JPH11226757A - Friction welding method - Google Patents
Friction welding methodInfo
- Publication number
- JPH11226757A JPH11226757A JP10038331A JP3833198A JPH11226757A JP H11226757 A JPH11226757 A JP H11226757A JP 10038331 A JP10038331 A JP 10038331A JP 3833198 A JP3833198 A JP 3833198A JP H11226757 A JPH11226757 A JP H11226757A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- metal rod
- workpiece
- cylindrical pipe
- welded
- 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.)
- Pending
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
- 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
- B23K20/123—Controlling or monitoring the welding process
- B23K20/1235—Controlling or monitoring the welding process with temperature control during joining
-
- 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
- B23K20/1245—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 characterised by the apparatus
- B23K20/126—Workpiece support, i.e. backing or clamping
-
- 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
- B23K2101/06—Tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は摩擦溶接法に関し、
特に溶接接合による変形や溶接欠陥を減少し、溶接部の
品質改善に貢献する溶接方法に関する。The present invention relates to a friction welding method,
In particular, the present invention relates to a welding method that reduces deformation and welding defects due to welding and contributes to improving the quality of a welded portion.
【０００２】[0002]
【従来の技術】摩擦溶接方法は、実質的に加工物の材質
よりも硬い材質の金属棒を加工物の溶接部に挿入し、こ
の金属棒を回転させながら移動するかまたは加工物自体
を移動することによって、前記金属棒と前記加工物との
間で発生する摩擦熱により溶接する方法である。これは
特公表7−505090号公報（EPO615480B1）で公知である。
つまり、金属棒と加工物との摩擦熱による塑性流動現象
を利用したもので、アーク溶接のように加工物を溶かし
て溶接するものでなはい。さらに、この摩擦溶接方法
は、従来の摩擦溶接方法のように、加工物同士を回転さ
せてその摩擦熱による溶接方法とは異なり、加工物を溶
接線長方向、つまり、長手方向に連続的に溶接できる特
徴がある。2. Description of the Related Art In a friction welding method, a metal rod of a material substantially harder than a material of a workpiece is inserted into a welded portion of the workpiece, and the metal rod is moved while rotating or the workpiece itself is moved. In this case, the welding is performed by frictional heat generated between the metal bar and the workpiece. This is known from Japanese Patent Publication No. 7-505090 (EPO615480B1).
That is, the method utilizes a plastic flow phenomenon caused by frictional heat between a metal rod and a workpiece, and does not melt and weld a workpiece as in arc welding. Furthermore, this friction welding method is different from the conventional friction welding method in which the workpieces are rotated and the welding method using the frictional heat is performed, and the workpiece is continuously welded in the longitudinal direction of the welding line, that is, in the longitudinal direction. There is a feature that can be welded.
【０００３】[0003]
【発明が解決しようとする課題】前記、特公表7−50509
0 号公報の摩擦溶接方法は、前記金属棒と加工物との間
によって生じる摩擦熱によって溶接される。本溶接法で
加工物を溶接した場合、次のような課題が生じる。[Problems to be Solved by the Invention] The above-mentioned special publication 7-50509
In the friction welding method disclosed in Japanese Patent Publication No. 0, welding is performed by frictional heat generated between the metal rod and the workpiece. When a workpiece is welded by the present welding method, the following problems occur.
【０００４】１．加工物の溶接長さが短い場合または厚
さが薄いかまたは加工性の良い材料の場合は摩擦熱も比
較的小さく、溶接変形も小さい。さらに、溶接欠陥の発
生も少ない。しかし、加工物の溶接長さが長い場合また
は厚さが厚い場合、または加工物の剛性が高く、溶接性
の劣る材料の場合は摩擦熱が大きく、溶接変形も大き
い。さらに、溶接欠陥も生じやすくなる。また、前記金
属棒の温度も高くなるため、破損も頻繁に生じる。[0004] 1. When the welding length of the workpiece is short, or when the workpiece is thin or has good workability, the frictional heat is relatively small and the welding deformation is small. Further, the occurrence of welding defects is small. However, when the weld length of the workpiece is long or thick, or when the workpiece has high rigidity and poor weldability, the frictional heat is large and the welding deformation is large. Further, welding defects are also likely to occur. In addition, since the temperature of the metal bar increases, breakage frequently occurs.
【０００５】２．本摩擦溶接方法は、金属棒に下向き方
向に大きな荷重がかかる。このため、円筒管などの内面
が中空などの加工物を溶接した場合、金属棒による下向
き方向の荷重で円筒管に変形または座屈が生じる。[0005] 2. In this friction welding method, a large load is applied to the metal rod in a downward direction. For this reason, when the inner surface of a cylindrical tube or the like is welded to a hollow or other workpiece, the cylindrical tube is deformed or buckled by a downward load caused by a metal rod.
