JP3488401B2 - Friction stir welding method and structure - Google Patents
Friction stir welding method and structureInfo
- Publication number
- JP3488401B2 JP3488401B2 JP25973899A JP25973899A JP3488401B2 JP 3488401 B2 JP3488401 B2 JP 3488401B2 JP 25973899 A JP25973899 A JP 25973899A JP 25973899 A JP25973899 A JP 25973899A JP 3488401 B2 JP3488401 B2 JP 3488401B2
- Authority
- JP
- Japan
- Prior art keywords
- rotary tool
- friction stir
- stir welding
- members
- joining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/045—Hollow panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明はアルミニウム合金等
の重ね継ぎ手の摩擦攪拌接合に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to friction stir welding of lap joints made of aluminum alloy or the like.
【0002】[0002]
【従来の技術】摩擦攪拌接合方法は、接合部に挿入した
丸棒(回転工具という。)を回転させながら接合線に沿
って移動させ、接合部を発熱、軟化させ、塑性流動さ
せ、固相接合する方法である。回転工具は、接合部に挿
入する小径部と、外部に位置する大径部とからなる。小
径部と大径部は同軸である。小径部と大径部との境は接
合部に若干挿入されている。2. Description of the Related Art In the friction stir welding method, a round bar (referred to as a rotary tool) inserted into a joint is rotated and moved along a joint line to heat the joint, soften it, and cause it to plastically flow to solid-phase. It is a method of joining. The rotary tool is composed of a small diameter portion to be inserted into the joint and a large diameter portion located outside. The small diameter portion and the large diameter portion are coaxial. The boundary between the small diameter portion and the large diameter portion is slightly inserted in the joint portion.
【0003】これは、Presented at IBEC 98, Detroit,
MI, USA, 29 Sept - 10ct 1998, No 98IBECC-37 "Appl
ication of Friction Stir Welding to Lightweight Ve
hicles"(以下、文献1という。)、および特開平9−
309164号公報(EP0797043A2)(以
下、文献2という。)に示されている。前記文献1の図
4には重ね接合が示されている。後者の文献の図9には
中空の押し出し形材の二面の接合を一方の面から行うこ
とが示されている。また、中空形材の変形を防止する継
ぎ手が示されている。This is Presented at IBEC 98, Detroit,
MI, USA, 29 Sept-10ct 1998, No 98IBECC-37 "Appl
ication of Friction Stir Welding to Lightweight Ve
hicles "(hereinafter referred to as Document 1), and JP-A-9-
309164 (EP0797043A2) (hereinafter referred to as Document 2). FIG. 4 of the aforementioned document 1 shows a lap joint. In FIG. 9 of the latter document, it is shown that two surfaces of hollow extruded frame members are joined from one surface. Also, a joint for preventing deformation of the hollow frame is shown.
【0004】[0004]
【発明が解決しようとする課題】摩擦攪拌接合は、被接
合部材を近接させ、両者を十分に攪拌して混合すること
により接合するプロセスである。不十分な攪拌は、欠陥
の発生による強度低下、見栄えの低下などの品質低下を
引き起こす。このため、接合部の品質を確保するために
は被接合部材を十分に攪拌して混合することが重要にな
る。摩擦攪拌接合は回転工具を回転させて行うので、回
転工具と被接合部材との摩擦に伴う被接合部材の流動は
主に回転方向のみである。回転軸方向にはほとんど攪拌
されない。Friction stir welding is a process in which members to be welded are brought close to each other, and the two are welded by sufficiently stirring and mixing them. Insufficient stirring causes quality deterioration such as strength deterioration and appearance deterioration due to the generation of defects. Therefore, it is important to sufficiently stir and mix the members to be joined in order to ensure the quality of the joined portion. Since friction stir welding is performed by rotating the rotary tool, the flow of the members to be welded due to the friction between the rotary tool and the members to be welded is mainly in the rotational direction. Almost no agitation occurs in the direction of the rotation axis.
【0005】このことは、Script Materially. Vol.40,
No.9, pp.1041-1046, 1999 "SOLID-STATE FLOW VISUAL
IZATION IN THE FRICTION-STIR WELDING OF 2024 AL TO
6061 AL" (以下、文献3という。)の図2に示された
とおりである。これによれば被接合部材は回転工具の回
転方向には十分に攪拌されているが、回転工具の挿入方
向すなわち回転工具の軸方向(被接合部材の厚さ方向、
重ね方向)にはほとんど攪拌されていないことがよく分
かる。This is because Script Materially. Vol.40,
No.9, pp.1041-1046, 1999 "SOLID-STATE FLOW VISUAL
IZATION IN THE FRICTION-STIR WELDING OF 2024 AL TO
This is as shown in Fig. 2 of 6061 AL "(hereinafter referred to as Reference 3). According to this, the members to be welded are sufficiently agitated in the rotation direction of the rotary tool, but the insertion direction of the rotary tool is That is, the axial direction of the rotary tool (thickness direction of the members to be joined,
It can be seen that there is almost no stirring in the stacking direction).
【0006】突き合わせ部を摩擦攪拌接合方法によって
接合すると、被接合部材は十分に攪拌され、所要の品質
の継ぎ手を得ることができる。これは被接合部材の接触
面が回転工具の回転軸に平行、すなわち前記接触面が回
転工具の回転方向に対して直角方向斜め、回転工具の回
転が接触面を攪拌し混合するためである。この場合の機
械的特性は、従来のアーク溶接の場合と比較して良好で
あることが知られている。これは例えば、Science and
Technology of Welding and Joining 1997 Vol.2 No.5
pp.199-208 "Mechanical properties of welded joints
in thin walled aluminum extrusions"に示されている
(以下、文献4という。)。When the abutting portions are joined by the friction stir welding method, the members to be joined are sufficiently agitated, and the joint having the required quality can be obtained. This is because the contact surface of the members to be welded is parallel to the rotation axis of the rotary tool, that is, the contact surface is oblique at right angles to the rotation direction of the rotary tool, and the rotation of the rotary tool stirs and mixes the contact surface. The mechanical properties in this case are known to be better than in the case of conventional arc welding. This is, for example, Science and
Technology of Welding and Joining 1997 Vol.2 No.5
pp.199-208 "Mechanical properties of welded joints
in thin walled aluminum extrusions "(hereinafter referred to as Reference 4).
【0007】しかし、摩擦攪拌接合方法によって、重ね
接合のように、接合面と回転工具の回転方向が平行な接
合を行う場合は、突き合わせ部のような機械的特性を得
ることは困難である。回転工具と被接合部材との摩擦に
伴う被接合部材の流動は主に回転方向のみである。回転
軸方向にはほとんど攪拌されない。このため、重ね接合
のように、接合面と回転工具の回転方向が平行である場
合は、機械的特性が大きくない。However, when the friction stir welding method is used to perform joining such that the joining surface and the rotational direction of the rotary tool are parallel to each other, such as lap joining, it is difficult to obtain mechanical characteristics such as a butt portion. The flow of the members to be joined due to the friction between the rotary tool and the members to be joined is mainly in the rotational direction. Almost no agitation occurs in the direction of the rotation axis. Therefore, when the joining surface and the rotation direction of the rotary tool are parallel to each other, as in lap joining, the mechanical characteristics are not large.
