2.8% in addition to a high-strength Al—Mg-based aluminum alloy material having an Mg content of about 4.5%. Al-Mg-based aluminum alloy material exists, and this medium-strength Al-Mg-based aluminum alloy material has good compatibility with Al-Mg-Si-based aluminum alloy material, and is suitable for both arc welding and FSW welding. It has been made by finding that a well-balanced bonded body can be obtained.
　本発明は、第１のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材をアーク溶接し、該Ａｌ-Ｍｇ系アルミ合金材と第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材を摩擦撹拌接合する異種アルミ合金材の接合体において、上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％の中強度Ａｌ-Ｍｇ系アルミ合金材から構成したことを特徴としている。 The present invention comprises arc welding a first Al—Mg—Si based aluminum alloy material and an Al—Mg based aluminum alloy material, and the Al—Mg based aluminum alloy material and a second Al—Mg—Si based aluminum alloy material. In the joined body of dissimilar aluminum alloy materials that are friction stir welded, the Al—Mg based aluminum alloy material is composed of a medium strength Al—Mg based aluminum alloy material with an Mg content of 2.2 to 2.8%. It is said.
　また本発明は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材を摩擦撹拌接合する異種アルミ合金材の接合体の態様では、上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％の中強度Ａｌ-Ｍｇ系アルミ合金材から構成したことを特徴としている。 Further, the present invention provides an Al—Mg—Si-based aluminum alloy material and an Al—Mg-based aluminum alloy material joined together by friction stir welding of the Al—Mg—Si-based aluminum alloy material. It is characterized by comprising 2.2 to 2.8% medium strength Al—Mg aluminum alloy material.
　さらに本発明は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材をアーク接合する異種アルミ合金材の接合体の態様においては、上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％の中強度Ａｌ-Ｍｇ系アルミ合金材から構成したことを特徴としている。 Furthermore, the present invention provides an Al—Mg—Si-based aluminum alloy material and an Al—Mg-based aluminum alloy material in an embodiment of a joined body of dissimilar aluminum alloy materials that are arc-bonded. It is characterized by comprising 2.2 to 2.8% medium strength Al—Mg aluminum alloy material.
　本発明は特に車両のアルミドアに適用して好適である。すなわち、本発明は、アルミドアの態様では、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材からなるアルミドアのドアフレームと、Ｍｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材からなり上記ドアフレームにアーク溶接されるブラケットと、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材からなり上記ブラケットに摩擦撹拌接合されるインナパネルまたはインナパネルとブラケットを繋ぐ中間ブラケットとを備えている。 The present invention is particularly suitable for application to an aluminum door of a vehicle. That is, in the aspect of the aluminum door, the present invention comprises an aluminum door door frame made of an Al—Mg—Si based aluminum alloy material and an Al—Mg based aluminum alloy material having an Mg content of 2.2 to 2.8%. A bracket arc-welded to the door frame and an inner panel made of an Al—Mg—Si-based aluminum alloy material and friction stir welded to the bracket or an intermediate bracket connecting the inner panel and the bracket are provided.
　本発明によれば、Ａｌ-Ｍｇ系アルミ合金材としてＭｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材を用いたので、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材を確実に接合することができ、特にアルミドアに適用して好適である。 According to the present invention, an Al-Mg-Si based aluminum alloy material having an Mg content of 2.2 to 2.8% is used as the Al-Mg based aluminum alloy material. It can be joined, and is particularly suitable for application to aluminum doors.
本発明によるアルミドアの一実施形態を示す側面図である。It is a side view which shows one Embodiment of the aluminum door by this invention. 図１のアルミドアのアーク溶接部分の概念図である。It is a conceptual diagram of the arc welding part of the aluminum door of FIG. 図１のアルミドアの摩擦撹拌接合部分の概念図である。It is a conceptual diagram of the friction stir welding part of the aluminum door of FIG.