【０００６】３．本溶接により、円筒管の円周方向を溶
接する場合、金属棒の位置が円筒管の回転方向に対して
円筒管の中心または前方に配置した場合、金属棒と加工
物表面との間に空隙が生じるため、溶接欠陥が発生しや
すい。[0006] 3. When the circumferential direction of the cylindrical pipe is welded by the main welding, if the position of the metal rod is located at the center or the front of the cylindrical pipe with respect to the rotation direction of the cylindrical pipe, a gap is formed between the metal rod and the surface of the workpiece. , Welding defects are likely to occur.
【０００７】[0007]
【課題を解決するための手段】本発明は、金属棒と被加
工物との間に生じる摩擦熱による溶接変形及び溶接欠陥
を減少する手段は、溶接に際して強制的に被加工物を冷
却しながら溶接するものであり、特に前記金属棒及び溶
接部の周囲に冷却剤を注ぐかまたは冷却剤の中で溶接す
ることによって達成できる。さらに、冷却機構が設けら
れた導体に加工物の一部または全面を囲んで摩擦溶接す
ることにより達成できる。SUMMARY OF THE INVENTION According to the present invention, a means for reducing welding deformation and welding defects due to frictional heat generated between a metal rod and a workpiece is provided by forcibly cooling the workpiece during welding. Welding, in particular by pouring or welding in coolant around the metal rod and the weld. Further, it can be achieved by friction welding the conductor provided with the cooling mechanism so as to surround a part or the entire surface of the workpiece.
【０００８】また、本発明は、円筒管を摩擦溶接する場
合の金属棒の下向き荷重による円筒管の変形または座屈
は、円筒管の内面に長さが任意に調整できる支持機構を
配置することにより防止できる。In addition, the present invention is to provide a cylindrical pipe having a support mechanism capable of arbitrarily adjusting the length of the cylindrical pipe due to a downward load due to a downward load of the metal rod when the cylindrical pipe is friction-welded. Can be prevented.
【０００９】本発明は、円筒管の円周方向を溶接する場
合の金属棒と加工物表面との空隙によって、発生する溶
接欠陥は、金属棒の位置を円筒管の回転方向に対して円
筒管の中心より後方に配置することによって防止でき
る。According to the present invention, the welding defect caused by the gap between the metal rod and the surface of the workpiece when the circumferential direction of the cylindrical pipe is welded is determined by setting the position of the metal rod to the cylindrical pipe rotation direction. Can be prevented by arranging them behind the center.
【００１０】本発明は、金属棒及び溶接部の周囲を冷却
剤で強制的に冷却することにより、金属棒と加工物との
間に生じる摩擦熱を効率的に冷却できる。この冷却によ
り、溶接後の加工物の変形ならびに変形に伴う溶接欠陥
の発生を減少できる。さらに、前記金属棒を効率的に冷
却できるため、温度を極端に低下できる。従って、連続
的に長時間の溶接においても金属棒の破損を防止でき
る。さらに、加工物を冷却構造を有する導体の中に囲ん
で溶接しても加工物の温度を効率的に冷却できる。According to the present invention, the frictional heat generated between the metal rod and the workpiece can be efficiently cooled by forcibly cooling the periphery of the metal rod and the weld with a coolant. This cooling can reduce the deformation of the workpiece after welding and the occurrence of welding defects due to the deformation. Further, since the metal rod can be efficiently cooled, the temperature can be extremely reduced. Therefore, breakage of the metal rod can be prevented even during continuous long-time welding. Further, the temperature of the workpiece can be efficiently cooled even when the workpiece is surrounded by a conductor having a cooling structure and welded.
【００１１】一方、本発明は、円筒管の内面に長さが任
意に調整できる支持機構を配置することにより、円筒間
の内面側から金属棒による下向き方向の荷重を効率的に
受けることができる。このため、円筒管の変形及び座屈
を防止できる。On the other hand, according to the present invention, by arranging a support mechanism whose length can be arbitrarily adjusted on the inner surface of the cylindrical tube, a downward load by the metal rod can be efficiently received from the inner surface side between the cylinders. . For this reason, deformation and buckling of the cylindrical tube can be prevented.
【００１２】さらに、本発明は、円筒管の円周方向を摩
擦溶接する場合、金属棒の位置を円筒管の回転方向に対
して円筒管の中心より後方に配置することにより、金属
棒と加工物表面との密着性を向上できる。これにより、
溶接欠陥が防止できる。Further, in the present invention, when friction welding is performed in the circumferential direction of a cylindrical tube, the position of the metal rod is arranged behind the center of the cylindrical tube with respect to the rotation direction of the cylindrical tube, so that the metal rod can be processed with the metal rod. Adhesion with the object surface can be improved. This allows
Welding defects can be prevented.
