JP2005193254A - Friction stir joining method - Google Patents

Friction stir joining method Download PDF

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JP2005193254A
JP2005193254A JP2004000047A JP2004000047A JP2005193254A JP 2005193254 A JP2005193254 A JP 2005193254A JP 2004000047 A JP2004000047 A JP 2004000047A JP 2004000047 A JP2004000047 A JP 2004000047A JP 2005193254 A JP2005193254 A JP 2005193254A
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joining
friction stir
joined
joining member
stir welding
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JP4311206B2 (en
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Koji Ezaki
公二 江崎
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Hitachi Plant Technologies Ltd
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Hitachi Industries Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To make a joined part flat and prevent it from having welding defects, even when friction stir joining is conducted on a part with a space provided for fitting. <P>SOLUTION: A projecting part and a recessed part, which are to be mutually fitted, are provided in two joint members 10, 20 respectively. Joining of the joint members is conducted by rotating a rotary tool 30 while pressing the tool to a cut line part, where the projecting part and the recessed part are fitted, to plastically fluidize the members 10, 20. The joint member 10 used in the joining has projecting parts 14, 15 to be joined, which become thicker toward their end face parts so that the outer face sides of the parts 14, 15 become wider toward the ends. These projecting parts are fitted to notched parts 24, 25 to be joined of the joint member 20, and the cut line part fitted together is subjected to friction stir joining using the rotary tool 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、金属部材の接合したい箇所に工具を押圧しつつ回転させて発生する摩擦熱により接合したい箇所の金属部材を塑性流動させ、金属部材の固相接合を行う摩擦攪拌接合方法に関する。   The present invention relates to a friction stir welding method in which a metal member at a location to be joined is plastically flowed by frictional heat generated by rotating the tool while pressing a tool at a location to which the metal member is to be joined, and solid phase joining of the metal members is performed.

固相接合方法の一つである摩擦攪拌接合法は、接合したい金属部材（以後、接合部材という）より硬くて大きな径を持つ円柱形状の回転子の回転軸線上に小さな径のピンが突出している形態をなす工具（以下、回転工具という）を２つの接合部材の接合したい箇所（以下、接合部という）に押圧しつつ回転させて、回転工具と接合部材との間に発生する摩擦熱により接合部材を塑性流動させ、ピンが接合部に埋まった形になったら、回転工具を回転させながら接合部に沿って移動させることによって、接合部材を固相接合するものである。これは下記の特許公報に示されている。   Friction stir welding, which is one of the solid-phase welding methods, has a pin with a small diameter protruding on the rotation axis of a cylindrical rotor that is harder and larger in diameter than the metal member to be joined (hereinafter referred to as a joining member). A tool (hereinafter referred to as a rotating tool) that is in a form of being pressed while being pressed against a location (hereinafter referred to as a bonded portion) where two joining members are to be joined, and caused by frictional heat generated between the rotating tool and the joining member. When the joining member is plastically flowed and the pins are buried in the joining portion, the joining member is solid-phase joined by moving along the joining portion while rotating the rotary tool. This is shown in the following patent publication.

特表平７−５０５０９０号公報JP 7-505090 Gazette

２つの接合部材の接合部に互い違いとなる凹部と凸部を設け、凹部と凸部を嵌め合わせた切れ目部分を摩擦攪拌接合法で接合しようとする場合、凹部と凸部の嵌め合わせを円滑にするために、重なり方向に若干の隙間が必要である。   If the joints of two joint members are provided with concave and convex portions that are staggered, and the cut portion where the concave and convex portions are fitted together is to be joined by the friction stir welding method, the concave and convex portions can be smoothly fitted together. In order to achieve this, a slight gap is required in the overlapping direction.

この隙間は、摩擦攪拌接合をすると、以下に述べる悪影響を及ぼす。   This gap has the following adverse effects when friction stir welding is performed.

接合先行（面）側では回転工具の押圧力により接合部材の一方が押圧方向に移動して他方との隙間が無くなり、反対側の隙間が拡がる。   On the joining preceding (surface) side, one of the joining members is moved in the pressing direction by the pressing force of the rotary tool, the gap with the other is eliminated, and the gap on the opposite side is expanded.

