JP2009012016A - Seam welding machine for bent pipe - Google Patents

Seam welding machine for bent pipe Download PDF

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JP2009012016A
JP2009012016A JP2007174085A JP2007174085A JP2009012016A JP 2009012016 A JP2009012016 A JP 2009012016A JP 2007174085 A JP2007174085 A JP 2007174085A JP 2007174085 A JP2007174085 A JP 2007174085A JP 2009012016 A JP2009012016 A JP 2009012016A
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electrode
roller electrode
supporting
arm
roller
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JP5081510B2 (en
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Kazutoshi Furukawa
一敏 古川
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Aichi Sangyo Co Ltd
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Aichi Sangyo Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
    • B23K11/065—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams
    • B23K11/066—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams of tube sections
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes
    • B23K11/3036—Roller electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seam welding machine for a bent pipe with a structure as simple as possible, which can perform seam welding of the periphery of a joint portion of pipes having a steep curve, a right angle in particular. <P>SOLUTION: The seam welding machine for a bent pipe, which turns an electrode while applying pressure and supplying current using a disk-like roller electrode, is provided with a first roller electrode 4 supported by an arm 8 for supporting a first housing 5 and a first electrode, a second roller electrode 10 set at the same angle of the disk as the angle of the first roller electrode disk, a second housing 10 having its rotary shaft set coinciding with the rotary shaft of the second roller electrode, an arm 13 for supporting the second electrode set in the direction perpendicular to the rotary shaft, and a support plate 11 wherein the rotary shaft of the second roller electrode is set in the second housing to allow the rotary shaft to maintain the center of the disk and to support the arm for supporting the second electrode. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、曲パイプ用シーム溶接機に関する。特に、直角に曲がるパイプの継手部分についてもシーム溶接が可能な、曲パイプ用シーム溶接機に関する。   The present invention relates to a seam welder for bent pipes. In particular, the present invention relates to a seam welding machine for bent pipes, which can perform seam welding even at joints of pipes that bend at right angles.

シーム溶接とは、溶接継手部に大電流を流すことによって発生する抵抗熱によって加熱し、圧力を加えて溶接を行う抵抗溶接の一種であり、ローラ電極を用いて加圧、かつ通電しながら電極を回転させ母体を連続的に溶接する方法である。その種類としては、例えばローラ電極が電極支持のためのアームに対して直角に設けられていて、円筒形の円周継手や、細長い板の長辺継手の溶接に用いる横シーム溶接機と、ローラ電極が電極支持のためのアームに対して平行に設けられていて円筒形の胴継手及び細長い板の短辺継手の溶接に用いる縦シーム溶接機がある。   Seam welding is a type of resistance welding that is heated by resistance heat generated by flowing a large current through the weld joint and that is welded by applying pressure. The electrode is pressed and energized using a roller electrode. This is a method of continuously welding the mother body by rotating. As the type, for example, a roller electrode is provided at right angles to the arm for supporting the electrode, and a horizontal seam welder used for welding a cylindrical circumferential joint or a long side joint of an elongated plate, a roller There is a vertical seam welder in which electrodes are provided parallel to an arm for supporting an electrode and used for welding a cylindrical body joint and a short side joint of an elongated plate.

シーム溶接は、ローラ電極がワークを挟む、という性質上平板の溶接等を素早く大量に行うことが出来る点が長所である。また、本出願人は円形のパイプ等、円形の金属を溶接するための抵抗シーム溶接機を発明し開示している（特許文献１参照）。
特開２０００−２１０７７７号公報 Seam welding is advantageous in that a large amount of welding of flat plates can be performed quickly due to the property that the roller electrode sandwiches the workpiece. Further, the present applicant has invented and disclosed a resistance seam welding machine for welding a circular metal such as a circular pipe (see Patent Document 1).
JP 2000-210777 A

しかしながら、この技術を持ってしても、パイプ−パイプ間の平行でない継手形状に対応することができず、特に角度のきついパイプの継手部分の円周をシーム溶接することは不可能であった。即ち、例えば図１に示されるように、直角パイプの角部分の円周について、これをシーム溶接することは不可能であった。   However, even with this technique, it was not possible to cope with a non-parallel joint shape between the pipe and the pipe, and it was impossible to seam weld the circumference of the joint portion of the pipe with a particularly tight angle. . That is, for example, as shown in FIG. 1, it was impossible to seam weld the circumference of the corner portion of the right-angle pipe.