【0008】これは前記文献1の図4に示されている。
図4の接合部の上下の中央部には水平方向に沿った黒色
の線が認められる。これは接合前の被接合部材の表面に
存在していた酸化皮膜である。被接合部材の表面に存在
していた酸化皮膜が接合後も接合前の状態とほとんど変
化せず、重ね面に存在している。これは回転方向に平行
な重ね面は十分な攪拌が行われないことを示している。
このため、引張り試験を行うと、2つの被接合部材はこ
の重ね面に沿って離れる。つまり、強度が小さい。この
ため、重ね接合は強度部材には採用困難である。This is shown in FIG. 4 of the above document 1.
Black lines along the horizontal direction are observed in the upper and lower central portions of the joint portion in FIG. This is an oxide film existing on the surfaces of the members to be joined before joining. The oxide film existing on the surfaces of the members to be joined remains almost unchanged from the state before joining even after joining and is present on the lap surface. This indicates that sufficient agitation is not performed on the overlapping surface parallel to the rotation direction.
Therefore, when the tensile test is performed, the two members to be joined are separated along the overlapping surface. That is, the strength is low. For this reason, lap joining is difficult to employ for a strength member.
【0009】本発明の目的は、重ね部の摩擦攪拌接合に
おいて高強度の接合が得られるようにすることにある。It is an object of the present invention to obtain high strength welding in friction stir welding of overlapping portions.
【0010】[0010]
【課題を解決するための手段】上記目的は、第1の部材
の一方の端部と第2の部材の他方の端部とを重ね、前記
重ねた面は実質的に水平面に対して傾斜しており、前記
重ねた部分の範囲内に回転工具の軸心を位置させて、前
記回転工具の軸心を該回転工具の移動方向に対して直角
方向に傾斜した状態で、前記第1の部材と前記第2の部
材とを摩擦攪拌接合を行うこと、によって達成できる。The above object is to overlap one end of a first member with the other end of a second member, the overlapped surface being substantially inclined with respect to a horizontal plane. And position the axis of the rotary tool within the overlapped area
The axis of the rotary tool is perpendicular to the moving direction of the rotary tool.
In an inclined direction, to perform friction stir welding with said second member and said first member, the achievable.
【0011】[0011]
【発明の実施の形態】本発明の一実施例を図1から図2
により説明する。この実施例は接合部に引張り荷重が作
用する強度部材として用いられる。2つの部材310、
320は端部を重ねている。部材310の一方の端部と
部材320の他方の端部とを重ね、重ねた部分は部材3
10の他方の端部と部材320の他方の端部との間にあ
る。重ね面310b、320bは傾斜している。重ね面
310b、320bの傾斜角度は例えば4度から10度
である。他の上下の面310c、310d(320c、
320d)は平行で、水平である。部材320の下面3
20dは架台に載せられている。部材310、320は
押し出し形材である。BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the present invention is shown in FIGS.
Will be described. This embodiment is used as a strength member in which a tensile load acts on the joint. Two members 310,
320 has overlapping ends. The one end of the member 310 and the other end of the member 320 are overlapped, and the overlapped portion is the member 3
Between the other end of 10 and the other end of member 320. The overlapping surfaces 310b and 320b are inclined. The inclination angle of the overlapping surfaces 310b and 320b is, for example, 4 degrees to 10 degrees. The other upper and lower surfaces 310c, 310d (320c,
320d) are parallel and horizontal. Lower surface 3 of member 320
20d is mounted on a stand. The members 310 and 320 are extruded frame members.
【0012】この状態において、摩擦攪拌接合装置の回
転工具250を上方から重ね部に挿入した状態で、接合
線に沿って移動させ、摩擦攪拌接合する。回転工具25
0の軸心は鉛直方向(接合部の法線に沿った方向)であ
る。ただし、回転工具250の進行方向に対しては軸心
は公知のように傾斜している。接合線は、図1の紙面に
対して垂直方向にある。重ね面310b、320bは接
合線(接合方向)に対して直角方向にある。重ね面31
0b、320bは2つの部材310、320の端部の間
にあるといえる。回転工具250の移動は部材310、
320に対して相対的に移動させればよい。In this state, the rotary tool 250 of the friction stir welding apparatus is inserted along the joining line from above and friction stir welding is performed along the joining line. Rotating tool 25
The axis center of 0 is the vertical direction (direction along the normal to the joint). However, the axis is inclined with respect to the traveling direction of the rotary tool 250 as is known. The joining line is in the direction perpendicular to the paper surface of FIG. The overlapping surfaces 310b and 320b are perpendicular to the joining line (joining direction). Layer 31
It can be said that 0b and 320b are between the ends of the two members 310 and 320. The movement of the rotary tool 250 is performed by the member 310,
It may be moved relative to 320.
【0013】回転工具250は大径部252とその先端
の小径部251とからなる。小径部251はねじであ
る。小径部251は重ね面310b、320bよりも深
く挿入している。小径部251の先端は下方の部材32
0の下面320d近くまで深く挿入している。大径部2
52の下端は部材310の上面310cよりも若干挿入
されている。The rotary tool 250 comprises a large diameter portion 252 and a small diameter portion 251 at its tip. The small diameter portion 251 is a screw. The small diameter portion 251 is inserted deeper than the overlapping surfaces 310b and 320b. The tip of the small diameter portion 251 has a lower member 32.
It is deeply inserted up to near the bottom surface 320d of 0. Large diameter part 2
The lower end of 52 is slightly inserted from the upper surface 310c of the member 310.
【0014】図2は接合後の状態を示すもので、ハッチ
ングは接合ビード(熱影響部)を示す。接合ビードの大
きさは挿入した回転工具250の外形よりも若干大き
い。これによれば、回転工具250の回転軸は垂直であ
るが、重ね面310b、320bは水平面に対して傾斜
している。このため、重ね面310b、320bは回転
工具250の軸心に対して傾斜しているといえる。この
ため、重ね面310b、320bは回転工具250の回
転方向に対して傾斜することになる。このため、部材3
10、320は重ね面310b、320bの傾斜角度に
応じて攪拌され混合されることになる。つまり、回転工
具250の軸心方向にも混合されることになる。したが
って、接合前に酸化皮膜があったとしても、良好に混合
される。このため、部材310、320を左右に引張っ
ても高強度の接合が得られる。よって、部材310、3
20を左右に引張る強度部材として使用できるものであ
る。FIG. 2 shows the state after joining, and the hatching shows the joining bead (heat-affected zone). The size of the weld bead is slightly larger than the outer shape of the inserted rotary tool 250. According to this, the rotation axis of the rotary tool 250 is vertical, but the overlapping surfaces 310b and 320b are inclined with respect to the horizontal plane. Therefore, it can be said that the overlapping surfaces 310b and 320b are inclined with respect to the axis of the rotary tool 250. Therefore, the overlapping surfaces 310b and 320b are inclined with respect to the rotation direction of the rotary tool 250. Therefore, the member 3
10, 320 are agitated and mixed according to the inclination angle of the overlapping surfaces 310b, 320b. That is, the rotary tool 250 is also mixed in the axial direction. Therefore, even if there is an oxide film before joining, they are mixed well. Therefore, even if the members 310 and 320 are pulled left and right, high-strength bonding can be obtained. Therefore, the members 310, 3
It can be used as a strength member that pulls 20 to the left and right.
