JP2004261859A - Method of friction stir welding of vehicle, equipment therefor, and structural member for friction stir welding - Google Patents

Method of friction stir welding of vehicle, equipment therefor, and structural member for friction stir welding Download PDF

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Publication number
JP2004261859A
JP2004261859A JP2003057471A JP2003057471A JP2004261859A JP 2004261859 A JP2004261859 A JP 2004261859A JP 2003057471 A JP2003057471 A JP 2003057471A JP 2003057471 A JP2003057471 A JP 2003057471A JP 2004261859 A JP2004261859 A JP 2004261859A
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Japan
Prior art keywords
friction stir
stir welding
vehicle
filler
structural member
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JP2003057471A
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Japanese (ja)
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JP3919682B2 (en
Inventor
Ryoji Ishida
良二 石田
Masakuni Esumi
昌邦 江角
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Hitachi Ltd
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Hitachi Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a friction stir welding method for reliably joining two members with a gap present in a joining part. <P>SOLUTION: A slit machining unit has a cutting tool 142 for grooving, and cuts the space of a joining part 10 between a side frame body 4 and an end frame body 8 to a uniform width. A groove of the uniform width is formed by this grooving. Next, a filler 180 is inserted into the groove by a filler feed unit. The filler 180 is, for example, a strip formed of an aluminum alloy, and T-shaped in cross section so as to be easily inserted into and restricted by the groove. A friction stir welding tool 152 of the friction stir welding unit performs friction stir welding around the inserted filler to form a friction stir welded part FW. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、鉄道車両等の外板部材の接合部を摩擦攪拌接合する方法、その装置と、摩擦攪拌接合用の構造部材に関する。
【０００２】
【従来の技術】
例えば、摩擦攪拌接合方法は、部材の接合部に挿入した工具を回転させながら部材に対して相対的に移動させ、工具に近接した領域の部材を塑性流動させ、部材を固相接合する方法である。
【０００３】
この場合、突き合せた部材間の隙間が重要である。隙間が過大となると、良好に接合できない。鉄道車両の車体のように、側構体と妻構体との接合部にあっては部材の製作誤差が大きくなりやすく、隙間が過大になりやすい。
【０００４】
下記特許文献１では、接合すべき２つの部材の突き合せ部にスリットを設けて隙間を一定とし、次にこの隙間に補填材を配置して摩擦攪拌接合をしている。