【００１３】[0013]
【発明の実施の形態】（実施例１）図１は電力輸送用ガ
ス遮断機に用いる円筒管の摩擦溶接において、本発明に
よる金属棒１の周りに冷却水２をかけながら円筒管３の
溶接開先部４を長手方向に摩擦溶接している斜視図を示
す。前記円筒管３は外径１０００mm，内径９８０mm，長
さ５０００mmのアルミニウム合金（ＪＩＳ規格Ａ５０８
３）である。図２は図１における溶接部の断面を示す。
金属棒１の先端部分は細く加工され、先端部の径８mm
は、太い部分の径２０mmである。この細い部分が突合わ
せ溶接部に挿入され、回転しながら溶接線方向に移動す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) FIG. 1 shows a friction welding of a cylindrical pipe used for a gas interrupter for electric power transportation, in which a cylindrical pipe 3 is welded while cooling water 2 is applied around a metal rod 1 according to the present invention. The perspective view which carries out friction welding of the groove part 4 in the longitudinal direction is shown. The cylindrical tube 3 is made of an aluminum alloy having an outer diameter of 1000 mm, an inner diameter of 980 mm, and a length of 5000 mm (JIS standard A508).
3). FIG. 2 shows a cross section of the welded portion in FIG.
The tip of the metal rod 1 is thinned and the tip diameter is 8mm
Is a diameter of a thick portion of 20 mm. This narrow portion is inserted into the butt weld and moves in the direction of the welding line while rotating.
【００１４】なお、本実施例における冷却水の温度は１
０℃、流量は２ι／min である。金属棒の回転数は１０
００rpm、移動速度は３００mm／minである。前記冷却に
より、溶接部の近傍の温度及び金属棒の温度を１００℃
以下にできる。これにより、溶接変形を冷却のない従来
溶接法に比べて１／２以下にできる。さらに、金属棒１
も効率的に冷却されるため、温度上昇も小さく、長時間
でも破損なく溶接できる。In this embodiment, the temperature of the cooling water is 1
At 0 ° C, the flow rate is 2ι / min. The rotation speed of the metal rod is 10
00 rpm, the moving speed is 300 mm / min. By the cooling, the temperature in the vicinity of the weld and the temperature of the metal rod are set to 100 ° C.
You can: Thereby, welding deformation can be reduced to １ ／ or less as compared with the conventional welding method without cooling. In addition, metal rod 1
Is cooled efficiently, so that the temperature rise is small and welding can be performed for a long time without damage.
【００１５】一方、本摩擦溶接では金属棒１により、溶
接中に下向き方向に約１０００kgの荷重がかかる。この
ため、円筒管の内側には荷重を支える荷重支持機構６を
配置する。この荷重支持機構６は油圧力７によりスライ
ド式に任意の長さに調整可能である。さらに、前記支持
機構６は円筒管の溶接部と反対方向に設けられたレール
８上を溶接線方向に移動できる。従って、長い円筒管の
場合でも溶接部の裏面を局部的に安定に支持できる。On the other hand, in the present friction welding, a load of about 1000 kg is applied downward by the metal rod 1 during welding. For this reason, a load support mechanism 6 for supporting a load is disposed inside the cylindrical tube. The load supporting mechanism 6 can be slidably adjusted to an arbitrary length by an oil pressure 7. Further, the support mechanism 6 can move in a welding line direction on a rail 8 provided in a direction opposite to a welding portion of the cylindrical pipe. Therefore, even in the case of a long cylindrical tube, the back surface of the welded portion can be locally and stably supported.
【００１６】前記手段によって、支持機構４の先端部を
溶接部５の裏側に効率的に密着させることができる。こ
れにより、金属棒１の下向き荷重を効率的に受けること
ができるため、前記円筒管を変形ならびに座屈の少ない
溶接ができる。さらに、金属棒の破損もなく溶接でき
る。By the above means, the tip of the support mechanism 4 can be efficiently brought into close contact with the back side of the welded portion 5. Thus, the downward load of the metal rod 1 can be efficiently received, so that the cylindrical tube can be welded with less deformation and buckling. Furthermore, welding can be performed without breaking the metal rod.
【００１７】（実施例２）図３は電力用のガス遮断機に
用いる円筒管３の摩擦溶接において、金属棒１の周りに
冷却水２をかけながら、前記円筒管３を円周方向の溶接
開先部４を摩擦溶接する斜視図を示す。前記円筒管３は
外径１０００mm，内径９８０mm，長さ4000mmのアルミニ
ウム合金（ＪＩＳ規格Ａ５０５２）である。図２は図１
における溶接部の断面を示す。金属棒１の先端部分は細
く加工され、先端部の径は１０mm、太い部分の径２０mm
である。この細い部分を突合わせ溶接部に挿入した後、
前記円筒管を回転する。これにより、溶接部５が形成さ
れる。(Embodiment 2) FIG. 3 shows a cylindrical tube 3 used in a gas circuit breaker for electric power, which is welded in a circumferential direction while cooling water 2 is applied around a metal rod 1. The perspective view which carries out friction welding of the groove part 4 is shown. The cylindrical tube 3 is an aluminum alloy (JIS standard A5052) having an outer diameter of 1000 mm, an inner diameter of 980 mm, and a length of 4000 mm. FIG. 2 shows FIG.
2 shows a cross section of a welded portion in FIG. The tip of the metal rod 1 is processed to be thin, the diameter of the tip is 10 mm, and the diameter of the thick part is 20 mm
It is. After inserting this narrow part into the butt weld,
The cylindrical tube is rotated. Thereby, the welded portion 5 is formed.