【0015】[0015]
【課題を解決するための手段】上記目的は、第1の部材
の一方の端部と第2の部材の他方の端部とを重ね、前記
重ねた面は実質的に水平面に対して傾斜しており、前記
重ねた部分の範囲内に回転工具の軸心を位置させて、前
記回転工具の軸心を実質的に鉛直方向であって、かつ、
該回転工具の進行方向に対して傾斜した状態で、前記第
1の部材と前記第2の部材とを摩擦攪拌接合を行うこ
と、によって達成できる。The above object is to overlap one end of a first member with the other end of a second member, the overlapped surface being substantially inclined with respect to a horizontal plane. The axis of the rotary tool is located within the range of the overlapped portion, the axis of the rotary tool is substantially vertical, and
This can be achieved by friction stir welding the first member and the second member in a state of being inclined with respect to the traveling direction of the rotary tool .
【0016】凸部330eは部材330の板部の端部に
おいて、板部の上面の延長線上から厚さt1、t2の突
出量を有する。板部の端部および凸部330eのt1部
の端部は板部に対して実質的の直交している。板部の端
部および凸部330eのt1部の端部は実質的に同一面
にある。凸部330eの上面は傾斜している。すなわ
ち、凸部330eの上面は回転工具250の軸心に直交
している。これによれば、部材330において不要な部
分を少なくできる。図4においてハッチングの接合ビー
ドは傾斜している。The convex portion 330e has a protrusion amount of thickness t1 and t2 from the extension line of the upper surface of the plate portion at the end of the plate portion of the member 330. The end of the plate and the end of the t1 portion of the protrusion 330e are substantially orthogonal to the plate. The end of the plate portion and the end of the t1 portion of the protrusion 330e are substantially on the same plane. The upper surface of the protrusion 330e is inclined. That is, the upper surface of the protrusion 330e is orthogonal to the axis of the rotary tool 250. According to this, the unnecessary portion of the member 330 can be reduced. In FIG. 4, the hatched joining beads are inclined.
【0017】図5から図8によって、本発明を鉄道車両
の車体に適用した実施例を説明する。以下の説明におい
て、図5に記載のない部品番号を使用することがある。
その場合はその部品番号から10を減算した部品番号が
右半分の部品番号の部品に相当する。図5は図6の要部
拡大図、図6は図7の要部拡大図、図7は図8の側構体
の要部の縦断面図である。An embodiment in which the present invention is applied to a vehicle body of a railway vehicle will be described with reference to FIGS. In the following description, part numbers not shown in FIG. 5 may be used.
In this case, the part number obtained by subtracting 10 from the part number corresponds to the right half part number. 5 is an enlarged view of a main part of FIG. 6, FIG. 6 is an enlarged view of a main part of FIG. 7, and FIG. 7 is a vertical cross-sectional view of the main part of the side structure of FIG.
【0018】車体200は、側面を構成する側構体20
1、屋根を構成する屋根構体202、床を構成する台枠
203、長手方向の端部を構成する妻構体204からな
る。側構体201、屋根構体202、台枠203は、そ
れぞれ複数の押し出し形材を接合して構成している。押
し出し形材の長手方向を車体の長手方向にしている。押
し出し形材はアルミニウム合金製の中空形材である。側
構体201を構成する中空形材10、20の構成および
接合方法について説明する。他の箇所、他の構体も同様
である。The vehicle body 200 has a side structure 20 constituting a side surface.
1. A roof structure 202 that forms a roof, an underframe 203 that forms a floor, and a gable structure 204 that forms an end in the longitudinal direction. The side structure 201, the roof structure 202, and the underframe 203 are each configured by joining a plurality of extruded frame members. The longitudinal direction of the extruded frame member is the longitudinal direction of the vehicle body. The extruded profile is a hollow profile made of aluminum alloy. The configuration and joining method of the hollow frame members 10 and 20 that form the side structure 201 will be described. The same applies to other parts and other structures.
【0019】中空形材10、20は二枚の面板11、1
2、21、22とトラス状に配置した複数のリブ13、
23からなる。二枚の面板11、12(21、22)は
実質的に平行である。リブ13、23によるトラスのピ
ッチは同一である。トラスはリブ13、23、面板1
1、12、21、22の板厚の中心線によって構成され
る。頂点は面板11、12、21、22側にある。車内
側のトラスの頂点付近には機器を取り付けるためのレー
ル19、29を一体に設けている。レール19、29は
L状の2つの部材からなる。レールは内装板や椅子等の
機器の取り付け座になる。The hollow frame members 10 and 20 are two face plates 11 and 1, respectively.
2, 21, 22 and a plurality of ribs 13 arranged in a truss shape,
It consists of 23. The two face plates 11, 12 (21, 22) are substantially parallel. The pitch of the truss by the ribs 13 and 23 is the same. The truss has ribs 13 and 23 and face plate 1
It is constituted by the center lines of the plate thicknesses of 1, 12, 21, and 22. The vertices are on the side of the face plates 11, 12, 21, 22. Rails 19 and 29 for mounting devices are integrally provided near the top of the truss inside the vehicle. The rails 19 and 29 are composed of two L-shaped members. The rail serves as a seat for mounting equipment such as interior boards and chairs.
【0020】車体の外面側に位置する面板12、22の
端部は車内側の面板11、21の端部よりも隣接する中
空形材20、10側に突出している。この突出した面板
を12b、22bと呼ぶ。面板12b、22bの端部同
士を突き合わせて摩擦攪拌接合している。突き合わせ部
の隙間が小さくなるように突き合わせている。面板12
b、22bの板厚は他の部分の面板12、22の板厚よ
りも厚い。中空形材10、20は面板12、22を下方
にしてベッド40に載っている。面板11、21側を上
方にしている。上方から回転工具250を接合部に挿入
して摩擦攪拌接合をする。車内側から摩擦攪拌接合する
と言える。面板12b、22bの端部には車内側(すな
わち面板11、21側)に突出する凸部16、26があ
る。凸部16、26の幅高さは実質的に同一である。The end portions of the face plates 12 and 22 located on the outer surface side of the vehicle body project toward the adjacent hollow shape members 20 and 10 side from the end portions of the face plates 11 and 21 inside the vehicle. The protruding face plates are referred to as 12b and 22b. The end portions of the face plates 12b and 22b are butted against each other and friction stir welding is performed. Butts are made so that the gap between the butted portions is small. Face plate 12
The plate thicknesses of b and 22b are thicker than the plate thicknesses of the face plates 12 and 22 of the other portions. The hollow members 10 and 20 are mounted on the bed 40 with the face plates 12 and 22 facing downward. The face plates 11 and 21 side is upward. The rotary tool 250 is inserted into the joint from above and friction stir welding is performed. It can be said that friction stir welding is performed from the inside of the car. At the end portions of the face plates 12b and 22b, there are convex portions 16 and 26 that project to the inside of the vehicle (that is, the face plates 11 and 21 side). The width heights of the protrusions 16 and 26 are substantially the same.