両接合部材の外形を揃えてあると、移動した分だけ段差を生じてしまう。または接合先行（面）側の反対側では他方の接合部材が一方の接合部材から浮いた形となっているので、回転工具の押圧力で他方の接合部材はたわむことになる。そのたわみにより面変形が生じ、接合部に平坦性が求められる場合には、機械加工などにより平滑に仕上げる作業が必要となる。   If the outer shapes of both the joining members are aligned, a level difference is generated by the amount of movement. Alternatively, since the other joining member floats from the one joining member on the side opposite to the joining preceding (surface) side, the other joining member bends due to the pressing force of the rotary tool. When surface deformation occurs due to the deflection and flatness is required for the joint portion, an operation for smooth finishing by machining or the like is required.

そこで、治具などを用いて両接合部材を保持し、外形が揃うようにして摩擦攪拌接合を行うと、回転工具の回転により生じた塑性流動状態の金属が隙間に流入する。そのために接合部において金属の不足が生じ、空洞状の接合欠陥を発生することがある。   Therefore, when both the joining members are held using a jig or the like and the friction stir welding is performed so that the outer shapes are aligned, the metal in the plastic flow state generated by the rotation of the rotary tool flows into the gap. For this reason, a shortage of metal occurs in the joint, and a hollow joint defect may occur.

それゆえ本発明の目的は、嵌め合わせのための隙間を設けて接合をしても、接合部は平坦で接合欠陥が発生しない摩擦攪拌接合法を提供することにある。   Therefore, an object of the present invention is to provide a friction stir welding method in which even when a gap is provided for fitting and bonding is performed, the bonded portion is flat and no bonding defect occurs.

上記目的を達成する本発明摩擦攪拌接合法の特徴とするところは、一方の接合部材は接合される凸部の厚さが端面部に向かうほど厚くなり外面側が末広がり状となったものを用い、この凸部を他方の接合部材における接合される凹部と嵌め合わせ、嵌め合わせた切れ目部分を回転工具により摩擦攪拌接合を行うことにある。   The feature of the friction stir welding method of the present invention that achieves the above object is that one of the joining members is thicker as the convex part to be joined is directed toward the end face part, and the outer surface side is divergent, This projecting part is to be fitted with a recessed part to be joined in the other joining member, and the fitted cut portion is to be subjected to friction stir welding with a rotary tool.

本発明によれば、接合時に回転工具の押圧力により、一方の接合部材は接合される凸部における厚さが厚くなり始める部分で他方の接合部材側に折れ曲がる形となって、両接合部材の重なり方向に存在している隙間を解消する。   According to the present invention, one joining member bends to the other joining member side at the portion where the thickness of the convex part to be joined begins to increase due to the pressing force of the rotary tool during joining, and both joining members Eliminate gaps that exist in the direction of overlap.

一方の接合部材は折れ曲がり撓まないので外面は平坦であり、両接合部材が接触したときに外形が揃うようにしておくことで、段差は発生せず接合部の平坦性が得られ、接合後に余分な加工作業を必要としない。   One joint member does not bend and bend, so the outer surface is flat, and when the two contact members are in contact with each other, the outer shape is aligned so that there is no step and the flatness of the joint is obtained. No extra processing work is required.

両接合部材の重なり方向に隙間がないことから、回転工具の回転により生じた塑性流動状態の金属が隙間に流入し、金属が不足するようなことは起こらず、接合欠陥は発生しない。   Since there is no gap in the overlapping direction of both joining members, the metal in the plastic flow state generated by the rotation of the rotary tool flows into the gap, and there is no shortage of metal, and no joining defect occurs.

本発明の実施形態を、図面を用いて説明する。   Embodiments of the present invention will be described with reference to the drawings.

図１において、１０，２０は摩擦攪拌接合により接合しようとしている中空形材で、図１は中空形材１０，２０の断面を示している。   In FIG. 1, 10 and 20 are hollow members to be joined by friction stir welding, and FIG. 1 shows a cross section of the hollow members 10 and 20.