そのため、そのようなワークの溶接にはシーム溶接を利用できず、多大な手間とコストがかかってしまい、それらのパイプを利用した製品の値段が上がってしまう。一方、略直角のパイプをあきらめ、極めてゆるやかなカーブにしてしえば、そのパイプを設置する場所に大きなスペースを要し、例えば建築物の天井に埋め込むパイプなどの省スペース化という要求に応じることができなくなってしまう。   Therefore, seam welding cannot be used for welding such workpieces, which requires a lot of labor and cost, and increases the price of products using these pipes. On the other hand, if you give up a substantially right-angle pipe and make it a very gentle curve, it takes a large space in the place where the pipe is installed, and it can meet the demand for space saving such as a pipe embedded in the ceiling of a building, for example It becomes impossible.

そこで、本発明は、カーブのきつい、特に直角のパイプの継手部分の円周をシーム溶接することが可能で、しかも出来るだけ簡単な構造を持ったシーム溶接機を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a seam welding machine capable of performing seam welding on a curved portion, particularly the circumference of a joint portion of a right-angle pipe, and having a structure as simple as possible.

前記目的達成するため、本発明の曲パイプ用シーム溶接機は、円盤状のローラ電極を用いて加圧、かつ通電しながら電極を回転させるシーム溶接機であって、第１のハウジング及び第１の電極支持のためのアームにより支持される第１のローラ電極と、前記第１のローラ電極の円盤の角度と同じ円盤の角度で設置される第２のローラ電極と、回転の軸が第２のローラ電極の回転軸と一致して設置される第２のハウジングと、前記回転軸に対し斜めに設置される第２の電極支持のためのアームと、前記第２のローラ電極の回転軸が円盤の中心を維持するように第２のハウジングに設置され、かつ前記第２の電極支持のためのアームを支持する支持板と、を備えることからなる。   In order to achieve the above object, a seam welder for curved pipes according to the present invention is a seam welder that rotates an electrode while applying pressure and energizing using a disk-shaped roller electrode, and includes a first housing and a first A first roller electrode supported by an electrode support arm, a second roller electrode installed at the same disk angle as the disk angle of the first roller electrode, and a second axis of rotation. A second housing installed to coincide with the rotation axis of the roller electrode, an arm for supporting the second electrode installed obliquely with respect to the rotation axis, and a rotation axis of the second roller electrode. And a support plate installed on the second housing so as to maintain the center of the disk and supporting the arm for supporting the second electrode.

第１のローラ電極は、従来のシーム溶接機と同様のものを利用できる。即ち、第１のローラ電極を回転させるための機能を持つ第１のハウジングと、第１のローラ電極の円盤の角度に対し直角の軸を持ち、第１のハウジングと第１のローラ電極を繋ぎ電極を支持する、第１の電極支持のためのアームを有するものである。第１のハウジングの回転軸と、前記直角の軸は第１のローラ電極の中心・回転軸と一致する。   The same thing as a conventional seam welding machine can be used for the 1st roller electrode. That is, the first housing having a function for rotating the first roller electrode and the axis perpendicular to the disk angle of the first roller electrode, and connecting the first housing and the first roller electrode. It has an arm for supporting the first electrode and supporting the electrode. The rotation axis of the first housing and the perpendicular axis coincide with the center / rotation axis of the first roller electrode.