【0021】車内側の面板11の端部と面板21との端
部との間は接続材30を介して接合している。接続材3
0の端部はトラスの頂点に設けた座27(17)に載っ
ている(重なっている。)。座27(17)は重ね面に
なる。図1と同様に傾斜している。座27(17)は、
リブ23A(13A)とリブ23B(13B)との交点
にある。座27(17)の幅の中央に前記交点がある。
つまり、端部のトラスの頂点は座27(17)の幅の中
央部にある。座27(17)の幅は接続材30の凸部3
5の幅と同様である。座27(17)は面板21(1
1)の外面よりも凹んでいる。座27(17)は中空形
材の厚さ方向の外側、幅方向の端部側に開口している。
面板21(11)の端部27b(17b)は接続材30
とのアーク溶接用の開先として傾斜している。The end portion of the face plate 11 and the end portion of the face plate 21 on the inside of the vehicle are joined via a connecting member 30. Connection material 3
The end of 0 rests (overlaps) on the seat 27 (17) at the top of the truss. The seat 27 (17) becomes a stacking surface. It is inclined like FIG. The seat 27 (17) is
It is located at the intersection of the rib 23A (13A) and the rib 23B (13B). The intersection is at the center of the width of the seat 27 (17).
That is, the apex of the truss at the end is at the center of the width of the seat 27 (17). The width of the seat 27 (17) is the convex portion 3 of the connecting material 30.
It is similar to the width of 5. The seat 27 (17) is attached to the face plate 21 (1
It is recessed from the outer surface of 1). The seat 27 (17) is open to the outside in the thickness direction of the hollow shape member and to the end portion side in the width direction.
The end portion 27b (17b) of the face plate 21 (11) is a connecting member 30.
It is inclined as a groove for arc welding with.
【0022】接続材30は面板11、21の表面があた
かも連続しているようにすることを目的として配置して
いる。このため、座27(17)は面板21(11)の
外面に対して面板21(11)の板厚だけ凹んでいる。
接続材30の両端35を除いた中央は板31であり、そ
の板厚は面板21(11)の板厚と実質的に同一であ
る。The connecting member 30 is arranged for the purpose of making the surfaces of the face plates 11 and 21 continuous. Therefore, the seat 27 (17) is recessed from the outer surface of the face plate 21 (11) by the thickness of the face plate 21 (11).
The center of the connecting member 30 excluding both ends 35 is a plate 31, and the plate thickness thereof is substantially the same as the plate thickness of the face plate 21 (11).
【0023】接続材30の両端には上方に突出する凸部
35がある。凸部の上面にはV字状の溝36がある。溝
36は凸部35の幅の中心にある。凸部35の幅は回転
工具250の大径部252の径よりも大きい。溝36は
回転工具250を導くための位置検出用の対象物とな
る。レーザセンサで溝36を検出し、回転工具250の
軸心が溝36に一致するようにしている。溝36の延長
線上すなわち回転工具250の軸心上に、2つのリブ1
3A(23A)と13B(23B)の交点がある。At both ends of the connecting member 30, there are convex portions 35 protruding upward. There is a V-shaped groove 36 on the upper surface of the convex portion. The groove 36 is at the center of the width of the convex portion 35. The width of the convex portion 35 is larger than the diameter of the large diameter portion 252 of the rotary tool 250. The groove 36 serves as an object for position detection for guiding the rotary tool 250. The groove 36 is detected by the laser sensor so that the axis of the rotary tool 250 is aligned with the groove 36. On the extension line of the groove 36, that is, on the axis of the rotary tool 250, the two ribs 1
There is an intersection of 3A (23A) and 13B (23B).
【0024】接続材30の両端の下面は座27(17)
に載る傾斜面になっている。接続材30と座17、27
の重ね面は、平面で起伏がなく、両者は接触している。
接続材30の幅は二つの中空形材10、20の面板1
1、21の間隔よりも小さい。接続材30は中空形材1
0、20と同一材質の押し出し形材である。接続材30
の長さは中空形材10、20の長さと同一である。The lower surfaces of both ends of the connecting member 30 are seats 27 (17).
It has an inclined surface to be mounted on. Connecting material 30 and seats 17, 27
The overlapping surface of is flat and has no undulations, and both are in contact with each other.
The width of the connecting member 30 is the face plate 1 of the two hollow frame members 10 and 20.
It is smaller than the interval of 1 and 21. The connecting member 30 is a hollow frame member 1
It is an extruded shape member made of the same material as 0 and 20. Connection material 30
Is the same as the length of the hollow frame members 10 and 20.
【0025】面板11の端部から面板21の端部までの
距離P(中空形材10の端部のトラスの頂点から中空形
材20の端部のトラスの頂点までの距離)は他の位置の
トラスのピッチPと同一である。The distance P from the end of the face plate 11 to the end of the face plate 21 (the distance from the apex of the truss at the end of the hollow frame 10 to the apex of the truss at the end of the hollow frame 20) is at another position. It is the same as the pitch P of the truss.
【0026】中空形材のトラスは、面板11、12、2
1、22側を頂点としたとき、2等辺3角形である。し
かし、中空形材10、20の端部のトラスは2等辺3角
形ではない。中空形材10、20の端部のトラスを構成
するリブ13A、23Aが鉛直線に対して成す角度はθ
1である。前記端部のトラスを構成するリブ13A、2
3Bが鉛直線に対して成す角度はθ2である。θ1<θ
2である。The hollow-shaped truss is composed of face plates 11, 12, 2
It is an isosceles triangle when the 1 and 22 sides are the vertices. However, the trusses at the ends of the hollow frame members 10 and 20 are not isosceles triangles. The angle formed by the ribs 13A and 23A forming the truss at the ends of the hollow frame members 10 and 20 with respect to the vertical line is θ.
It is 1. Ribs 13A, 2 which form the truss at the end
The angle formed by 3B with respect to the vertical line is θ2. θ1 <θ
It is 2.
【0027】このため、リブ13A(23A)は面板1
2(22)の途中に接続している。リブ13Aと面板1
2との接続部と、リブ23Aと面板22との接続部との
間には摩擦攪拌接合装置を挿入する空間が生じる。リブ
13A、23Aはリブ13B、23Aに比べて立ってい
る(θ1が小さい)ので、リブ13A、23Aの板厚は
リブ13B、23Aの板厚よりも大きい。リブ13B、
23Bの板厚は他のリブ13の板厚よりも大きい。リブ
13A、13B、13と面板11、12、21、22と
の接続部は円弧状である。また、接続部の厚さは強度の
観点から定めている。Therefore, the rib 13A (23A) is attached to the face plate 1
It is connected in the middle of 2 (22). Rib 13A and face plate 1
A space for inserting the friction stir welding device is formed between the connecting portion with the rib 2A and the connecting portion with the rib 23A and the face plate 22. Since the ribs 13A and 23A are higher than the ribs 13B and 23A (θ1 is small), the plate thickness of the ribs 13A and 23A is larger than the plate thickness of the ribs 13B and 23A. Rib 13B,
The plate thickness of 23B is larger than the plate thickness of the other ribs 13. The connecting portions between the ribs 13A, 13B, 13 and the face plates 11, 12, 21, 22 are arc-shaped. Further, the thickness of the connection portion is determined from the viewpoint of strength.