【０００５】
【特許文献１】
特開２０００−２３３２８５号公報（ＥＰ１１４７８３２Ａ２）
【特許文献２】
特開２００２−００１４４４号公報（ＥＰ１１４７８３３２Ａ２）
【０００６】
【発明が解決しようとする課題】
本発明は、鉄道車両の妻と側構体と接合部を自動的に摩擦攪拌接合する方法、その装置と、摩擦攪拌接合に適した構造部材を提供するものである。
【０００７】
【課題を解決するための手段】
本願発明は、鉄道車両の屋根構体、台枠、側構体を鉄道車両の長手方向に沿って摩擦攪拌接合し、
次に、前記接合構造体の長手方向端部を妻構体に突き合わせ、また、前記突き合わせ部の車内側に垂直方向に沿って前記屋根構体または屋根構体と前記側構体との接続部の雨樋からの雨水を下方に導く筒状の雨樋部材を配置し、左右の前記雨樋部材の間に荷重受け部材を配置し、
車外側から、前記雨樋部材を裏当て金として、前記突き合わせ部を摩擦攪拌接合すること、
を特徴とする。
【０００８】
【発明の実施の形態】
図１は、本発明を適用する鉄道車両の端部を示す斜視図である。
全体を符号１で示す車体は、台枠２上に側構体４，尾根構体６を有し、構体の端部には妻構体８が接合部１０を介して接合される。妻構体８は車体１の長手方向の端部を閉鎖するもので、隣接する車両に行くための管通路９が有る。妻構体８の外周部は側構体４、屋根構体６に平行で、これらに突き合わせられて接合されている。
【０００９】
図２の断面図に示すように突き合せ部（接合部）１０の内側には、雨樋部材２０が配置される。この雨樋部材２０は、柱状で、中空の内部空間２２は、尾根構体６から落下する雨滴または屋根構体６と側構体４との接続部の雨樋から落下する雨滴を下方に案内するものである。雨樋部材２０の車外側の面に、側構体４、妻構体８の端部が重なっている。側構体４の端部と妻構体８の端部とは突き合せられている。雨樋部材２０の突出片２８は側構え体４の中空押出し形材の内面側の面５に適宜溶接されている。
【００１０】
妻構体８はアルミニウム合金製であり、側構体４、屋根構体６との突き合せ部を有する。妻構体８の突き合せ部１０のための突片８ｂは妻構体の他に部分と溶接または、プレス、または逐次成型で、一体に構成されている。逐次成型は特許文献２に示されている。屋根構体６と妻構体８との突き合せ部は従来と同様に溶接される。
本発明は、側構体４と妻構体８との突き合せ部１０を摩擦攪拌接合する方法に関する。
【００１１】
図３は、本発明の接合装置の概要を示す正面図、図４は側面図である。
車体１は、定盤３０上に設けた構体支持装置４０により拘束支持される。車両の内側には、摩擦攪拌接合による荷重を受ける荷重受け部材５０が複数取付けられる。
【００１２】
全体を符号１００で示す接合装置は、車両の外側に立設される支柱１１０を有し、支柱１１０には水平方向に設けられる複数本の水平方向レール１１２が取付けられる。この水平方向レール１１２に対して、案内される走行ユニット１２０は、リニアガイド１１６を有し、コロ１１４等を介してレール１１２に支持される。
この走行ユニット１２０に対して接合ユニット１３０が垂直方向に移動自在に支持される。
【００１３】
接合ユニット１３０は、スリット加工ユニット１４０と摩擦攪拌接合ユニット１５０により構成される。
スリット加工ユニット１４０と摩擦攪拌接合ユニット１５０の間には、充填材の供給ユニット１６０が装備される。
【００１４】
図５は、接合ユニットの構成を示す説明図、図６は図５の各矢視図である。
スリット加工ユニット１４０は、溝加工用の切削工具１４２を備えて、側構体４と妻構体８との突き合せ部（接合部）１０の隙間Ｇ１を均一の幅寸法に切削加工する。この溝加工による図６の（ｂ）に示すように、均一な幅寸法の溝Ｇ２が形成される。
【００１５】
次に、この溝Ｇ２に対して、充填材供給ユニット１６０により充填材１８０を挿入する。この充填材１８０は、突き合せ部の側構体４、妻構体６と同一材料のアルミニウム合金を帯状にした材料であって、溝Ｇ２に挿入、拘束しやすいように、断面形状はＴ字形をしている。
【００１６】
充填材供給ユニット１６０は、スリット加工ユニットの切削工具１４２と摩擦攪拌接合ユニット１５０の摩擦攪拌接合工具１５２との間にあり、充填材１８を上方から下方に供給している。図示してはいないが、充填材１８０をローラで溝Ｇ２に押し込んでいる。
摩擦攪拌接合ユニット１５０の摩擦攪拌接合工具１５２は、この挿入された充填材を中心として摩擦攪拌接合を行い、摩擦攪拌接合部ＦＷを形成する。
【００１７】
上述した一連の工程により、接合部を自動的に摩擦攪拌接合することができる。
つまり、突き合わせ部の下端から上端に向けて、突合せ部１０を切削しつつ、その溝Ｇ２に充填材１８０を挿入しつつ、摩擦攪拌接合工具１５２を回転させながら挿入し移動させ、摩擦攪拌接合するものである。
また、接合部を均一な幅寸法に切削し、充填材１８０を供給して摩擦攪拌接合するので、確実で強度の高い接合部を得ることができる。
【００１８】
側構体４の端部、および妻構体６の端部は雨樋部材２０の断面が四角形の一辺の平坦面に重なっている。突き合せ部を摩擦攪拌接合する際に、突き合せ部に大きな荷重がかかるが、この荷重は雨樋部材２０で支えられ、該雨樋部材２０は荷重受け部材５０を介して他方の雨樋部材２０で支持され、左右から、摩擦攪拌接合が行われるので、摩擦攪拌接合は良好に接合され、接合部が曲がって凹状になることがなく、見栄えのよい接合部ＦＷを得ることができる。