一方、第２のローラ電極は、第１のローラ電極の円盤の角度と同じ円盤の角度で設置され、溶接部分を挟み込むことができる。そして、第２のハウジングは、第１のローラ電極の第１のハウジングと同様に第２のローラ電極を回転させるための機能を持ち、その回転の軸は第２のローラ電極の中心・回転軸と一致する。
なお、２つのローラ電極の素材、形状、大きさ等は、ワークの大きさや素材に応じて適宜選択可能である。例えば、第２の電極のを溶接部分の形状及び大きさに合わせた楕円形にすれば、直角パイプの溶接に適する。 On the other hand, the second roller electrode is installed at the same disc angle as the disc angle of the first roller electrode, and can sandwich the welded portion. The second housing has a function for rotating the second roller electrode in the same manner as the first housing of the first roller electrode, and the axis of rotation is the center / rotation axis of the second roller electrode. Matches.
The material, shape, size, and the like of the two roller electrodes can be appropriately selected according to the size and material of the workpiece. For example, if the second electrode has an oval shape that matches the shape and size of the welded portion, it is suitable for welding a right-angle pipe.

また、第２のハウジングには支持板がさらに設けられる。この支持板に、後述するように前記第２のローラ電極の中心・回転軸に対し斜めに設けられる第２の電極支持のためのアームが設置されるものである。   The second housing is further provided with a support plate. As will be described later, an arm for supporting the second electrode provided obliquely with respect to the center / rotation axis of the second roller electrode is installed on the support plate.

そして、第２の電極支持のためのアームは、第２のローラ電極の中心・回転軸に対して斜めに設けられる。また、第２のローラ電極の中心・回転軸に対して斜めに設けられてはいるものの、支持板との組み合わせにより、第２のローラ電極を回転させてもその回転軸は円盤の中心を維持し、ぶれることがない。いいかえれば、支持板は、第２のローラ電極の回転軸が円盤の中心を維持して、ぶれることがなく、そのうえでワークを適切に回転できるように第２の電極支持のためのアームを支持するものである。   The arm for supporting the second electrode is provided obliquely with respect to the center / rotation axis of the second roller electrode. In addition, although it is provided obliquely with respect to the center / rotation axis of the second roller electrode, the rotation axis maintains the center of the disk even when the second roller electrode is rotated by the combination with the support plate. And there is no blur. In other words, the support plate supports the arm for supporting the second electrode so that the rotation axis of the second roller electrode maintains the center of the disk, does not shake, and can properly rotate the workpiece. Is.

したがって、第２の電極支持のためのアームの斜めの角度は、０度より大きく９０度より小さく、より好適には２０度から７０度の間で、パイプの曲がる角度に合わせて適宜選択すればよく、その長さや形状についても、ワークを邪魔しない限り様々な仕様を選択可能である。   Therefore, the oblique angle of the arm for supporting the second electrode is larger than 0 degree and smaller than 90 degrees, more preferably between 20 degrees and 70 degrees, if it is appropriately selected according to the bending angle of the pipe. Well, various specifications can be selected for its length and shape as long as they do not interfere with the workpiece.

さらに、支持板についても、第２のローラ電極の回転軸が円盤の中心を維持し、ぶれることがなく、かつワークを適切に回転できるという目的を達成できる限り、例えば図３に示されるような円盤形状以外にも、長方形の板状や棒状など、様々な仕様を選択可能である。   Further, as for the support plate, as long as the rotation axis of the second roller electrode maintains the center of the disk, does not shake, and can achieve the purpose of appropriately rotating the workpiece, for example, as shown in FIG. In addition to the disc shape, various specifications such as a rectangular plate shape and a rod shape can be selected.

これにより、たとえ溶接部分を挟んでも、電極支持のためのアームが邪魔になることはなく、２つのローラ電極の回転軸も適切に維持されるので、直角パイプ等曲パイプを適切かつ容易にシーム溶接することができるのである。
すなわち、第２のハウジングが第２のローラ電極を回転させるとき、第２のローラ電極はその位置がぶれることがなく、第２のローラ電極の中心を回転軸として回転し、パイプの溶接部分を挟み、かつワークを適切に回して円周上をシーム溶接することができるものである。 As a result, the arm for supporting the electrode does not get in the way even if the welded part is sandwiched, and the rotating shafts of the two roller electrodes are properly maintained. It can be welded.
That is, when the second housing rotates the second roller electrode, the position of the second roller electrode does not fluctuate, the center of the second roller electrode rotates around the rotation axis, and the welded portion of the pipe is moved. It is possible to perform seam welding on the circumference by sandwiching and rotating the work appropriately.