【0028】この構造体の製作方法を説明する。中空形
材10、20はベッド240に載せられ、固定されてい
る。面板12b、22bの端部の突き合わせ部は接触し
ているか近接している。面板12、22の突き合わせ部
の凸部16、26を上方からアーク溶接によって仮止め
する。仮止め溶接は間欠的である。面板12b、22b
の突き合わせ部が載るベッド240の上面は平らであ
る。面板12b、22bの突き合わせ部付近、リブ13
A、23Aと面板12b、22bとの交点付近、リブ1
3B、23Bと面板12、22との交点付近の三者は同
一高さのベッド240に載っている。A method of manufacturing this structure will be described. The hollow frame members 10 and 20 are placed and fixed on a bed 240. The abutting portions of the end portions of the face plates 12b and 22b are in contact with or close to each other. The convex portions 16 and 26 of the abutting portions of the face plates 12 and 22 are temporarily fixed from above by arc welding. Temporary fixing welding is intermittent. Face plates 12b, 22b
The upper surface of the bed 240 on which the butting portion of the bed rests is flat. The ribs 13 near the abutting portions of the face plates 12b and 22b
Ribs 1 near the intersections of A, 23A and face plates 12b, 22b
The three members near the intersections of 3B and 23B and the face plates 12 and 22 are mounted on the bed 240 having the same height.
【0029】この状態において、摩擦攪拌接合装置の回
転工具250を上方から凸部16、26の突き合わせ部
に挿入した状態で、接合線に沿って移動させ、摩擦攪拌
接合する。回転工具250の軸心は鉛直方向(接合部の
法線に沿った方向)である。ただし、回転工具250の
進行方向に対しては軸心は公知のように傾斜している。
2つの凸部16、26の突き合わせ部を前記センサで検
出して突き合わせ部の隙間の位置を求め、この隙間に回
転工具250の軸心を位置させる。In this state, the rotary tool 250 of the friction stir welding apparatus is moved along the welding line while being inserted into the abutting portion of the convex portions 16 and 26 from above, and friction stir welding is performed. The axis of the rotary tool 250 is in the vertical direction (direction along the normal to the joint). However, the axis is inclined with respect to the traveling direction of the rotary tool 250 as is known.
The abutting portion of the two convex portions 16 and 26 is detected by the sensor to find the position of the gap between the abutting portions, and the axis of the rotary tool 250 is positioned in this gap.
【0030】回転工具250の小径部251の先端は面
板12b、22bの下面の近傍に位置している。大径部
252の下端は凸部16、26の頂と面板12b、22
bの車内側の面(面板11、21側の面)との間に位置
している。大径部252の径は2つの凸部16、26か
らなる幅よりも小さい。The tip of the small diameter portion 251 of the rotary tool 250 is located near the lower surfaces of the face plates 12b and 22b. The lower end of the large diameter portion 252 has the tops of the convex portions 16 and 26 and the face plates 12b and 22.
It is located between the inner surface of b and the surface on the side of the face plates 11 and 21. The diameter of the large diameter portion 252 is smaller than the width formed by the two convex portions 16 and 26.
【0031】この摩擦攪拌接合によって、面板12b、
22bの突き合わせ部の隙間は埋められて、接合され
る。突き合わせ部の外面側(車外側)は平らに接合され
る。面板12b、22bの外面側には接合線の凹部はな
い。凸部16、26の上面は回転工具250の大径部2
52によって凹状になる。凹部の両側には未接合部があ
る。By this friction stir welding, the face plate 12b,
The gap of the abutting portion of 22b is filled and joined. The outer surface side (outside the vehicle) of the butted portion is flatly joined. There is no concave portion of the joining line on the outer surface side of the face plates 12b and 22b. The upper surfaces of the convex portions 16 and 26 are the large diameter portion 2 of the rotary tool 250.
It becomes concave by 52. There are unbonded parts on both sides of the recess.
【0032】次に、面板11、21の座17、27に接
続材30を載せる。接続材30の端部は座27の面で接
触している。次に、接続材30の端部を面板11、21
に対してそれぞれアーク溶接によって仮止めする。仮止
め溶接は間欠的である。次に、面板12b、22bの突
き合わせ部の摩擦攪拌接合に用いた摩擦攪拌接合装置を
用いて接続材30と座17、27との接合を行う。回転
工具250を上方から接続材30と座27を重ねた部分
に挿入した状態で、接合線に沿って移動させ、摩擦攪拌
接合する。回転工具250は、重ね面に17、27に対
して、図3の実施例のように傾斜している。Next, the connecting member 30 is placed on the seats 17 and 27 of the face plates 11 and 21. The ends of the connecting members 30 are in contact with each other on the surface of the seat 27. Next, the end portions of the connecting material 30 are attached to the face plates 11 and 21.
Each of them is temporarily fixed by arc welding. Temporary fixing welding is intermittent. Next, the connecting member 30 and the seats 17, 27 are joined using the friction stir welding apparatus used for the friction stir welding of the abutting portions of the face plates 12b, 22b. With the rotary tool 250 inserted from above into the portion where the connecting member 30 and the seat 27 are overlapped, the rotary tool 250 is moved along the joining line to perform friction stir welding. The rotary tool 250 is inclined with respect to the overlapping surfaces 17 and 27 as in the embodiment of FIG.
【0033】凸部35の幅は回転工具250の大径部2
52の径よりも大きい。凸部35の幅の中心に溝36が
ある。回転工具250の回転軸心を溝36に一致させ
る。このため、回転工具250の位置は、接続材30の
端部に摩擦攪拌接合されない部分を有する内側の位置で
ある。また、回転工具250の小径部251の先端は座
17、27に深く挿入している。これによって、重ね接
合が行われる。大径部252の下端は非凸部の接続材3
0の上面と凸部35の頂との間にある。The width of the convex portion 35 is the large diameter portion 2 of the rotary tool 250.
Larger than the diameter of 52. There is a groove 36 at the center of the width of the convex portion 35. The axis of rotation of the rotary tool 250 is aligned with the groove 36. Therefore, the position of the rotary tool 250 is an inner position having a portion that is not friction stir welded to the end portion of the connecting material 30. Further, the tip of the small diameter portion 251 of the rotary tool 250 is deeply inserted into the seats 17 and 27. As a result, lap joining is performed. The lower end of the large diameter portion 252 has a non-convex connecting member 3
It is between the upper surface of 0 and the top of the convex portion 35.