摩擦攪拌接合後、残った充填材１８０は切削によって平らにする。
【００１９】
図７は、本発明の接合装置の他の実施例を示し、図８は図７のＥ−Ｅ矢視図を示す。
スリット加工ユニット１４０は、スリットカッター１４２と、スリットカッター１４２の位置を接合部の中心に倣うためのセンサ１４４を有する。同様に摩擦攪拌接合ユニット１５０も摩擦攪拌接合工具１５２を接合部の中心に倣うためのセンサ１５４を備える。
【００２０】
充填材１８０の供給ユニット１６０は、送給ローラ１７０，１７２を有し、充填材１８０を挟持した状態で充填材１８０を送給する。
すなわち、摩擦攪拌接合工具１５２により、矢印Ｓ方向に接合が行われる際に、充填材１８０には矢印Ｒで示す充填材１８０を供給源側へ戻そうとする推力が作用する。
【００２１】
そこで、送給ローラ１７０に駆動力を与えて充填材１８０を摩擦攪拌接合工具１５２側へ積極的に送る構成を備える。つまり、送給ローラ１７０と１７２で上下から充填材１８０を挟んでいる。
摩擦攪拌接合工具１５２の直前に装備する押えロール１５６は、充填材がこの推力により溝から突出しようとする作用を防止する機能を備える。
本実施例装置によれば、より確実な接合を達成することができる。
【００２２】
図９は、本発明に適用される雨樋部材２００に充填材の機能を付加した例を示す。雨樋部材２００の車外側の面には充填材１８０に相当する突出部２０４と妻構体８の突片８ｂに重なる突出部２０６とを有する。
突出部２０４，２０６を有する雨樋部材２００は押出し形材で設けることができる。
このものは、溝Ｇ２を切削することはない。
【００２３】
側構体４の端部と妻構体８の突片８ｂの端部と突出部２０４の間の間の隙間は、突出部２０４の頂部、突出片２０６の金属によって埋められる。摩擦攪拌接合工具の小径部と大径部との境は突出部２０６内に位置している。摩擦攪拌接合後、残った突出部２０４，２０６は切削加工を施す。
【００２４】
図１０は、構造部材の更に他の例を示す。
雨樋部材２１０は、突出部２１４の頂部の両側に突出部２１６，２１６ｂを有する。摩擦攪拌接合工具の両側に突出部２１６，２１６ｂを有するので、良好に接合できる。
【００２５】
図１１は、雨樋部材の更に他の例を示す。
突出部２２６，２２６ｂと車外側の面の隙間は入り口側が拡大しており、側構体４、妻構体６の挿入を容易にしている。
【図面の簡単な説明】
【図１】本発明を適用する軸の斜視図。
【図２】本発明を適用する軸の断面図。
【図３】本発明の接合装置の正面図。
【図４】本発明の接合装置の側面図。
【図５】接合ユニットの説明図。
【図６】図５の矢視図。
【図７】接合装置の他の例を示す説明図。
【図８】図７のＥ−Ｅ断面図。
【図９】構造部材の他の例を示す断面図。
【図１０】構造部材の他の例を示す断面図。
【図１１】構造部材の他の例を示す断面図。
【符号の説明】
１ 鉄道車両
４ 側構体
８ 屋根構体
１０ 接合部
２０ 雨樋部材
１３０ 接合ユニット
１４２ スリットカッター
１５２ 摩擦攪拌接合工具
１８０ 充填材
２０４，２０６ 突出部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and apparatus for friction stir welding a joint portion of an outer plate member such as a railway vehicle, and a structural member for friction stir welding.
[0002]
[Prior art]
For example, the friction stir welding method is a method in which a tool inserted into a joint portion of a member is relatively moved with respect to the member while rotating, a member in an area close to the tool is plastically fluidized, and the member is solid-phase joined. is there.
[0003]
In this case, the gap between the butted members is important. If the gap is too large, good joining cannot be achieved. At the joint between the side structure and the wife structure, such as the body of a railway vehicle, the manufacturing error of the members tends to be large, and the gap tends to be too large.