【００１８】本実施例における円筒管３の回転方向に対
する金属棒１の位置は、円筒管３の回転方向９に対して
円筒管３の中心１０から後方３０mmの位置に配置する。In this embodiment, the position of the metal rod 1 with respect to the rotation direction of the cylindrical tube 3 is located at a position 30 mm rearward from the center 10 of the cylindrical tube 3 with respect to the rotation direction 9 of the cylindrical tube 3.
【００１９】なお、本実施例における冷却水の流量は２
ι／min、金属棒の回転数は1000rpm、加工物の回転移動
速度は２００mm／min である。The flow rate of the cooling water in this embodiment is 2
The rotation speed of the metal rod is 1000 rpm, and the rotational speed of the workpiece is 200 mm / min.
【００２０】前記冷却により、円筒管の溶接部から５mm
離れた表面温度は１００℃以下である。このため、溶接
後の変形は従来の冷却のない溶接部に比べて１／２に減
少できる。さらに、金属棒１も効率的に冷却されため、
長時間の溶接でも破損がない。5 mm from the weld of the cylindrical pipe by the cooling
The remote surface temperature is below 100 ° C. For this reason, the deformation after welding can be reduced to half compared with the conventional weld without cooling. Furthermore, since the metal rod 1 is also efficiently cooled,
No damage even after long welding.
【００２１】一方、本摩擦溶接では金属棒１により、溶
接中に下向き方向に約１０００kgの荷重がかかる。この
ため、円筒管３の内側には荷重を支える荷重支持機構６
が配置されている。この荷重支持機構６は油圧力７によ
り任意の長さに調整可能である。これにより、支持機構
６の先端部を溶接部５の裏側に自動的に密着させること
ができる。これにより、金属棒１からの下向き荷重を効
率的に受けることができるため、前記円筒管を変形なら
びに座屈のない溶接ができる。On the other hand, in the present friction welding, a load of about 1000 kg is applied downward by the metal rod 1 during welding. For this reason, a load supporting mechanism 6 for supporting a load is provided inside the cylindrical tube 3.
Is arranged. The load support mechanism 6 can be adjusted to an arbitrary length by a hydraulic pressure 7. Thereby, the tip of the support mechanism 6 can be automatically brought into close contact with the back side of the welded portion 5. Thus, the downward load from the metal rod 1 can be efficiently received, and the cylindrical tube can be welded without deformation and buckling.
【００２２】（実施例３）図５は高速車両の側外板１２
の一部を本摩擦溶接法により金属棒１と加工物との摩擦
熱により溶接している斜視図を示す。本実施例における
前記側外板１２は、長さ２５ｍ，幅１ｍ，厚さ５mmのア
ルミニウム合金（規格Ａ６Ｎ０１）である。図５に示す
ように金属棒１の周囲に５℃に冷却された窒素ガスを１
０ι／minの流量で吹き付けながら溶接する。金属棒の
回転数は１０００rpm 、加工物の回転移動速度は２００
mm／min である。これにより、長さ２５ｍの車両用の側
外板でも溶接変形が従来摩擦溶接に比べて１／２に減少
している。さらに、長さ２５ｍの溶接でも金属棒の損耗
もなく溶接できる。(Embodiment 3) FIG. 5 shows a side outer plate 12 of a high-speed vehicle.
Is a perspective view in which a part of is welded by friction heat between the metal rod 1 and a workpiece by the present friction welding method. The side outer plate 12 in this embodiment is an aluminum alloy (standard A6N01) having a length of 25 m, a width of 1 m, and a thickness of 5 mm. As shown in FIG. 5, a nitrogen gas cooled to 5.degree.
Weld while spraying at a flow rate of 0ι / min. The rotation speed of the metal rod is 1000 rpm, and the rotation speed of the workpiece is 200
mm / min. As a result, the welding deformation of the vehicle side outer plate having a length of 25 m is reduced to half that of the conventional friction welding. Furthermore, welding can be performed without a metal rod being worn even by welding with a length of 25 m.
【００２３】なお、本実施例では窒素ガスの代わりに１
５℃の冷却水を用いた場合の変形は従来に比べて１／３
に減少している。前記方法により溶接された側外板を組
立て高速車両用の構体を製作する。In this embodiment, 1 is used instead of nitrogen gas.
Deformation when using cooling water of 5 ° C is 1/3 of the conventional one.
Has decreased. The side skins welded by the above method are assembled to produce a structure for a high-speed vehicle.
【００２４】（実施例４）図６はラジオアイソトープ用
の超電導コイル１３を水槽１４の中で摩擦溶接している
斜視図を示す。図７は図６における溶接部の断面を示
す。前記超伝導コイル１３はＮｂ−Ｔｉ合金からなる超
電導線材１５が純アルミニウムからなる安定材の中に埋
め込まれている。前記Ｎｂ−Ｔｉ合金の超電導線材１５
は４００℃以上の温度では超電導特性が失われるため、
４００℃以下で溶接する必要がある。このため、本発明
では１５°の水槽の中で摩擦溶接している。(Embodiment 4) FIG. 6 is a perspective view in which a superconducting coil 13 for a radioisotope is friction-welded in a water tank 14. FIG. 7 shows a cross section of the welded portion in FIG. The superconducting coil 13 has a superconducting wire 15 made of an Nb-Ti alloy embedded in a stabilizer made of pure aluminum. The Nb-Ti alloy superconducting wire 15
Because superconductivity is lost at temperatures above 400 ° C,
It is necessary to weld at 400 ° C. or less. For this reason, in the present invention, friction welding is performed in a 15 ° water tank.