【0034】凸部35の上面は回転工具250の大径部
252によって凹状になる。凹部の両側には未接合部が
ある。摩擦攪拌接合装置の前記センサは溝36を検出し
て、溝36に沿って回転工具250を移動させる。この
ため、面板12b、22bの突き合わせ部を接合する際
の回転工具250とセンサとの位置関係をそのまま利用
できる。その他の回転工具と接合部との関係は前記のと
おりである。The upper surface of the convex portion 35 is concaved by the large diameter portion 252 of the rotary tool 250. There are unbonded parts on both sides of the recess. The sensor of the friction stir welding apparatus detects the groove 36 and moves the rotary tool 250 along the groove 36. Therefore, the positional relationship between the rotary tool 250 and the sensor when joining the abutting portions of the face plates 12b and 22b can be used as they are. The relationship between the other rotary tools and the joint is as described above.
【0035】回転工具250の軸心は2つのリブ13
A、13B(23A、23B)によるトラスの頂点また
はその近傍を通る鉛直線上にある。偏芯に対しては、リ
ブ13A、13B(23A、23B)の板厚の増大、リ
ブと面板とを接続する円弧の形状、接続部の厚さ、座1
7、27の厚さ等によって対応する。接続材30の接合
は座17との接合を行い、次に座27との接合を行う。
2つの回転工具を用いれば、接続材30の両端の接合を
同時にできる。The axis of the rotary tool 250 has two ribs 13
A, 13B (23A, 23B) is on the vertical line passing through the vertex of the truss or its vicinity. With respect to the eccentricity, the plate thickness of the ribs 13A and 13B (23A and 23B) is increased, the shape of the arc connecting the rib and the face plate, the thickness of the connecting portion, and the seat 1
It corresponds by the thickness of 7, 27 and the like. The connection member 30 is joined to the seat 17 and then to the seat 27.
If two rotary tools are used, both ends of the connecting material 30 can be joined at the same time.
【0036】これによれば、接続材30の接合は重ね接
合であり、突き合わせ接合ではない。このため、二つの
中空形材10、20の製作公差、二つの中空形材の配置
の間隔の公差により、二つの中空形材10、20の隙間
が変わっても接続材30を接合できるものである。特
に、多数の中空形材を並べて一度の接合する場合は誤差
が大きくなる。この場合、重ね接合であるので、容易に
接合できるものである。According to this, the joining of the connecting members 30 is lap joining, not butt joining. Therefore, the connection member 30 can be joined even if the gap between the two hollow frame members 10 and 20 changes due to the manufacturing tolerance of the two hollow frame members 10 and 20, and the tolerance of the distance between the two hollow frame members. is there. In particular, when a large number of hollow members are arranged and joined at one time, the error becomes large. In this case, since they are lap joints, they can be easily joined.
【0037】また、中空形材の両面の接合を片面側から
行うことができる。このため、一方の面を接合した構造
体を反転させる必要がない。したがって、安価に、また
高精度に製作できるものである。Further, both sides of the hollow profile can be joined from one side. Therefore, it is not necessary to invert the structure having the one surface joined. Therefore, it can be manufactured at low cost and with high precision.
【0038】また、面板12b、22bの接合部の外面
は平らに接合できる。凸部16、26、35は構造体内
や車内側にあり、平滑な面が要求される箇所(外面側、
車外側)にはない。また、車外側には回転工具によって
切削されて生じる凹部もない。このため、凸部の切削等
を不要にでき、車体を安価に製作できるものである。Further, the outer surfaces of the joint portions of the face plates 12b and 22b can be joined flat. The convex portions 16, 26, and 35 are inside the structure or inside the vehicle and are required to have a smooth surface (outer surface side,
Outside the car). Also, there is no recess on the outside of the vehicle that is formed by cutting with a rotary tool. Therefore, it is possible to eliminate the need for cutting the convex portion and the like, and the vehicle body can be manufactured at low cost.
【0039】また、接続材30の接合の際の挿入力は、
回転工具250の軸心に向けて配置した2つのリブ13
A、13B(23A、23B)によって支えられる。こ
のため、リブ13A、13B(23A、23B)の曲が
りを抑制できる。13A、13B(23A、23B)の
板厚を薄くでき、軽量にできるものである。もちろん面
板11、21、30の曲がりも抑制できる。リブ13
A、13B(23A、23B)を支えるベッド240は
同一高さにあるので、面板12、22の曲がりも防止で
きる。Further, the insertion force at the time of joining the connecting material 30 is
Two ribs 13 arranged toward the axis of the rotary tool 250
It is supported by A and 13B (23A and 23B). Therefore, bending of the ribs 13A and 13B (23A and 23B) can be suppressed. The plate thickness of 13A, 13B (23A, 23B) can be made thin and can be made light. Of course, the bending of the face plates 11, 21, 30 can also be suppressed. Rib 13
Since the beds 240 supporting A and 13B (23A and 23B) are at the same height, it is possible to prevent the face plates 12 and 22 from bending.
【0040】また、接合後、構造体として用いる場合を
考えると、実質的にすべてをトラス構造で構成したこと
になる。中空形材10、20の接合部もトラス構造であ
る。このため、面外曲げ剛性が向上し、軽量にできるも
のである。なお、接続材30、リブ13A、23Aの間
の面板12b、22b、リブ13A、23Aは実質的に
トラスを構成するので、この部分が特に弱いことはな
い。ただし、板厚は検討すべきである。Considering the case of using as a structure after joining, it means that substantially all of them are constituted by a truss structure. The joint between the hollow frame members 10 and 20 also has a truss structure. Therefore, the out-of-plane bending rigidity is improved and the weight can be reduced. Since the connecting members 30, the face plates 12b and 22b between the ribs 13A and 23A, and the ribs 13A and 23A substantially form a truss, this portion is not particularly weak. However, the plate thickness should be considered.
【0041】また、リブ13A、23Aの傾斜角θ1を
リブ13B、23Bの傾斜角θ2よりも大きくすること
ができる。これによれば、接続材30の幅が大きくな
り、その板厚を厚くする必要が生じ、重量が大きくな
る。しかし、摩擦攪拌接合装置の挿入の為に大きな開口
が必要な場合に利用できる。リブの傾斜角θ1、θ2を
同一にして、2等辺3角形にすることができる。これに
よればリブ13A、13B(23A、23B)の板厚を
同一にできる。また、リブ13A、23Aの板厚を図5
の場合よりも薄くできよう。ただし、この2等辺3角形
のトラスの大きさを他の個所のトラスの大きさと同一に
すれば、接続材30の幅は大きくなる。Further, the inclination angle θ1 of the ribs 13A and 23A can be made larger than the inclination angle θ2 of the ribs 13B and 23B. According to this, the width of the connecting member 30 becomes large, it becomes necessary to increase the plate thickness, and the weight becomes large. However, it can be used when a large opening is required for inserting the friction stir welding device. The ribs may have the same inclination angles θ1 and θ2 to form an isosceles triangle. This allows the ribs 13A and 13B (23A and 23B) to have the same plate thickness. In addition, the thickness of the ribs 13A and 23A is shown in FIG.