中空形材１０，２０は、それぞれ図１（ａ）において実質的に上下で平行な２枚の面板１１，１２，２１，２２と各面板１１，１２，２１，２２を接続する複数の接続板（リブ）１３，２３からなり、接続板１３，２３は面板１１，２１，１２，２２に対して直交しており、中空形材１０，２０は縦リブ構成となっている。   The hollow members 10 and 20 are each a plurality of connecting plates that connect two face plates 11, 12, 21, and 22 substantially parallel to each other in FIG. 1A and the face plates 11, 12, 21, and 22. (Ribs) 13 and 23, the connection plates 13 and 23 are orthogonal to the face plates 11, 21, 12 and 22, and the hollow members 10 and 20 have a vertical rib configuration.

中空形材２０の1個の接続板２３ａは中空形材１０側の中空形材２０の端部にあり、角部に切欠部２４，２５がある。中空形材１０の端部には中空形材２０における接続板２３ａに相当するものはなく、面板１１，１２の中空形材２０側は自由端であり、脚部１４，１５と呼ぶ。   One connection plate 23a of the hollow member 20 is located at the end of the hollow member 20 on the hollow member 10 side, and there are notches 24 and 25 at the corners. There is no end corresponding to the connection plate 23a in the hollow shape member 20 at the end of the hollow shape member 10, and the hollow plate 20 side of the face plates 11 and 12 is a free end, which is called leg portions 14 and 15.

摩擦攪拌接合により接合する場合、脚部１４，１５を切欠部２４，２５に嵌め合わせる。   When joining by friction stir welding, the leg parts 14 and 15 are fitted to the notches 24 and 25.

従って、中空形材１０は一方の接合部材で、脚部１４，１５は切欠部２４，２５に接合される互い違いとなる凸部に相当し、中空形材２０は他方の接合部材で、切欠部２４，２５は脚部１４，１５と接合される互い違いとなる凹部に相当する。   Therefore, the hollow shape member 10 corresponds to one joining member, the leg portions 14 and 15 correspond to alternate convex portions joined to the notches 24 and 25, and the hollow shape member 20 corresponds to the other joining member and the notch portion. Reference numerals 24 and 25 correspond to recessed portions that are alternately joined to the leg portions 14 and 15.

脚部１４，１５は端面部に向かうほど厚くなり、外面側が末広がり状となっている。脚部１４，１５における端部での厚さｔは端部に向かうほど面板１１，１２の厚さより厚くなり、切欠部２４，２５の深さｄに合わせてある。接続板１３，２３の寸法により、面板１１，１２の平坦な部分の表面位置は、面板２１，２２の平坦な表面位置に一致するように位置合わせをしてある。なお、中空形材１０，２０は、縦リブ型中空押出形材を用いている。   The leg portions 14 and 15 become thicker toward the end surface portion, and the outer surface side is widened toward the end. The thickness t at the end portions of the leg portions 14 and 15 becomes thicker than the thickness of the face plates 11 and 12 toward the end portions, and is adjusted to the depth d of the cutout portions 24 and 25. Depending on the dimensions of the connection plates 13 and 23, the surface positions of the flat portions of the face plates 11 and 12 are aligned with the flat surface positions of the face plates 21 and 22. In addition, the hollow shape materials 10 and 20 use the vertical rib type hollow extrusion shape material.

図１（ｂ）に示すように、接合時に中空形材１０の脚部１４，１５と中空形材２０の切欠部２４，２５を嵌め合わせると、中空形材２０の切欠部２４，２５に脚部１４，１５が重なり、面板１１，１２と面板２１，２２の端面が突き合わされる。   As shown in FIG. 1B, when the leg portions 14 and 15 of the hollow shape member 10 and the notches 24 and 25 of the hollow shape member 20 are fitted together at the time of joining, the legs 24 and 25 are joined to the notches 24 and 25 of the hollow shape member 20. The portions 14 and 15 overlap, and the end surfaces of the face plates 11 and 12 and the face plates 21 and 22 are abutted.