[0004]
In Patent Literature 1 below, a slit is provided at a butt portion between two members to be joined to make a gap constant, and then a filler material is arranged in the gap to perform friction stir welding.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2000-233285 (EP1147832A2)
[Patent Document 2]
JP-A-2002-001444 (EP1478332A2)
[0006]
[Problems to be solved by the invention]
The present invention provides a method and apparatus for automatically performing friction stir welding between a wife, a side structure, and a joint of a railway vehicle, and a structural member suitable for friction stir welding.
[0007]
[Means for Solving the Problems]
The present invention is a friction stir welding of the roof structure, underframe, and side structure of the railway vehicle along the longitudinal direction of the railway vehicle,
Next, the longitudinal end of the joint structure is abutted against the end structure, and the rain gutter at the connection portion between the roof structure or the roof structure and the side structure is provided along the vehicle interior of the abutting portion in a vertical direction. Arranging a cylindrical rain gutter member for guiding rainwater downward, arranging a load receiving member between the left and right rain gutter members,
From the outside of the vehicle, friction stir welding of the butted portion with the rain gutter member as a backing metal,
It is characterized by.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing an end of a railway vehicle to which the present invention is applied.
The vehicle body indicated by reference numeral 1 as a whole has a side structure 4 and a ridge structure 6 on an underframe 2, and a wife structure 8 is joined to an end of the structure via a joint 10. The wife structure 8 closes the longitudinal end of the vehicle body 1 and has a pipe passage 9 for going to an adjacent vehicle. The outer peripheral portion of the wife structure 8 is parallel to the side structure 4 and the roof structure 6 and is joined to the side structure 4 and the roof structure 6.
[0009]
As shown in the cross-sectional view of FIG. 2, a gutter member 20 is arranged inside the butt portion (joining portion) 10. The rain gutter member 20 has a columnar shape, and the hollow internal space 22 guides rain drops falling from the ridge structure 6 or rain drops falling from the rain gutter at the connection between the roof structure 6 and the side structure 4. is there. The ends of the side structure 4 and the end structure 8 overlap the outer surface of the gutter member 20. The end of the side structure 4 and the end of the wife structure 8 are abutted. The projecting piece 28 of the gutter member 20 is appropriately welded to the inner surface 5 of the hollow extruded profile of the side support 4.
[0010]
The wife structure 8 is made of an aluminum alloy and has a butt portion with the side structure 4 and the roof structure 6. The protruding piece 8b for the butting portion 10 of the wife structure 8 is integrally formed with a part other than the wife structure by welding, pressing, or sequential molding. Sequential molding is disclosed in Patent Document 2. The butt portion between the roof structure 6 and the wife structure 8 is welded in a conventional manner.
The present invention relates to a method of friction stir welding the butted portion 10 of the side structure 4 and the end structure 8.
[0011]
FIG. 3 is a front view showing an outline of the joining apparatus of the present invention, and FIG. 4 is a side view.
The vehicle body 1 is restrained and supported by a structure support device 40 provided on a surface plate 30. A plurality of load receiving members 50 that receive a load due to friction stir welding are mounted inside the vehicle.
[0012]
The joining device, generally designated by the reference numeral 100, has a column 110 that stands upright on the outside of the vehicle. The traveling unit 120 guided to the horizontal rail 112 has a linear guide 116 and is supported by the rail 112 via a roller 114 or the like.
The joining unit 130 is supported movably in the vertical direction with respect to the traveling unit 120.
[0013]
The joining unit 130 includes a slit processing unit 140 and a friction stir welding unit 150.
A filler supply unit 160 is provided between the slit processing unit 140 and the friction stir welding unit 150.
[0014]
FIG. 5 is an explanatory view showing the configuration of the joining unit, and FIG. 6 is a view as seen from each arrow in FIG.
Slitting unit 140 provided with a cutting tool 142 for grooving, cutting a gap G 1 of the side structure 4 and abutting portions between the end structures 8 (joint) 10 to a uniform width. As shown in FIG. 6 (b) by the grooving, groove G 2 having a uniform width is formed.