　図１は自動車の前部座席用のアルミフロントドア１０の骨格を示している。アルミフロントドア１０は、インナパネル１２と、インナパネル１２の上部に枠状に形成されたドアフレーム１４とを有し、インナパネル１２の上縁部とドアフレーム１４の内縁部とで囲まれる窓開口１６内にドアガラスが昇降する。ドアフレーム１４は、ドア上縁部を形成するアッパサッシュ１８と、インナパネル１２の後部から上方へ延設された立柱サッシュ２０を備えており、アッパサッシュ１８の後端部と立柱サッシュ２０の上端部がドアコーナー部で接合される。インナパネル１２は車外側のアウタパネルと組み合わせてドアパネルを構成し、アッパサッシュ１８の前方下部はミラーブラケット３１を介してインナパネルに固定され、立柱サッシュ２０の下部はロックブラケット３２を介してインナパネルに固定される。ミラーブラケット３１とロックブラケット３２に対して、車両前後方向に延びるベルトラインリンフォース３３が固定される。図１では、ミラーブラケット３１とロックブラケット３２にハッチングを付した。 FIG. 1 shows a skeleton of an aluminum front door 10 for a front seat of an automobile. The aluminum front door 10 has an inner panel 12 and a door frame 14 formed in a frame shape on the upper portion of the inner panel 12, and is a window surrounded by an upper edge portion of the inner panel 12 and an inner edge portion of the door frame 14. The door glass moves up and down in the opening 16. The door frame 14 includes an upper sash 18 that forms an upper edge of the door, and an upright column sash 20 that extends upward from the rear portion of the inner panel 12, and the rear end portion of the upper sash 18 and the upper end of the upright column sash 20. The parts are joined at the door corner. The inner panel 12 is combined with an outer panel on the outside of the vehicle to form a door panel. The lower front portion of the upper sash 18 is fixed to the inner panel via a mirror bracket 31, and the lower portion of the upright pillar sash 20 is fixed to the inner panel via a lock bracket 32. Fixed. A beltline reinforcement 33 extending in the vehicle front-rear direction is fixed to the mirror bracket 31 and the lock bracket 32. In FIG. 1, the mirror bracket 31 and the lock bracket 32 are hatched.
　インナパネル１２は、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材（ＪＩＳ規格６０００系アルミ合金材）からなる第１の部材であり、ドアフレーム１４（アッパサッシュ１８と立柱サッシュ２０）は、同じくＡｌ-Ｍｇ-Ｓｉ系アルミ合金材（ＪＩＳ規格６０００系アルミ合金材）からなる第２の部材である。これに対し、ミラーブラケット３１とロックブラケット３２は、Ｍｇ含有量２．２～２．８％の程度の中強度Ａｌ-Ｍｇ系アルミ合金材（ＪＩＳ規格５０００系アルミ合金材）からなっている。ドアフレーム１４（のアッパサッシュ１８）とミラーブラケット３１、及びドアフレーム１４（の立柱サッシュ２０）とロックブラケット３２は、溶接箇所Ｗ１においてそれぞれアーク溶接され、ミラーブラケット３１、ロックブラケット３２とインナパネル１２とは、複数の接合ポイントＷ２にてＦＳＷされる。 The inner panel 12 is a first member made of an Al—Mg—Si-based aluminum alloy material (JIS standard 6000-based aluminum alloy material), and the door frame 14 (upper sash 18 and vertical pillar sash 20) is also made of Al—Mg. A second member made of a Si-based aluminum alloy material (JIS standard 6000-based aluminum alloy material). On the other hand, the mirror bracket 31 and the lock bracket 32 are made of medium-strength Al—Mg-based aluminum alloy material (JIS standard 5000-based aluminum alloy material) having an Mg content of 2.2 to 2.8%. The door frame 14 (the upper sash 18) and the mirror bracket 31, and the door frame 14 (the upright sash 20) and the lock bracket 32 are arc welded at the welding points W1, respectively. The mirror bracket 31, the lock bracket 32, and the inner panel 12 are welded. Is FSW at a plurality of junction points W2.
　アーク溶接は、図２に概念的に示すように、接合する２部材Ａ、Ｂを突き合わせ、その空隙Ｃをアーク放電による熔融金属で埋めることで接合する周知の接合方法である。 As shown conceptually in FIG. 2, arc welding is a well-known joining method in which two members A and B to be joined are brought into contact with each other and the gap C is filled with a molten metal by arc discharge.