中空形材２０の端部における接続板２３ａに切欠部２４，２５を設けて突出した部分は、脚部１４，１５を重ねた時の裏当てとして機能する。   The protruding portions of the connection plate 23a provided with the notches 24 and 25 at the end of the hollow shape member 20 function as a backing when the leg portions 14 and 15 are overlapped.

中空形材１０，２０を突き合わせたとき、突き合わせ部の隙間は出来るだけ小さくするように拘束治具等を用いて固定する。しかしながら、脚部１４，１５と切欠部２４，２５の間には裏当て隙間ｓが発生する。これは、中空形材１０の端部と中空形材２０の端部を嵌め合わせるとき、必要なものである。   When the hollow shape members 10 and 20 are butted together, they are fixed using a restraining jig or the like so that the gap between the butted portions is as small as possible. However, a backing gap s is generated between the leg portions 14 and 15 and the cutout portions 24 and 25. This is necessary when the end of the hollow member 10 and the end of the hollow member 20 are fitted together.

図１（ｂ）において、３０は大径部分のショルダ３１の先端に小径部のピン３２を設けた回転工具である。ピン３２にはネジ状の溝または軸方向に溝を設けることがある。ピン３２の長さは切欠部２４，２５の深さｄにほぼ等しい。   In FIG. 1B, reference numeral 30 denotes a rotary tool in which a pin 32 having a small diameter portion is provided at the tip of a shoulder 31 having a large diameter portion. The pin 32 may be provided with a screw-like groove or an axial groove. The length of the pin 32 is substantially equal to the depth d of the notches 24 and 25.

接合に際しては、中空形材１０，２０の突き合わせ部に回転工具３０を回転させながら挿入する。回転工具３０による押付力が発生すため、脚部１４，１５は押付力を受けて変形する。この変形は、脚部１４，１５は厚さが均一の場合、撓みとなり曲面状に変形する。   At the time of joining, the rotary tool 30 is inserted into the butted portion of the hollow shape members 10 and 20 while being rotated. Since a pressing force is generated by the rotary tool 30, the leg portions 14 and 15 are deformed by receiving the pressing force. This deformation causes the leg portions 14 and 15 to bend and deform into a curved surface when the thickness is uniform.

しかしながら、脚部１４，１５は厚さが均一でなく、端部に向かうほど厚くなっているために、接続板１３との根本部分Ａ，Ｂのところで折れ曲がる形の変形となる。   However, since the leg portions 14 and 15 are not uniform in thickness and become thicker toward the end portion, the leg portions 14 and 15 are deformed so as to be bent at the base portions A and B with the connection plate 13.

回転工具３０を回転させながら接合部に沿って移動させることによって、脚部１４，１５と切欠部２４，２５は切れ目部分を塑性流動させ摩擦攪拌接合により接合していく。   By moving the rotary tool 30 along the joint while rotating, the leg portions 14 and 15 and the notches 24 and 25 are joined by friction stir welding by plastically flowing the cut portions.

回転工具３０の軸心が面板１１，１２，２１，２２の嵌め合わせた切れ目部分になるようにして、ピン３２を挿入する。挿入量は、ショルダ３１の下端が、面板１１，１２，２１，２２の外面より若干挿入されるようにする。また、ピン３２の下端を切欠部２４，２５の深さｄより若干深い位置まで挿入するようにして、嵌め合わせた切れ目部分は充分塑性流動するようにすると良い。   The pin 32 is inserted so that the axial center of the rotary tool 30 is a cut portion where the face plates 11, 12, 21, and 22 are fitted. The amount of insertion is such that the lower end of the shoulder 31 is inserted slightly from the outer surface of the face plates 11, 12, 21, 22. Further, it is preferable that the lower end of the pin 32 is inserted to a position slightly deeper than the depth d of the notches 24 and 25 so that the fitted cut portion is sufficiently plastically flowed.