[0015]
Next, with respect to the groove G 2, inserting the filling material 180 by the filling material supply unit 160. The filler 180 is butted portion side structure 4, the end structures 6 and the aluminum alloy of the same material a material which is in a strip, inserted in the groove G 2, so as to facilitate constraining the cross-sectional shape T-shaped are doing.
[0016]
The filler supply unit 160 is located between the cutting tool 142 of the slit processing unit and the friction stir welding tool 152 of the friction stir welding unit 150, and supplies the filler 18 from above to below. Although not shown, it is pushed into the groove G 2 a filler 180 with rollers.
The friction stir welding tool 152 of the friction stir welding unit 150 performs friction stir welding with the inserted filler as a center to form a friction stir welding part FW.
[0017]
Through the series of steps described above, the joint can be automatically subjected to friction stir welding.
In other words, the butted portion lower end toward the upper end from, while cutting the butted portion 10, while inserting the filling material 180 in the groove G 2, is a friction stir welding tool 152 is inserted while rotating movement, the friction stir welding Is what you do.
In addition, since the joint is cut into a uniform width and the filler 180 is supplied to perform friction stir welding, a reliable and high-strength joint can be obtained.
[0018]
The end of the side structure 4 and the end of the end structure 6 have a cross section of the rain gutter member 20 overlapping a flat surface of one side of a square. When the butt portion is friction stir welded, a large load is applied to the butt portion, but this load is supported by the rain gutter member 20, and the rain gutter member 20 is connected to the other gutter member via the load receiving member 50. Since the friction stir welding is carried out from the left and right by the friction stir welding, the friction stir welding can be performed well, and the joint FW can be obtained with good appearance without the joint being bent and becoming concave.
After the friction stir welding, the remaining filler 180 is flattened by cutting.
[0019]
FIG. 7 shows another embodiment of the joining apparatus of the present invention, and FIG. 8 is a view taken along the line EE of FIG.
The slit processing unit 140 has a slit cutter 142 and a sensor 144 for copying the position of the slit cutter 142 to the center of the joint. Similarly, the friction stir welding unit 150 includes a sensor 154 for copying the friction stir welding tool 152 to the center of the joint.
[0020]
The supply unit 160 for the filler 180 has feed rollers 170 and 172, and supplies the filler 180 while sandwiching the filler 180.
That is, when welding is performed in the direction of arrow S by the friction stir welding tool 152, a thrust acting on the filler 180 to return the filler 180 indicated by the arrow R to the supply source side is applied.
[0021]
Therefore, a configuration is provided in which a driving force is applied to the feed roller 170 to actively send the filler 180 to the friction stir welding tool 152 side. That is, the filler 180 is sandwiched between the feed rollers 170 and 172 from above and below.
The presser roll 156 provided immediately before the friction stir welding tool 152 has a function of preventing the filler from trying to protrude from the groove by the thrust.
According to the present embodiment, more reliable joining can be achieved.
[0022]
FIG. 9 shows an example in which a function of a filler is added to the rain gutter member 200 applied to the present invention. The outer surface of the gutter member 200 has a projection 204 corresponding to the filler 180 and a projection 206 overlapping the projection 8b of the end structure 8.
The gutter member 200 having the projections 204 and 206 can be provided by an extruded profile.
This thing is not able to cut a groove G 2.
[0023]
The gap between the end of the side structure 4 and the end of the projecting piece 8b of the wife structure 8 and the projecting part 204 is filled with the metal of the projecting piece 206 at the top of the projecting part 204. The boundary between the small diameter portion and the large diameter portion of the friction stir welding tool is located in the protrusion 206. After the friction stir welding, the remaining protrusions 204 and 206 are subjected to cutting.
[0024]
FIG. 10 shows still another example of the structural member.
The gutter member 210 has protrusions 216 and 216 b on both sides of the top of the protrusion 214. Since the protrusions 216 and 216b are provided on both sides of the friction stir welding tool, good welding can be achieved.
[0025]
FIG. 11 shows still another example of the gutter member.