【００２５】本実施例における前記アルミニウム安定材
は厚さ８mm，幅１５mmである。これを長さ５００mmにわ
たり１５℃の水槽で溶接する。本実施例における金属棒
１の先端部の径は３mm，太い部分の径１２mmである。こ
の細い部分が突合わせ溶接部に挿入され、回転しながら
溶接線方向に移動する。また、金属棒の回転数は1000rp
m、移動速度は３００mm／minである。The aluminum stabilizer in this embodiment has a thickness of 8 mm and a width of 15 mm. This is welded in a water bath at 15 ° C. over a length of 500 mm. The diameter of the tip of the metal rod 1 in this embodiment is 3 mm, and the diameter of the thick part is 12 mm. This narrow portion is inserted into the butt weld and moves in the direction of the welding line while rotating. The rotation speed of the metal rod is 1000rp
m, the moving speed is 300 mm / min.
【００２６】前記、水槽中での摩擦溶接により、Ｎｂ−
Ｔｉ合金の超電導線材を１００℃以下の温度で溶接でき
る。このため、超電導特性を損なうことなく健全な溶接
ができる。By the friction welding in the water tank, Nb-
The superconducting wire of Ti alloy can be welded at a temperature of 100 ° C. or less. Therefore, sound welding can be performed without deteriorating the superconducting characteristics.
【００２７】（実施例５）図８はラジオアイソトープ用
の超電導コイル１３を銅冷却構造の導体１７の中で摩擦
溶接している溶接部の断面を示す。前記、導体１７は水
冷の冷却管１６により冷却される構造である。(Embodiment 5) FIG. 8 shows a section of a welded portion where a superconducting coil 13 for a radioisotope is friction-welded in a conductor 17 having a copper cooling structure. The conductor 17 has a structure cooled by a water-cooled cooling pipe 16.
【００２８】前記、超電導コイル１３はＮｂ−Ｔｉ合金
からなる超電導線材１５が純アルミニウムからなる安定
材の中に埋め込まれている。The superconducting coil 13 has a superconducting wire 15 made of an Nb-Ti alloy embedded in a stabilizer made of pure aluminum.
【００２９】本実施例における前記アルミニウム安定材
は厚さ８mm，幅１５mmである。これを長さ５００mmにわ
たり水冷却された導体の中で溶接する。本実施例におけ
る金属棒１の先端部の径は３mm，太い部分の径は１２mm
である。この細い部分が突合わせ溶接部に挿入され、回
転しながら溶接線方向に移動する。また、金属棒の回転
数は１０００rpm、移動速度は３００mm／minである。The aluminum stabilizer in this embodiment has a thickness of 8 mm and a width of 15 mm. This is welded in a water cooled conductor over a length of 500 mm. The diameter of the tip of the metal rod 1 in this embodiment is 3 mm, and the diameter of the thick part is 12 mm.
It is. This narrow portion is inserted into the butt weld and moves in the direction of the welding line while rotating. The rotation speed of the metal rod is 1000 rpm, and the moving speed is 300 mm / min.
【００３０】前記、方法により、Ｎｂ−Ｔｉ合金の超電
導線材を３００℃以下の温度で摩擦溶接できる。According to the above-described method, the superconducting wire of the Nb-Ti alloy can be friction-welded at a temperature of 300 ° C. or less.
【００３１】このため、超電導特性を損なうことなく健
全な溶接ができる。Therefore, sound welding can be performed without impairing the superconducting characteristics.
【００３２】[0032]
【発明の効果】前記説明で明らかなように本発明によれ
ば下記のような効果がある。As apparent from the above description, the present invention has the following effects.
【００３３】１．金属棒及び溶接部の周囲を冷却剤で強
制的に冷却するため、溶接後の加工物の変形ならびに変
形に伴う溶接欠陥の発生を減少できる。特に超電導線材
のような温度によって特性が損なわれるような材料の溶
接に効果的である。1. Since the surroundings of the metal rod and the weld are forcibly cooled by the coolant, deformation of the workpiece after welding and occurrence of welding defects due to the deformation can be reduced. In particular, it is effective for welding a material such as a superconducting wire whose characteristics are deteriorated by temperature.
【００３４】さらに、前記金属棒も効率的に冷却できる
ため、連続的に長時間の溶接においても金属棒の破損を
防止できる。Further, since the metal rod can also be cooled efficiently, the metal rod can be prevented from being damaged even when welding is continuously performed for a long time.