It could be thinner than the case. However, if the size of the isosceles triangle truss is the same as the size of the truss at other places, the width of the connecting member 30 becomes large.
【0042】しかし、2つのリブ13A、13B(23
A、23B)の傾斜角θ1、θ2を図5の傾斜角θ1と
すれば、端部のトラスを小さい2等辺3角形にすること
ができる。この端部のトラスの底辺の大きさは他の個所
のトラスの底辺の大きさよりも小さい。これによれば、
リブ13B(23B)と面板12(22)との交点から
中空形材10(20)の端部までの距離を小さくでき
る。したがって、接続材30の幅を図5の接続材30の
幅と同様にできる。However, the two ribs 13A and 13B (23
If the inclination angles θ1 and θ2 of (A, 23B) are the inclination angles θ1 in FIG. 5, the truss at the end can be made into a small isosceles triangle. The size of the base of the truss at this end is smaller than the size of the base of the trusses at other locations. According to this
The distance from the intersection of the rib 13B (23B) and the face plate 12 (22) to the end of the hollow frame member 10 (20) can be reduced. Therefore, the width of the connecting material 30 can be made similar to the width of the connecting material 30 of FIG.
【0043】接続材30の部分を含めて全てのトラスの
ピッチは同一である。端部のトラスを除き、トラスの大
きさは同一である。このため、中空形材の設計を標準化
できる。2つのリブ13A、13B(23A、23B)
による頂点は面板21、31よりも外面側にあってもよ
い。また、2つのリブ13A、13B(23A、23
B)が成す角度の中間に向けた角度で回転工具250を
挿入してもよい。この場合の軸心はトラスの頂点に向け
る。The pitch of all the trusses, including the connecting material 30, is the same. The size of the truss is the same except for the truss at the end. Therefore, the design of the hollow frame can be standardized. Two ribs 13A, 13B (23A, 23B)
The apex may be on the outer surface side of the face plates 21 and 31. In addition, the two ribs 13A and 13B (23A and 23B
The rotary tool 250 may be inserted at an angle toward the middle of the angle formed by B). The axis in this case should be directed to the top of the truss.
【0044】上記実施例では接続材30の接合は摩擦攪
拌接合で行っているが、アーク溶接との併用で行っても
よい。上記摩擦攪拌接合は重ね接合であるので、突き合
わせ接合に比べて、接合強度が弱い。このため、接続材
30の端部と面板21、31との突き合わせ部をアーク
溶接する。アーク溶接の箇所は例えば強度が弱い領域で
ある。また、アーク溶接を補修用として使用することが
できる。In the above embodiment, the joining material 30 is joined by friction stir welding, but it may be joined together with arc welding. Since the friction stir welding is lap welding, the welding strength is weaker than that of butt welding. For this reason, the abutting portions of the end portions of the connecting material 30 and the face plates 21, 31 are arc-welded. The location of arc welding is, for example, a region where the strength is weak. Also, arc welding can be used for repair.
【0045】上記実施例では接続材30の両端を摩擦攪
拌接合で接合しているが、一端を摩擦攪拌接合、他端を
アーク溶接で接合するようにしてもよい。アーク溶接の
方が歪みが大きいので、先に摩擦攪拌接合を行う。Although both ends of the connecting member 30 are joined by friction stir welding in the above embodiment, one end may be joined by friction stir welding and the other end may be joined by arc welding. Since arc welding has larger distortion, friction stir welding is performed first.
【0046】上記実施例は面板11、12、21、22
が平行であったが、一方の面板が他方の面板に対して傾
斜している場合にも対応できるものである。リブ13
A、13B(23A、23B)の板厚において、面板1
1、21側の板厚を面板12、22側よりも厚くする。
面板11、21側を厚くするのは、接合時に高温になり
やすいからである。In the above embodiment, the face plates 11, 12, 21, 22 are used.
Are parallel to each other, but can also be applied to the case where one face plate is inclined with respect to the other face plate. Rib 13
A, 13B (23A, 23B) plate thickness, face plate 1
The plate thickness on the side of 1 and 21 is made thicker than that on the side of face plates 12 and 22.
The reason why the face plates 11 and 21 are thickened is that the temperature tends to be high during joining.
【0047】上記実施例では接合部の面板が水平であっ
たが、接合部の面板の法線が傾斜していても同様に接合
できる。これは側構体201の端部の接合線に生じ易
い。この場合の回転体の軸心は面板の法線に沿ってい
る。In the above-mentioned embodiment, the face plate of the joint portion is horizontal, but the face plate of the joint portion can be similarly joined even if the normal line is inclined. This is likely to occur at the joining line at the end of the side structure 201. In this case, the axis of the rotating body is along the normal to the face plate.
【0048】図9の実施例を説明する。中空形材10C
の端部のリブ13Cは面板11C、12Cに直交してい
る(面板の法線に沿っている。)。面板11Cとリブ1
3Cとの接続部には前記と同様な凹部の座17Cがあ
る。17Cbは座17Cに接続した突出片で、接続材1
30が載る。リブ13Cの板厚の範囲内に回転工具25
0の回転軸心、溝36がある。このものでは摩擦攪拌接
合時の挿入力をリブで支える。突出片17Cbを含めた
座17Cの幅の中央部にリブ13Cの板厚の中心があ
る。突出片17Cbを含めた座17Cの幅は凸部35の
幅と同様である。他方の中空形材の端部のリブもこのよ
うにできる。The embodiment shown in FIG. 9 will be described. Hollow profile 10C
The rib 13C at the end of is orthogonal to the face plates 11C and 12C (along the normal to the face plate). Face plate 11C and rib 1
At the connecting portion with 3C, there is a recess seat 17C similar to the above. 17Cb is a protruding piece connected to the seat 17C, and is a connecting member 1
30 is listed. Rotating tool 25 within the plate thickness range of rib 13C
There is a 0 axis of rotation and a groove 36. With this type, ribs support the insertion force during friction stir welding. The center of the plate thickness of the rib 13C is at the center of the width of the seat 17C including the protruding piece 17Cb. The width of the seat 17C including the protruding piece 17Cb is similar to the width of the convex portion 35. The ribs at the ends of the other hollow profile can also be made in this way.
【0049】図5、図9の実施例において、図3の実施
例のように、重ね面を水平とし、回転工具250の回転
軸心を傾斜させることができる。接続材30、130の
両端に傾斜した凸部を設ける。接続材30、130と中
空形材10、10C、20との接続部は面板11、11
C、21に対して凹んだ座17、17C、27に重ねて
いるが、面板11、11、21に重ねてもよい。In the embodiment shown in FIGS. 5 and 9, as in the embodiment shown in FIG. 3, the overlapping surface can be horizontal and the rotation axis of the rotary tool 250 can be inclined. Inclined convex portions are provided at both ends of the connecting members 30 and 130. The connecting portions between the connecting members 30, 130 and the hollow shape members 10, 10C, 20 are face plates 11, 11
Although it is stacked on the seats 17, 17C, 27 which are recessed with respect to C, 21, it may be stacked on the face plates 11, 11, 21.