The gap between the protruding portions 226 and 226b and the outer surface of the vehicle is enlarged on the entrance side to facilitate insertion of the side structure 4 and the end structure 6.
[Brief description of the drawings]
FIG. 1 is a perspective view of a shaft to which the present invention is applied.
FIG. 2 is a sectional view of a shaft to which the present invention is applied.
FIG. 3 is a front view of the joining device of the present invention.
FIG. 4 is a side view of the joining device of the present invention.
FIG. 5 is an explanatory view of a joining unit.
FIG. 6 is a view as seen from the arrow in FIG. 5;
FIG. 7 is an explanatory view showing another example of the joining device.
FIG. 8 is a sectional view taken along line EE of FIG. 7;
FIG. 9 is a sectional view showing another example of the structural member.
FIG. 10 is a sectional view showing another example of the structural member.
FIG. 11 is a sectional view showing another example of the structural member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Railway vehicle 4 Side structure 8 Roof structure 10 Joining part 20 Rain gutter member 130 Joining unit 142 Slit cutter 152 Friction stir welding tool 180 Filler 204, 206 Projecting part

Claims (9)

鉄道車両の屋根構体、台枠、側構体を鉄道車両の長手方向に沿って接合し、
次に、前記接合構造体の長手方向端部を妻構体に突き合わせ、また、前記突き合わせ部の車内側に垂直方向に沿って前記屋根構体または屋根構体と前記側構体との接続部の雨樋からの雨水を下方に導く筒状の雨樋部材を配置し、左右の前記雨樋部材の間に荷重受け部材を配置し、
前記雨樋部材を裏当て金として、前記突き合わせ部を車外側から、摩擦攪拌接合すること、
を特徴とする車両の摩擦攪拌接合方法。The roof structure, underframe, and side structure of the railway vehicle are joined along the longitudinal direction of the railway vehicle,
Next, the longitudinal end of the joint structure is abutted against the end structure, and the rain gutter at the connection portion between the roof structure or the roof structure and the side structure is provided along the vehicle interior of the abutting portion in a vertical direction. Arranging a cylindrical rain gutter member for guiding rainwater downward, arranging a load receiving member between the left and right rain gutter members,
Using the gutter member as a backing metal, the butting portion is friction stir welded from outside the vehicle,
A friction stir welding method for a vehicle, comprising: 請求項１記載の車両の摩擦攪拌接合方法において、前記突き合わせ部を垂直方向に沿って一定幅のスリットに切削加工し、
該スリットに、摩擦攪拌接合用に直線状の充填材を供給し、
前記充填材を含む前記突き合わせ部を前記摩擦攪拌接合すること、
を特徴とする車両の摩擦攪拌接合方法。The friction stir welding method for a vehicle according to claim 1, wherein the butting portion is cut into a slit having a constant width along a vertical direction,
To the slit, supply a linear filler for friction stir welding,
Performing the friction stir welding the butt portion including the filler;
A friction stir welding method for a vehicle, comprising: 請求項２記載の車両の摩擦攪拌接合方法において、前記切削は前記下方から、前記上方に向けて行い、前記摩擦攪拌接合を前記下方から前記上方に向けて行うこと、前記摩擦攪拌接合は前記下方から前記上方に向けて行うこと、を特徴とする車両の摩擦攪拌接合方法。3. The friction stir welding method for a vehicle according to claim 2, wherein the cutting is performed from the lower side toward the upper side, and the friction stir welding is performed from the lower side to the upper side. A friction stir welding method for a vehicle. 請求項１記載の車両の摩擦攪拌接合方法において、前記雨樋部材は、車外側に突出する突出部を備え、該突出部の先端部は前記妻構体又は前記接合構造体の端部の車外側に重なる部分を有し、該突出部を含む前記突き合わせ部を車外側から、摩擦攪拌接合すること、
を特徴とする車両の摩擦攪拌接合方法。2. The friction stir welding method for a vehicle according to claim 1, wherein the rain gutter member includes a protrusion protruding to the outside of the vehicle, and a tip end of the protrusion is outside the end of the end structure or the joining structure. Has a portion that overlaps, friction stir welding the butting portion including the protruding portion from the outside of the vehicle,