【００３５】２．円筒管の内面に長さが任意に調整でき
る支持機構を配置することにより、円筒間の内面側から
金属棒による下向き方向の荷重を効率的に受けることが
できるため、円筒管の変形及び座屈を防止できる。2. By arranging a support mechanism whose length can be adjusted arbitrarily on the inner surface of the cylindrical tube, the load in the downward direction by the metal rod can be efficiently received from the inner surface between the cylinders. Can be prevented.
【００３６】３．円筒管の円周方向を摩擦溶接する場
合、前記金属棒の位置を円筒管の回転方向に対して円筒
管の中心より後方に配置することにより、金属棒と加工
物表面との密着性を向上できるため、溶接欠陥が防止で
きる。3. In the case of friction welding in the circumferential direction of a cylindrical tube, the position of the metal bar is arranged behind the center of the cylindrical tube with respect to the rotation direction of the cylindrical tube, thereby improving the adhesion between the metal bar and the workpiece surface. Therefore, welding defects can be prevented.
【００３７】本発明の方法の適用例として、車両構体の
溶接、電力用輸送用のガス遮断器用円筒管、超電導線コ
イルの溶接に用いることができる。As an application example of the method of the present invention, the method can be used for welding a vehicle structure, a cylindrical tube for a gas circuit breaker for transporting electric power, and a superconducting wire coil.
【図１】本発明の実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention.
【図２】本発明の実施例を示す図１の断面図である。FIG. 2 is a sectional view of FIG. 1 showing an embodiment of the present invention.
【図３】本発明の実施例を示す斜視図である。FIG. 3 is a perspective view showing an embodiment of the present invention.
【図４】本発明の実施例を示す図３の断面図である。FIG. 4 is a sectional view of FIG. 3 showing an embodiment of the present invention.
【図５】本発明の実施例を示す斜視図である。FIG. 5 is a perspective view showing an embodiment of the present invention.
【図６】本発明の実施例を示す斜視図である。FIG. 6 is a perspective view showing an embodiment of the present invention.
【図７】本発明の実施例を示す図６の断面図である。FIG. 7 is a sectional view of FIG. 6 showing an embodiment of the present invention.
【図８】本発明の実施例を示す断面図である。FIG. 8 is a sectional view showing an embodiment of the present invention.
１…金属棒、２…冷却水、３…円筒管、４…溶接開先
部、５…溶接部、６…支持機構、７…油圧力、８…レー
ル、９…回転方向、１０…円筒管の中心、１２…車両用
の側外板、１３…超電導コイル、１４…水槽、１５…超
電導線材、１６…冷却管、１７…導体。DESCRIPTION OF SYMBOLS 1 ... Metal rod, 2 ... Cooling water, 3 ... Cylindrical tube, 4 ... Weld groove, 5 ... Welded part, 6 ... Support mechanism, 7 ... Hydraulic pressure, 8 ... Rail, 9 ... Rotating direction, 10 ... Cylindrical tube , 12 ... side skin for vehicle, 13 ... superconducting coil, 14 ... water tank, 15 ... superconducting wire, 16 ... cooling pipe, 17 ... conductor.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青田 欣也 茨城県日立市大みか町七丁目１番１号 株 式会社日立製作所日立研究所内 (72)発明者 渡部 幸一 茨城県日立市大みか町七丁目１番１号 株 式会社日立製作所日立研究所内 (72)発明者 高橋 理 茨城県日立市国分町一丁目１番１号 株式 会社日立製作所国分工場内 (72)発明者 浅野 克彦 茨城県日立市幸町三丁目１番１号 株式会 社日立製作所日立工場内 (72)発明者 佐藤 章弘 山口県下松市大字東豊井794番地 株式会 社日立製作所笠戸工場内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Kinya Aota 7-1-1, Omikacho, Hitachi City, Ibaraki Prefecture Inside Hitachi Research Laboratory, Hitachi, Ltd. (72) Koichi Watanabe 7-1, Omikamachi, Hitachi City, Ibaraki Prefecture No. 1 Inside Hitachi, Ltd.Hitachi Research Laboratories (72) Inventor Osamu Takahashi 1-1-1, Kokubuncho, Hitachi City, Ibaraki Prefecture Inside Kokubu Plant, Hitachi, Ltd. 3-1-1, Hitachi, Ltd.Hitachi Works, Hitachi, Ltd.
Claims (6)
金属棒を被加工物の溶接部に挿入し、前記金属棒を回転
させながら移動することによって、前記金属棒と前記加
工物との間で発生する摩擦熱により溶接する摩擦溶接方
法において、前記被加工物を強制的に冷却しながら溶接
することを特徴とする摩擦溶接方法。1. A metal rod having a material substantially harder than a material of a workpiece is inserted into a welded portion of the workpiece, and the metal rod and the workpiece are moved while rotating the metal rod. Wherein the workpiece is welded while forcibly cooling the workpiece.
金属棒を被加工物の溶接部に挿入し、前記金属棒を回転
させながら移動することによって、前記金属棒と前記加
工物との間で発生する摩擦熱により溶接する摩擦溶接方
法において、前記溶接を冷却剤の中で強制的に冷却しな
がら行うことを特徴とする摩擦溶接方法。2. The method according to claim 1, wherein a metal rod of a material substantially harder than the material of the workpiece is inserted into a welded portion of the workpiece, and the metal rod is moved while rotating the metal rod. Wherein the welding is carried out while forcibly cooling in a coolant.