接合前には脚部１４，１５と切欠部２４，２５の間には裏当て隙間ｓが存在するが、接合中の脚部１４，１５の折れ曲がり変形により解消され、脚部１４，１５の外面と中空形材２０の面板２１，２２の外面は一致し、図１（ｃ）に示すように、接合後は平坦面が得られる。従って、接合後に平坦化加工を施す必要はない。   Before joining, there is a backing gap s between the leg portions 14 and 15 and the cutout portions 24 and 25, but it is eliminated by bending deformation of the leg portions 14 and 15 being joined, and the outer surfaces of the leg portions 14 and 15 And the outer surfaces of the face plates 21 and 22 of the hollow shape member 20 coincide with each other, and a flat surface is obtained after joining as shown in FIG. Therefore, it is not necessary to perform a flattening process after joining.

図１（ｃ）において領域Ｗは、接合したい箇所の金属部材を塑性流動させ固相接合をした領域である。両接合部材１０，２０の重なり方向に隙間がないことから、回転工具３０の回転により生じた塑性流動状態の金属が隙間に流入して金属が不足するようなことは起こらず、接合欠陥は発生しない。   In FIG. 1C, a region W is a region where a metal member at a location to be joined is plastically flowed and solid phase joined. Since there is no gap in the overlapping direction of both the joining members 10 and 20, the metal in the plastic flow state generated by the rotation of the rotary tool 30 does not flow into the gap and the metal is insufficient, and a joining defect occurs. do not do.

脚部１４，１５の端部は回転工具３０のショルダ３１により表面部の金属を内部に押し込むようにすると、接合部に若干の凹部ができる。この凹部ができないようにするために、ショルダ３１の接触する範囲においては脚部の外側に突起部分を設けることが望ましい。   When the end portions of the leg portions 14 and 15 are made to push the metal of the surface portion into the inside by the shoulder 31 of the rotary tool 30, a slight concave portion is formed in the joint portion. In order to prevent the concave portion from being formed, it is desirable to provide a protruding portion on the outside of the leg portion in the range where the shoulder 31 contacts.

本発明の他の実施例を、図２を用いて説明する。   Another embodiment of the present invention will be described with reference to FIG.

図２において、図1に示したものと同一物・相当物には同一符号を付けて、説明の簡略化を図った。   In FIG. 2, the same components as those shown in FIG.

図２の中空形材１０，２０では、トラスリブ型の中空押出形材を用いている。以下、図１の実施例との相違点を中心に説明する。   In the hollow shape members 10 and 20 of FIG. 2, a truss rib type hollow extruded shape member is used. The following description will focus on differences from the embodiment of FIG.

接続板（リブ）１３，２３は面板１１，１２，２１，２２に対して傾斜しているが、中空形材２０の端部の接続板２３ａは裏当て材として機能させるために面板２１，２２に対し直交するように設けてある。   Although the connection plates (ribs) 13 and 23 are inclined with respect to the face plates 11, 12, 21 and 22, the connection plates 23 a at the end of the hollow shape member 20 function as a backing material to face plates 21 and 22. It is provided so as to be orthogonal to.

中空形材１０における脚部１４の構成は図１の脚部１４の構成と同様であり、その厚さｔ１は中空形材２０の切欠部２４の深さｄ１と等しく、接続板１３との根本部分Ａから端部に向かうほど、厚さは厚くなり、外側に末拡がりになっている。   The configuration of the legs 14 in the hollow profile 10 is the same as the configuration of the legs 14 in FIG. 1, and its thickness t1 is equal to the depth d1 of the notch 24 of the hollow profile 20 and is fundamental to the connection plate 13. The thickness increases from the portion A toward the end portion, and spreads outward toward the outside.

しかしながら、中空形材１０における脚部１５の長さは脚部１４の長さより短く、接合時に折れ曲がりにくいので、脚部１５の厚さｔ２は中空形材２０の切欠部２５の深さｄ２と等しくしている。   However, since the length of the leg portion 15 in the hollow shape member 10 is shorter than the length of the leg portion 14 and is not easily bent during joining, the thickness t2 of the leg portion 15 is equal to the depth d2 of the notch portion 25 of the hollow shape member 20. doing.