A friction stir welding method for a vehicle, comprising: 鉄道車両の屋根構体、台枠、側構体を鉄道車両の長手方向に沿って接合した接合構造体の長手方向端部を妻構体に突き合わせたものに対して、前記突き合わせ部を摩擦攪拌接合する装置において、
前記突き合わせ部の車内側に垂直方向に沿って前記屋根構体または屋根構体と前記側構体との接続部の雨樋からの雨水を下方に導く筒状の雨樋部材を配置し、左右の前記雨樋部材の間に荷重受け部材を配置しており、
前記装置は、前記突き合わせ部を垂直方向に沿って一定幅のスリットに切削加工するスリット加工ユニットと、前記スリットに摩擦攪拌接合用の充填材を供給する充填材供給ユニットと、前記充填材を含む前記突き合わせ部を摩擦攪拌接合する摩擦攪拌接合ユニットを備え、該摩擦攪拌接合ユニットは、前記雨樋部材を裏当て金として車外側から摩擦攪拌接合するものであること、
を特徴とする車両の摩擦攪拌接合装置。Apparatus for friction stir welding the butted portion to the joint structure in which the roof structure, underframe, and side structure of the railway vehicle are joined along the longitudinal direction of the railway vehicle with the longitudinal end of the joined structure being joined to the end structure. At
A cylindrical rain gutter member for guiding rainwater downward from a rain gutter at a connection portion between the roof structure or the roof structure and the side structure is disposed along a vertical direction inside the abutting portion of the vehicle, and A load receiving member is arranged between the gutter members,
The apparatus includes a slit processing unit that cuts the butt portion into a slit having a constant width along a vertical direction, a filler supply unit that supplies a filler for friction stir welding to the slit, and includes the filler. A friction stir welding unit for friction stir welding the butted portion, wherein the friction stir welding unit is to perform friction stir welding from the outside of the vehicle using the rain gutter member as a backing metal;
A friction stir welding apparatus for a vehicle, comprising: 隙間を有して突き合わせた部分の前記隙間に配設される構造部材であって、閉断面を有し、閉断面の外側に設けられて前記突き合わせた部分を通過して接合すべき部材の外側に重なる部分を備えること、
を特徴とする摩擦攪拌接合用構造部材。A structural member disposed in the gap at the butted portion with a gap, wherein the structural member has a closed cross section, and is provided outside the closed cross section and is outside a member to be joined through the butted portion. Having a portion overlapping the
A structural member for friction stir welding, characterized in that: 請求項６記載の摩擦攪拌接合用構造部材において、前記重なる部分は接合すべき部材の一方の外側に重なる断面形状を有すること、
を特徴とする摩擦攪拌接合用構造部材。7. The structural member for friction stir welding according to claim 6, wherein the overlapping portion has a cross-sectional shape overlapping one of the members to be joined.
A structural member for friction stir welding, characterized in that: 請求項６記載の摩擦攪拌接合用構造部材において、突出部は、接合すべき部材の両方の外側に重なる断面形状を有すること、
を特徴とする摩擦攪拌接合用構造部材。The structural member for friction stir welding according to claim 6, wherein the protrusion has a cross-sectional shape overlapping both outer sides of the member to be joined.
A structural member for friction stir welding, characterized in that: 側構体釜長手方向の端部に配置される雨樋部材であって、閉断面の外側の面に側構体の端部及び妻構体の端部に重なる平面を有し、さらに、前記側構体の端部と妻構体の端部との突き合わせ部を通過して接合すべき部材の外側に重なる突出部を備えること、
を特徴とする摩擦攪拌接合用構造部材。A rain gutter member disposed at an end in the longitudinal direction of the side structure kettle, having a plane overlapping an end of the side structure and an end of the end structure on an outer surface of the closed cross section, and further comprising: Providing a projecting portion that overlaps the outside of the member to be joined by passing the butting portion of the end portion and the end portion of the wife structure,
A structural member for friction stir welding, characterized in that:
JP2003057471A 2003-03-04 2003-03-04 Friction stir welding method for vehicle, apparatus and friction stir welding structural member Expired - Fee Related JP3919682B2 (en)

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