　また、ＦＳＷは、図３に概念的に示すように、接合する２部材Ａ、Ｂを重ね合わせ、先端に突起のある円筒状の工具Ｃを回転させながら強い力で押し付けることで突起部を２部材Ａ、Ｂの接合部に貫入させ、これによって摩擦熱を発生させて母材を軟化させるとともに、工具Ｃの回転力によって接合部周辺を塑性流動させて練り混ぜることで接合する周知の接合方法である。 Further, as conceptually shown in FIG. 3, the FSW superimposes the two members A and B to be joined, and presses the cylindrical tool C having a protrusion at the tip with a strong force while rotating the protrusion 2 to rotate the protrusion. A well-known joining method for joining the members A and B by joining them by generating frictional heat to soften the base material and plastically flowing around the joints by the rotational force of the tool C and kneading. It is.
　本実施形態は、ドアフレーム１４（のアッパサッシュ１８）とミラーブラケット３１、及びドアフレーム１４（の立柱サッシュ２０）とロックブラケット３２をそれぞれアーク溶接し、ミラーブラケット３１、ロックブラケット３２とインナパネル１２をＦＳＷにて接合するという接合体において、インナパネル１２とドアフレーム１４（アッパサッシュ１８と立柱サッシュ２０）を、Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材（ＪＩＳ規格６０００系アルミ合金材）から構成し、ミラーブラケット３１とロックブラケット３２を、Ｍｇ含有量２．２～２．８％の程度の中強度Ａｌ-Ｍｇ系アルミ合金材（ＪＩＳ規格５０００系アルミ合金材）から構成している。具体的に、Ｍｇ含有量２．２～２．８％の程度の中強度Ａｌ-Ｍｇ系アルミ合金材としては、少なくとも、ＪＩＳ規格５０５２材、５０２１材、５６５２材を用いることができる。またＡｌ-Ｍｇ-Ｓｉ系アルミ合金材は、ＪＩＳ規格６０００系アルミ合金材として知られており、具体的には、ＪＩＳ規格６０１６材、６Ｎ０１材、またはそれ相当のものを用いることができる。 In this embodiment, the door frame 14 (the upper sash 18) and the mirror bracket 31 and the door frame 14 (the upright sash 20) and the lock bracket 32 are arc welded, respectively, and the mirror bracket 31, the lock bracket 32, and the inner panel 12 are arc-welded. The inner panel 12 and the door frame 14 (upper sash 18 and upright sash 20) are made of an Al—Mg—Si based aluminum alloy material (JIS standard 6000 based aluminum alloy material). The mirror bracket 31 and the lock bracket 32 are made of a medium-strength Al—Mg-based aluminum alloy material (JIS standard 5000-based aluminum alloy material) having an Mg content of 2.2 to 2.8%. Specifically, as the medium-strength Al—Mg-based aluminum alloy material having an Mg content of 2.2 to 2.8%, at least JIS standard 5052 material, 5021 material, and 5652 material can be used. The Al—Mg—Si-based aluminum alloy material is known as a JIS standard 6000-based aluminum alloy material. Specifically, a JIS standard 6016 material, a 6N01 material, or an equivalent material can be used.
　以上の実施形態は、アルミドアに本発明を適用したものであるが、アルミ合金接合材一般に適用することができる。 In the above embodiment, the present invention is applied to an aluminum door, but it can be applied to an aluminum alloy bonding material in general.
本発明によれば、Ａｌ-Ｍｇ系アルミ合金材とＡｌ-Ｍｇ-Ｓｉ系アルミ合金材の異種アルミ合金材を良好に接合することができ、例えば車両のアルミドアの接合に広く適用可能である。 ADVANTAGE OF THE INVENTION According to this invention, the dissimilar aluminum alloy material of an Al-Mg type | system | group aluminum alloy material and an Al-Mg-Si type | system | group aluminum alloy material can be favorably joined, For example, it is widely applicable to joining of the aluminum door of a vehicle.