図２（ａ）に示すように、接合前に面板１２，２２を同一平面に設置したときに、切欠部２４の深さｄ１位置よりも中空形材１０における脚部１４の下端位置は上方にあって、両者の間に隙間ｓができる。この隙間ｓは中空形材１０，２０の端部同士を突き合わせるときの余裕として必要なものである。   As shown in FIG. 2A, when the face plates 12 and 22 are installed on the same plane before joining, the lower end position of the leg portion 14 in the hollow shape member 10 is higher than the depth d1 position of the notch portion 24. There is a gap s between them. This gap s is necessary as a margin when the ends of the hollow members 10 and 20 are abutted against each other.

この隙間ｓは、図２（ｂ）に示すように、回転工具３０で中空形材１０，２０に押付力を掛けたときに、脚部１４は撓むことなく接続板１３との根本部分Ａで折れ曲がったときに解消し、また、折れ曲がりにより、面板１１，２１は同一平面位置となる。   As shown in FIG. 2 (b), the gap s does not bend when the pressing force is applied to the hollow shape members 10, 20 with the rotary tool 30, and the base portion A with the connection plate 13 is not bent. The face plates 11 and 21 are in the same plane position due to the bending.

回転工具３０のピン３２を押し込む深さは中空形材２０における切欠部２４，２５の深さｄ１，ｄ２よりも深い位置とすると、脚部１４，１５と切欠部２４，２５の接合面の全てを塑性流動化させて接合することができる。   Assuming that the depth at which the pin 32 of the rotary tool 30 is pushed into is deeper than the depths d1 and d2 of the notches 24 and 25 in the hollow shape member 20, all of the joint surfaces of the leg portions 14 and 15 and the notches 24 and 25 are provided. Can be joined by plastic fluidization.

脚部１４，１５の端部は回転工具３０のショルダ３１により表面部の金属を内部に押し込むようにすると、接合部に若干の凹部ができる。この凹部ができないようにするために、ショルダ３１の接触する範囲においては脚部の外側に突起部分を設けることが望ましい。   When the end portions of the leg portions 14 and 15 are made to push the metal of the surface portion into the inside by the shoulder 31 of the rotary tool 30, a slight concave portion is formed in the joint portion. In order to prevent the concave portion from being formed, it is desirable to provide a protruding portion on the outside of the leg portion in the range where the shoulder 31 contacts.

なお、図１の実施例でも片方の脚部は、図２の実施例の脚部１５のように末広がり状としないで平坦であっても良い。   In the embodiment of FIG. 1, one leg may be flat instead of widening like the leg 15 in the embodiment of FIG. 2.

本発明の一実施形態である縦リブ型中空押出形材の接合を説明するための図である。It is a figure for demonstrating joining of the vertical rib type | mold hollow extrusion shape material which is one Embodiment of this invention. 本発明の他の実施形態であるトラスリブ型中空押出形材の接合を説明するための図である。It is a figure for demonstrating joining of the truss rib type | mold hollow extrusion shape material which is other embodiment of this invention.

符号の説明Explanation of symbols

１０，２０・・中空形材
１１，１２，２１，２２・・面板
１３，２３，２３ａ・・接続板（リブ）
１４，１５・・脚部
２４，２５・・切欠部
３０・・回転工具
３１・・ショルダ
３２・・ピン 10, 20, ... Hollow material
11, 12, 21, 22, .. face plate
13, 23, 23a ... Connection plate (rib)
14, 15 ... leg
24, 25 ... Cutout
30 ... Rotary tool
31. Shoulder
32 ... pin

Claims (3)