なお、本発明のシーム溶接機は、制御装置やフレーム等の部材については、公知のものを利用することができ、シーム溶接機自体の製造に関しても比較的低コストを維持できるものである。   In the seam welder of the present invention, known members can be used for members such as the control device and the frame, and the manufacturing cost of the seam welder itself can be maintained at a relatively low cost.

本発明は、以上の構成により、カーブのきつい、特に直角のパイプの継手部分の円周をシーム溶接することが可能で、しかも出来るだけ簡単な構造を持ったシーム溶接機を提供することができる。   The present invention can provide a seam welder that can seam weld the circumference of a joint portion of a pipe having a tight curve, particularly a right angle, and has a structure as simple as possible. .

本発明の実施の形態の例を図面にしたがって説明する。   An example of an embodiment of the present invention will be described with reference to the drawings.

図１は、直角パイプ１を示す図である。直角パイプは、パイプ２とパイプ２’を溶接して製造される。具体的には、溶接部分３、即ちパイプの継手部分の円周を溶接して製造される。前述したように、従来技術では溶接部分３を２つのローラ電極で挟み、かつ溶接部分３に沿ってローラ電極及びワークを動かすことはできず、シーム溶接は利用できなかった。
すなわち、これまでの技術ではパイプ１に角度がついている場合、電極支持のためのアームが邪魔になって直角パイプ１の溶接部分３を電極で挟むことができず、またもし曲パイプを電極で挟むことができても、それを回転させることができなかったのである。 FIG. 1 is a view showing a right-angle pipe 1. The right-angle pipe is manufactured by welding the pipe 2 and the pipe 2 ′. Specifically, it is manufactured by welding the welded portion 3, that is, the circumference of the joint portion of the pipe. As described above, in the prior art, the welded portion 3 is sandwiched between the two roller electrodes, and the roller electrode and the workpiece cannot be moved along the welded portion 3, and seam welding cannot be used.
That is, in the conventional technology, when the pipe 1 is angled, the arm for supporting the electrode is in the way so that the welded portion 3 of the right-angle pipe 1 cannot be sandwiched between the electrodes, and the bent pipe is not covered with the electrodes. Even if it could be pinched, it could not be rotated.

図２は、本発明のシーム溶接機を示す図である。第１のローラ電極４は、従来のシーム溶接機と同様に、第１のローラ電極を回転させるための機能を持つ第１のハウジング５と、第１のローラ電極４の円盤の角度６に対し直角の軸７持ち、第１のハウジング５と第１のローラ電極４を繋ぐ第１の電極支持のためのアーム８を有する。即ち、軸７は第１のローラ電極４のの中心・回転軸と同じである。   FIG. 2 is a view showing a seam welder of the present invention. The first roller electrode 4 has a first housing 5 having a function for rotating the first roller electrode and a disk angle 6 of the first roller electrode 4 in the same manner as a conventional seam welder. It has a right-angle shaft 7 and has an arm 8 for supporting the first electrode that connects the first housing 5 and the first roller electrode 4. That is, the shaft 7 is the same as the center / rotation shaft of the first roller electrode 4.

一方、第２のローラ電極９は、ローラ電極の円盤の角度６と同じ円盤の角度６で設置され、溶接部分３を挟み込む。そして、第２のハウジング１０は、第１のハウジング５と同様に第２のローラ電極９を回転させるための機能を持ち、その回転の軸１２は第２のローラ電極９の中心・回転軸と一致する。   On the other hand, the second roller electrode 9 is installed at an angle 6 of the same disk as the angle 6 of the disk of the roller electrode, and sandwiches the welded portion 3. The second housing 10 has a function for rotating the second roller electrode 9 in the same manner as the first housing 5, and its rotation axis 12 is the center / rotation axis of the second roller electrode 9. Match.