水または不活性ガスのいずれかを用いて行うことを特徴
とする摩擦溶接方法。3. A friction welding method, wherein the forced cooling according to claim 1 or 2 is performed using either water or an inert gas.
ニウム合金の中に埋込まれた超電導コイルの摩擦溶接方
法において、前記超電導コイルを冷却された導体に囲ま
れた状態で溶接することを特徴とする摩擦溶接方法。4. A friction welding method for a superconducting coil in which a superconducting wire is embedded in pure aluminum or an aluminum alloy, wherein the superconducting coil is welded in a state surrounded by a cooled conductor. Welding method.
の金属棒を被加工物の溶接部に挿入し、前記金属棒を回
転させながら移動または被加工物を移動することによっ
て、前記金属棒と前記被加工物との間で発生する摩擦熱
により、前記円筒管を長手方向または円周方向に溶接す
る円筒管の摩擦溶接方法において、前記円筒管の内周面
又は外周面を強制的に冷却しながら溶接することを特徴
とする円筒管の摩擦溶接方法。5. Inserting a metal rod of a material substantially harder than the cylindrical tube of the workpiece into the welded portion of the workpiece, and moving or moving the workpiece while rotating the metal rod. By frictional heat generated between the metal rod and the workpiece, in a friction welding method of a cylindrical pipe for welding the cylindrical pipe in a longitudinal direction or a circumferential direction, an inner peripheral surface or an outer peripheral surface of the cylindrical pipe is removed. A friction welding method for a cylindrical pipe, characterized in that welding is performed while forcibly cooling.
の金属棒を円筒管の溶接部に挿入し、前記金属棒と前記
円筒管との間で発生する摩擦熱により円筒管を円周方向
に溶接する摩擦溶接方法において、前記金属棒の位置は
円筒管の回転方向に対して円筒管の中心より後方に配置
することを特徴とする円筒管の摩擦溶接方法。6. A metal rod of a material substantially harder than a cylindrical pipe of a workpiece is inserted into a welded portion of the cylindrical pipe, and the cylindrical pipe is formed by frictional heat generated between the metal rod and the cylindrical pipe. In a friction welding method for welding in a circumferential direction, the position of the metal rod is disposed behind a center of the cylindrical tube with respect to a rotation direction of the cylindrical tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10038331A JPH11226757A (en) | 1998-02-20 | 1998-02-20 | Friction welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10038331A JPH11226757A (en) | 1998-02-20 | 1998-02-20 | Friction welding method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000010264A Division JP2000153377A (en) | 2000-01-01 | 2000-01-17 | Friction welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11226757A true JPH11226757A (en) | 1999-08-24 |
Family
ID=12522308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10038331A Pending JPH11226757A (en) | 1998-02-20 | 1998-02-20 | Friction welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11226757A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1129811A2 (en) * | 2000-02-21 | 2001-09-05 | Hitachi, Ltd. | friction stir welding method |
| US6736305B2 (en) | 2000-09-07 | 2004-05-18 | Rolls-Royce Plc | Method and apparatus for friction welding |
| EP1606074A2 (en) * | 2003-01-30 | 2005-12-21 | Smith International, Inc. | Out-of-position stir welding of high melting temperature alloys |
| CN102528268A (en) * | 2010-12-17 | 2012-07-04 | 中国科学院金属研究所 | Friction stir welding process for enhancing mechanical property of joint |
| JP2013086137A (en) * | 2011-10-19 | 2013-05-13 | Mitsubishi Heavy Ind Ltd | Friction stirring and joining apparatus |
| JP2014014821A (en) * | 2011-03-29 | 2014-01-30 | Kinki Univ | Device and method for friction stir welding |
| WO2015037071A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社日立製作所 | Friction stir welding method, friction stir welding device and friction stir welded object |
| CN104722912A (en) * | 2015-02-28 | 2015-06-24 | 江苏科技大学 | Track-following-type friction-stir-welding device for pipeline and welding method |
| US9242308B2 (en) | 2009-11-02 | 2016-01-26 | Megastir Technologies Llc | Out of position friction stir welding of casing and small diameter tubing or pipe |
| EP3067149A1 (en) | 2015-03-13 | 2016-09-14 | Wartmann Technologie AG | Internally pressurised tube for gas insulated switching devices or transmission lines and method for their production |
| CN112355464A (en) * | 2020-11-10 | 2021-02-12 | 湖南坤鼎数控科技有限公司 | Friction stir welding protection device |
| CN114289856A (en) * | 2022-01-21 | 2022-04-08 | 沈阳航空航天大学 | Application of friction stir processing method in refining magnesium alloy structure |
| CN114289855A (en) * | 2022-01-21 | 2022-04-08 | 沈阳航空航天大学 | Welding method for improving asymmetry of friction stir welding seam structure |
-
1998
- 1998-02-20 JP JP10038331A patent/JPH11226757A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1129811A3 (en) * | 2000-02-21 | 2003-05-07 | Hitachi, Ltd. | friction stir welding method |