１０　アルミフロントドア
１２　インナパネル１２（第１のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材）
１４　ドアフレーム（第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材）
１８　アッパサッシュ（第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材）
２０　立柱サッシュ２０（第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材）
３１　ミラーブラケット（ブラケット、中強度Ａｌ-Ｍｇ系アルミ合金材）
３２　ロックブラケット（ブラケット、中強度Ａｌ-Ｍｇ系アルミ合金材） 10 Aluminum front door 12 Inner panel 12 (first Al—Mg—Si based aluminum alloy material)
14 Door frame (second Al-Mg-Si based aluminum alloy material)
18 Upper sash (second Al-Mg-Si based aluminum alloy material)
20 Vertical pillar sash 20 (second Al—Mg—Si based aluminum alloy material)
31 Mirror bracket (bracket, medium strength Al-Mg aluminum alloy material)
32 Lock bracket (bracket, medium strength Al-Mg aluminum alloy material)

Claims (4)

  1. 第１のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材がアーク溶接され、該Ａｌ-Ｍｇ系アルミ合金材と第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材が摩擦撹拌接合されている異種アルミ合金材の接合体において、
    　上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材から構成したことを特徴とする異種アルミ合金材の接合体。     The first Al—Mg—Si based aluminum alloy material and the Al—Mg based aluminum alloy material are arc welded, and the Al—Mg based aluminum alloy material and the second Al—Mg—Si based aluminum alloy material are friction stir welded. In the joined body of dissimilar aluminum alloy material,
    A joined body of dissimilar aluminum alloy materials, wherein the Al—Mg based aluminum alloy material is composed of an Al—Mg based aluminum alloy material having an Mg content of 2.2 to 2.8%.
  2. Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材が摩擦撹拌接合されている異種アルミ合金材の接合体において、
    　上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材から構成したことを特徴とする異種アルミ合金材の接合体。     In a joined body of dissimilar aluminum alloy materials in which an Al-Mg-Si based aluminum alloy material and an Al-Mg based aluminum alloy material are friction stir welded,
    A joined body of dissimilar aluminum alloy materials, wherein the Al—Mg based aluminum alloy material is composed of an Al—Mg based aluminum alloy material having an Mg content of 2.2 to 2.8%.
  3. Ａｌ-Ｍｇ-Ｓｉ系アルミ合金材とＡｌ-Ｍｇ系アルミ合金材がアーク接合されている異種アルミ合金材の接合体において、
    　上記Ａｌ-Ｍｇ系アルミ合金材をＭｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材から構成したことを特徴とする異種アルミ合金材の接合体。     In a joined body of dissimilar aluminum alloy materials in which an Al—Mg—Si based aluminum alloy material and an Al—Mg based aluminum alloy material are arc joined,
    A joined body of dissimilar aluminum alloy materials, wherein the Al—Mg based aluminum alloy material is composed of an Al—Mg based aluminum alloy material having an Mg content of 2.2 to 2.8%.
  4. 第１のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材からなるアルミドアのドアフレームと、
    Ｍｇ含有量２．２～２．８％のＡｌ-Ｍｇ系アルミ合金材からなり上記ドアフレームにアーク溶接されるブラケットと、
    第２のＡｌ-Ｍｇ-Ｓｉ系アルミ合金材からなり上記ブラケットに摩擦撹拌接合されるインナパネルまたはインナパネルと上記ブラケットを繋ぐ中間ブラケットと、
    を備えることを特徴とするアルミドア。     A door frame of an aluminum door made of a first Al-Mg-Si-based aluminum alloy material;
    A bracket made of an Al—Mg-based aluminum alloy material having an Mg content of 2.2 to 2.8% and arc-welded to the door frame;
    An inner panel made of a second Al—Mg—Si based aluminum alloy material and friction stir welded to the bracket, or an intermediate bracket connecting the bracket to the inner panel,
    An aluminum door characterized by comprising:
PCT/JP2013/068936 2012-07-13 2013-07-11 Assembly for aluminum alloys of different types and aluminum door WO2014010659A1 (en)

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