また、第１のハウジング１０には支持板１１がさらに設けられる。この支持板１１に、軸１２に対し斜めに設けられる第２の電極支持のためのアーム１３が設置される。   The first housing 10 is further provided with a support plate 11. An arm 13 for supporting a second electrode provided obliquely with respect to the shaft 12 is installed on the support plate 11.

そして、第２の電極支持のためのアーム１３は、軸１２に対して斜めに設けられる。また、軸１２に対して斜めに設けられてはいるものの、支持板１１との組み合わせにより、第２のローラ電極９の回転軸は円盤の中心を維持し、ぶれることがない。いいかえれば、支持板１１は、第２のローラ電極９の回転軸が円盤の中心を維持し、ぶれることがなく、そのうえでワークを適切に回転できるように第２の電極支持のためのアーム１３を支持するものである。   The arm 13 for supporting the second electrode is provided obliquely with respect to the shaft 12. In addition, although provided obliquely with respect to the shaft 12, the rotation shaft of the second roller electrode 9 maintains the center of the disk and does not shake by the combination with the support plate 11. In other words, the support plate 11 has an arm 13 for supporting the second electrode so that the rotation axis of the second roller electrode 9 maintains the center of the disk, does not shake, and can appropriately rotate the workpiece. It is something to support.

これにより、たとえ溶接部分３を挟んでも、電極支持のためのアームが邪魔になることはなく、２つのローラ電極の回転軸も適切に維持されるので、直角パイプ１を適切かつ容易にシーム溶接することができるのである。
すなわち、第２のハウジング１０が第２のローラ電極９を回転させるとき、第２のローラ電極９はその位置がぶれることはなく、軸１２を回転軸として回転し、パイプ２とパイプ２’の溶接部分３を挟み、適切に回して円周上をシーム溶接することができるものである。 Thus, even if the welded portion 3 is sandwiched, the arm for supporting the electrode does not get in the way, and the rotation shafts of the two roller electrodes are appropriately maintained. Therefore, the right angle pipe 1 can be seam welded appropriately and easily. It can be done.
That is, when the second housing 10 rotates the second roller electrode 9, the second roller electrode 9 does not move in position, and rotates with the shaft 12 as the rotation axis, and the pipe 2 and the pipe 2 ' It is possible to seam weld the circumference by sandwiching the welded portion 3 and turning it appropriately.

図３は、第２のローラ電極９を回したときの、第２の電極支持のためのアーム１３の軌道を示す図である。図に示すように、第２のハウジング１０が第２のローラ電極９を回しても、第２のローラ電極９の位置はぶれることがない。一方、第２の電極支持のためのアーム１３は、１８０度回転させると（Ａ）から（Ｂ）の位置へ移動する。これにより、直角パイプ１を回転させても適切に直角パイプ１を維持しつつ回転させ溶接部分３を溶接できるのである。   FIG. 3 is a view showing the trajectory of the arm 13 for supporting the second electrode when the second roller electrode 9 is rotated. As shown in the figure, even if the second housing 10 rotates the second roller electrode 9, the position of the second roller electrode 9 does not fluctuate. On the other hand, when the arm 13 for supporting the second electrode is rotated 180 degrees, it moves from the position (A) to the position (B). Thereby, even if the right angle pipe 1 is rotated, the welded portion 3 can be welded by rotating while maintaining the right angle pipe 1 appropriately.

直角パイプを示す図である。It is a figure which shows a right angle pipe. 本発明のシーム溶接機を示す図である。It is a figure which shows the seam welder of this invention. 第２の電極支持のためのアームの軌道を示す図である。It is a figure which shows the track | orbit of the arm for 2nd electrode support.