| EP1129811A2 (en) * | 2000-02-21 | 2001-09-05 | Hitachi, Ltd. | friction stir welding method |
| US6736305B2 (en) | 2000-09-07 | 2004-05-18 | Rolls-Royce Plc | Method and apparatus for friction welding |
| EP1606074A2 (en) * | 2003-01-30 | 2005-12-21 | Smith International, Inc. | Out-of-position stir welding of high melting temperature alloys |
| EP1606074A4 (en) * | 2003-01-30 | 2008-08-27 | Smith International | Out-of-position stir welding of high melting temperature alloys |
| US9242308B2 (en) | 2009-11-02 | 2016-01-26 | Megastir Technologies Llc | Out of position friction stir welding of casing and small diameter tubing or pipe |
| CN102528268A (en) * | 2010-12-17 | 2012-07-04 | 中国科学院金属研究所 | Friction stir welding process for enhancing mechanical property of joint |
| JP2014014821A (en) * | 2011-03-29 | 2014-01-30 | Kinki Univ | Device and method for friction stir welding |
| US9079270B2 (en) | 2011-10-19 | 2015-07-14 | Mitsubishi Heavy Industries, Ltd. | Friction stirring and joining apparatus, and friction stirring and joining method |
| JP2013086137A (en) * | 2011-10-19 | 2013-05-13 | Mitsubishi Heavy Ind Ltd | Friction stirring and joining apparatus |
| WO2015037071A1 (en) * | 2013-09-11 | 2015-03-19 | 株式会社日立製作所 | Friction stir welding method, friction stir welding device and friction stir welded object |
| JP6072927B2 (en) * | 2013-09-11 | 2017-02-01 | 株式会社日立製作所 | Friction stir welding method, friction stir welding apparatus, friction stir welding product |
| US9962787B2 (en) | 2013-09-11 | 2018-05-08 | Hitachi, Ltd. | Friction stir welding method, friction stir welding device and friction stir welded material |
| CN104722912A (en) * | 2015-02-28 | 2015-06-24 | 江苏科技大学 | Track-following-type friction-stir-welding device for pipeline and welding method |
| EP3067149A1 (en) | 2015-03-13 | 2016-09-14 | Wartmann Technologie AG | Internally pressurised tube for gas insulated switching devices or transmission lines and method for their production |
| CN112355464A (en) * | 2020-11-10 | 2021-02-12 | 湖南坤鼎数控科技有限公司 | Friction stir welding protection device |
| CN114289856A (en) * | 2022-01-21 | 2022-04-08 | 沈阳航空航天大学 | Application of friction stir processing method in refining magnesium alloy structure |
| CN114289855A (en) * | 2022-01-21 | 2022-04-08 | 沈阳航空航天大学 | Welding method for improving asymmetry of friction stir welding seam structure |
| CN114289855B (en) * | 2022-01-21 | 2023-08-22 | 沈阳航空航天大学 | Welding method for improving friction stir welding seam tissue asymmetry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH11226757A (en) | Friction welding method | |
| JP3718617B2 (en) | Porous electrode wire for electrical discharge machining | |
| JP2000153377A (en) | Friction welding method | |
| US6642471B2 (en) | Method for the projection welding of high-carbon steels and high-tension low-alloy steels | |
| JP2002248583A (en) | Method and device for friction stir working | |
| JP5220449B2 (en) | Method and apparatus for joining metal members | |
| US6765170B2 (en) | Method for single sided spot welding | |
| JP3272853B2 (en) | Crack repair method | |
| Shibata et al. | Process stabilization by dual focus laser welding of aluminum alloys for car body | |
| KR200379475Y1 (en) | Contact tip structure for submerged arc welding by using multiple welding torches | |
| CN112171023A (en) | Method for reducing air holes of welding joints of automobile body sheet aluminum alloy section and casting | |
| JP2001105141A (en) | Method for joining member by stud welding | |
| JPH0550248A (en) | Shielding gas welding method for active metal | |
| JP2818724B2 (en) | Method for producing tubular body for hot-dip plating equipment | |
| JP2004001054A (en) | Butt-joining method | |
| JPH09314339A (en) | Nozzle for plasma-arc welding and plasma-arc welding method | |
| JP2021508598A (en) | How to assemble a ring to a tubular part with a magnetic pulse | |
| JPH05261502A (en) | Lining method for bearing material of sliding bearing | |
| JP2651368B2 (en) | Thin plate welding method and backing plate used in this method | |
| CN117444351A (en) | Welding method and welding protection device for spherical flat titanium butt joint | |
| JPH06198452A (en) | Welding method for spiral steel pipe | |
| JP2001062572A (en) | Impeder device | |
| RU2138352C1 (en) | Line for making electrically welded metallic tubes | |
| JP2762823B2 (en) | ERW welding equipment | |
| JPS5913579A (en) | Welding method of copper and copper alloy having high strength and high conductivity |