【0050】本発明の技術的範囲は、特許請求の範囲の
各請求項に記載の文言あるいは課題を解決するための手
段の項に記載の文言に限定されず、当業者がそれから容
易に置き換えられる範囲にも及ぶものである。The technical scope of the present invention is not limited to the wording described in each claim of the claims or the wording described in the section of means for solving a problem, and a person skilled in the art can easily replace it. It extends to a range.
【0051】[0051]
【発明の効果】本発明によれば、重ね部の摩擦攪拌接合
において高強度の接合が得られるものである。According to the present invention, high-strength welding can be obtained in friction stir welding of overlapping portions.
【図1】本発明の一実施例の接合部の縦断面図。FIG. 1 is a vertical cross-sectional view of a joint portion according to an embodiment of the present invention.
【図2】図1の接合後の縦断面図。FIG. 2 is a vertical cross-sectional view after joining in FIG.
【図3】本発明の他の実施例の接合部の縦断面図。FIG. 3 is a vertical cross-sectional view of a joint portion according to another embodiment of the present invention.
【図4】図3の接合後の縦断面図。FIG. 4 is a vertical cross-sectional view after joining in FIG.
【図5】本発明の一実施例の接合部の要部の縦断面図。FIG. 5 is a vertical cross-sectional view of a main portion of a joint portion according to an embodiment of the present invention.
【図6】本発明の一実施例の接合部の縦断面図。FIG. 6 is a vertical sectional view of a joint portion according to an embodiment of the present invention.
【図7】本発明の一実施例の一組の中空形材の縦断面
図。FIG. 7 is a vertical sectional view of a pair of hollow members according to an embodiment of the present invention.
【図8】鉄道車両の車体の斜視図。FIG. 8 is a perspective view of a vehicle body of a railway vehicle.
【図9】本発明の他の実施例の要部の縦断面図。FIG. 9 is a vertical cross-sectional view of the essential parts of another embodiment of the present invention.
10、10C、20 中空形材
11、11C、12、11b、12C、21、22、2
2b 面板
13、13A、13B、13C、23、23A、23B
リブ
17、17C、27 座
30 接続材
201 側構体
202 屋根構体
203 台枠
240 ベッド
250 回転工具
310、320、330、340 部材
310b、320b 傾斜面
330e 凸部10, 10C, 20 Hollow frame members 11, 11C, 12, 11b, 12C, 21, 22, 2
2b Face plate 13, 13A, 13B, 13C, 23, 23A, 23B
Ribs 17, 17C, 27 Seat 30 Connection material 201 Side structure 202 Roof structure 203 Underframe 240 Bed 250 Rotating tools 310, 320, 330, 340 Members 310b, 320b Inclined surface 330e Convex portion
Claims (3)
他方の端部とを重ね、 前記重ねた面は実質的に水平面に対して傾斜しており、 前記重ねた部分の範囲内に回転工具の軸心を位置させ
て、前記回転工具の軸心を実質的に鉛直方向であって、
かつ、該回転工具の進行方向に対して傾斜した状態で、
前記第1の部材と前記第2の部材とを摩擦攪拌接合を行
うこと、 を特徴とする摩擦攪拌接合方法。1. One end of the first member and the other end of the second member are overlapped with each other, and the overlapped surface is substantially inclined with respect to a horizontal plane. Positioning the axis of the rotary tool within the range, the axis of the rotary tool is substantially vertical,
And, in a state of being inclined with respect to the traveling direction of the rotary tool ,
Friction stir welding is performed on the first member and the second member by friction stir welding.
他方の端部とを重ね、 前記重ねた面は実質的に水平面に対して水平であり、 前記重ねた部分の範囲内に回転工具の軸心を位置させ
て、前記回転工具の軸心を実質的に鉛直方向に対して傾
斜し、かつ、該回転工具の進行方向に対して傾斜した状
態で、前記第1の部材と前記第2の部材とを摩擦攪拌接
合を行うこと、 を特徴とする摩擦攪拌接合方法。2. The one end of the first member and the other end of the second member are overlapped with each other, the overlapped surface being substantially horizontal with respect to a horizontal plane, and the range of the overlapped portion. With the axis of the rotary tool positioned inside, the axis of the rotary tool is tilted with respect to the vertical direction.
A friction stir welding method, wherein the first member and the second member are friction stir welded in a state of being inclined and inclined with respect to the traveling direction of the rotary tool .
他方の端部とが重ねられて摩擦攪拌接合されており、 前記接合した部分のビードは前記重ねた部分の範囲内に
あり、 前記第1の部材の一方の面を水平状態においたとき、前
記接合した部分の厚さ方向において、該接合した部分の
ビードの幅方向の中心は、前記一方の面に対して傾斜し
ていること、 を特徴とする構造体。3. One end of the first member and the other end of the second member are overlapped and friction stir welded, and the bead of the welded portion is within the range of the overlapped portion. And when one surface of the first member is placed in a horizontal state, in the thickness direction of the joined portion, the center of the bead width direction of the joined portion is inclined with respect to the one surface. A structure characterized by:
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25973899A JP3488401B2 (en) | 1999-09-14 | 1999-09-14 | Friction stir welding method and structure |
TW089109371A TW464576B (en) | 1999-05-28 | 2000-05-16 | A structure body and a manufacturing method of a structure body |
US09/572,984 US6378264B1 (en) | 1999-05-28 | 2000-05-17 | Structure body and method of manufacture thereof |
AU36359/00A AU757971B2 (en) | 1999-05-28 | 2000-05-22 | A structure body and a manufacturing method of a structure body |
KR10-2000-0028594A KR100481786B1 (en) | 1999-05-28 | 2000-05-26 | A structure body and a manufacturing method of a structure body |
EP00304506A EP1057574B1 (en) | 1999-05-28 | 2000-05-26 | A structural body and method of its manufacture |
CNB001176617A CN1165402C (en) | 1999-05-28 | 2000-05-26 | Structural element and making method thereof |
DE60031036T DE60031036T2 (en) | 1999-05-28 | 2000-05-26 | Structural body and method for its production |
EP05007268A EP1568434A1 (en) | 1999-05-28 | 2000-05-26 | A structural body and method of its manufacture |
US10/101,626 US6532712B2 (en) | 1999-05-28 | 2002-03-21 | Structural body and method of manufacture thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25973899A JP3488401B2 (en) | 1999-09-14 | 1999-09-14 | Friction stir welding method and structure |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000055191A Division JP2001079672A (en) | 2000-03-01 | 2000-03-01 | Frictional agitation joining method, and structural body |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2001079671A JP2001079671A (en) | 2001-03-27 |
JP3488401B2 true JP3488401B2 (en) | 2004-01-19 |
Family
ID=17338272
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25973899A Expired - Fee Related JP3488401B2 (en) | 1999-05-28 | 1999-09-14 | Friction stir welding method and structure |
Country Status (1)
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---|---|
JP (1) | JP3488401B2 (en) |
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1999
- 1999-09-14 JP JP25973899A patent/JP3488401B2/en not_active Expired - Fee Related
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JP2001079671A (en) | 2001-03-27 |
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