符号の説明Explanation of symbols

１ 直角パイプ
２ パイプ
２’ パイプ
３ 溶接部分
４ 第１のローラ電極
５ 第１のハウジング
６ 円盤の角度
７ 軸
８ 第１の電極支持のためのアーム
９ 第２のローラ電極
１０ 第２のハウジング
１１ 支持板
１２ 軸
１３ 第２の電極支持のためのアーム DESCRIPTION OF SYMBOLS 1 Right angle pipe 2 Pipe 2 'Pipe 3 Welded part 4 1st roller electrode 5 1st housing 6 Disk angle 7 Axis 8 Arm 9 for 1st electrode support 9 2nd roller electrode 10 2nd housing 11 Support plate 12 Axis 13 Arm for supporting second electrode

Claims (1)

円盤状のローラ電極を用いて加圧、かつ通電しながら電極を回転させるシーム溶接機であって、
第１のハウジング（５）及び第１の電極支持のためのアーム（８）により支持される第１のローラ電極（４）と、
前記第１のローラ電極（４）の円盤の角度（６）と同じ円盤の角度（６）で設置される第２のローラ電極（９）と、
回転の軸が第２のローラ電極の回転軸（１２）と一致して設置される第２のハウジング（１０）と、
前記回転軸（１２）に対し斜めに設置される第２の電極支持のためのアーム（１３）と、
前記第２のローラ電極（９）の回転軸（１２）が円盤の中心を維持するように第２のハウジング（１０）に設置され、かつ前記第２の電極支持のためのアーム（１３）を支持する支持板（１１）と、を備える曲パイプ用シーム溶接機。 A seam welding machine that uses a disk-shaped roller electrode to rotate while pressing and energizing,
A first roller electrode (4) supported by a first housing (5) and an arm (8) for supporting the first electrode;
A second roller electrode (9) installed at the same disc angle (6) as the disc angle (6) of the first roller electrode (4);
A second housing (10) installed with its axis of rotation coinciding with the axis of rotation of the second roller electrode (12);
An arm (13) for supporting a second electrode installed obliquely with respect to the rotating shaft (12);
The second roller electrode (9) has a rotating shaft (12) installed on the second housing (10) so as to maintain the center of the disk, and an arm (13) for supporting the second electrode. A bend pipe seam welder comprising a supporting plate (11) for supporting.
JP2007174085A 2007-07-02 2007-07-02 Seam welding machine for curved pipe Active JP5081510B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103358042A (en) * 2012-04-10 2013-10-23 哈米尔顿森德斯特兰德公司 Article including a weld joint
EP2269761B1 (en) * 2009-06-30 2016-07-13 Honda Motor Co., Ltd. Method and apparatus for manufacturing an exhaust pipe assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS584282U (en) * 1981-06-26 1983-01-12 さくら工業株式会社 seam welding machine
JPS58116171U (en) * 1982-02-03 1983-08-08 堀江金属工業株式会社 Welding current control device for seam welding machine
JPS6390585U (en) * 1986-11-27 1988-06-11
JP2000097022A (en) * 1998-09-21 2000-04-04 Honda Motor Co Ltd Manufacture of exhaust tube of engine and manufacturing device therefor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS584282U (en) * 1981-06-26 1983-01-12 さくら工業株式会社 seam welding machine
JPS58116171U (en) * 1982-02-03 1983-08-08 堀江金属工業株式会社 Welding current control device for seam welding machine
JPS6390585U (en) * 1986-11-27 1988-06-11
JP2000097022A (en) * 1998-09-21 2000-04-04 Honda Motor Co Ltd Manufacture of exhaust tube of engine and manufacturing device therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2269761B1 (en) * 2009-06-30 2016-07-13 Honda Motor Co., Ltd. Method and apparatus for manufacturing an exhaust pipe assembly
CN103358042A (en) * 2012-04-10 2013-10-23 哈米尔顿森德斯特兰德公司 Article including a weld joint
US9656343B2 (en) 2012-04-10 2017-05-23 Hamilton Sundstrand Corporation Article including a weld joint

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