２つの接合部材の接合部に互い違いとなる凸部と凹部を設け、凸部と凹部を嵌め合わせた切れ目部分に両接合部材より硬くて大きな径を持つ円柱形状回転子の回転軸線上に小さな径のピンが突出している工具の当該ピンを押圧しつつ回転させて該工具と両接合部材との間に発生する摩擦熱により両接合部材を塑性流動させ両接合部材の接合を行う摩擦攪拌接合方法において、
一方の接合部材は接合される凸部の厚さが端面部に向かうほど厚くなり外面側が末広がり状となったものを用い、この凸部を他方の接合部材における接合される凹部と嵌め合わせ、嵌め合わせた切れ目部分を回転工具により摩擦攪拌接合を行うことを特徴とする摩擦攪拌接合方法。 Provided with convex and concave portions that are staggered at the joint of the two joint members, and a small diameter on the axis of rotation of the cylindrical rotor that has a harder and larger diameter than the joint members at the cut portion where the convex and concave portions are fitted together Friction stir welding method for joining both joint members by causing the two joint members to plastically flow by frictional heat generated between the tool and both joint members by rotating the pins of the tool from which the pins protrude. In
One joining member uses the one where the thickness of the convex part to be joined becomes thicker toward the end face part, and the outer surface side is widened toward the end, and this convex part is fitted to the concave part to be joined in the other joining member. A friction stir welding method, wherein friction stir welding is performed on the combined cut portions with a rotary tool. 上記請求項１の摩擦攪拌接合方法において、一方の接合部材と他方の接合部材はそれぞれ縦リブ型中空押出形材もしくはトラスリブ型の中空押出形材であり、リブの寸法により一方の接合部材の接合される凸部と他方の接合部材における接合される凹部を嵌め合わせた切れ目部分を工具のピンで押圧したときに一方の接合部材と他方の接合部材はそれらの外面が平坦な位置に揃うようにしてあることを特徴とする摩擦攪拌接合方法。   2. The friction stir welding method according to claim 1, wherein the one joining member and the other joining member are respectively a longitudinal rib type hollow extruded shape member or a truss rib type hollow extruded shape member. When one of the joining members and the other joining member is aligned with a flat position when the cut portion where the projecting convex portion and the recessed portion to be joined in the other joining member are fitted is pressed with the pin of the tool A friction stir welding method, wherein 上記請求項１の摩擦攪拌接合方法において、一方の接合部材の接合される凸部と他方の接合部材における接合される凹部を嵌め合わせた個所に発生する隙間を嵌め合わせた切れ目部分に対する工具のピンによる押し付けで解消し、一方の接合部材と他方の接合部材の外面が平坦になるようにして接合を行なうことを特徴とする摩擦攪拌接合方法。   2. The friction stir welding method according to claim 1, wherein a pin of a tool with respect to a cut portion in which a gap generated at a portion where a convex portion to be joined of one joining member and a concave portion to be joined in the other joining member are fitted is fitted. The friction stir welding method is characterized in that the joining is eliminated by pressing with one of the joining members so that the outer surfaces of one joining member and the other joining member become flat.
JP2004000047A 2004-01-05 2004-01-05 Friction stir welding method Expired - Fee Related JP4311206B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105764A (en) * 2005-10-14 2007-04-26 Kinki Sharyo Co Ltd Hollow shape pair for friction bonding
JP2010064634A (en) * 2008-09-11 2010-03-25 Nippon Sharyo Seizo Kaisha Ltd Manufacturing method of structure for railroad car by friction stir joining
CN103737237A (en) * 2014-01-14 2014-04-23 建科机械（天津）股份有限公司 Welding mechanism for producing plane-truss equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5014391B2 (en) 2009-09-11 2012-08-29 ファナック株式会社 Numerical control device having a function of determining a machine abnormality based on signals from a plurality of sensors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007105764A (en) * 2005-10-14 2007-04-26 Kinki Sharyo Co Ltd Hollow shape pair for friction bonding
JP2010064634A (en) * 2008-09-11 2010-03-25 Nippon Sharyo Seizo Kaisha Ltd Manufacturing method of structure for railroad car by friction stir joining
CN103737237A (en) * 2014-01-14 2014-04-23 建科机械（天津）股份有限公司 Welding mechanism for producing plane-truss equipment
CN103737237B (en) * 2014-01-14 2015-09-30 建科机械（天津）股份有限公司 A kind of welding mechanism producing monolithic truss equipment

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