JPH05318136A - Resistance welding method for aluminum and aluminum alloy materials - Google Patents
Resistance welding method for aluminum and aluminum alloy materialsInfo
- Publication number
- JPH05318136A JPH05318136A JP4143378A JP14337892A JPH05318136A JP H05318136 A JPH05318136 A JP H05318136A JP 4143378 A JP4143378 A JP 4143378A JP 14337892 A JP14337892 A JP 14337892A JP H05318136 A JPH05318136 A JP H05318136A
- Authority
- JP
- Japan
- Prior art keywords
- welded
- electrode
- welding
- alloy
- foil
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は抵抗溶接において、圧延
鋼板と比べて電極寿命の劣るアルミニウム及びアルミニ
ウム合金を被溶接材料とする場合に、電極の寿命を圧延
鋼板の場合と同等に改善した抵抗溶接方法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to resistance welding in which resistance of an electrode is improved to the same level as that of a rolled steel plate when using aluminum and an aluminum alloy, which have a shorter electrode life than a rolled steel plate, as materials to be welded. The present invention relates to a welding method.
【０００２】[0002]
【従来の技術】従来の圧延鋼板を用いた自動車等の大量
生産における組立工程の接合方法として、抵抗スポット
溶接方法が多く用いられていたが、その理由としては、
非常に能率的な溶接方法で大量生産に適していること、
および一度溶接条件を設定すると全く素人の人でも、ま
たロボットでも容易に溶接ができ、安定した溶接ナゲッ
トや継手強度が得られるからである。従来の抵抗スポッ
ト溶接方法は、被溶接材料を重ねて、上電極、下電極で
加圧、通電してナゲットを形成して接合する。従来の圧
延鋼板のみに限らず、アルミニウムおよびその合金や複
合材料を抵抗スポット溶接する場合においても、電極材
料としてＪＩＳ Ｚ ３２３４−1977「抵抗溶接用銅電
極材料」の第１種、又は第２種を用い、電極形状は、Ｊ
ＩＳＣ９３０４−1986「スポット溶接用電極の形状及び
寸法」で定める形状のものを用いるのが一般的である。
電極材料としてこれらの材料が使用される理由として
は、被溶接材料より熱伝導や導電率が高いので、接触部
で電極と被溶接材料が接合しにくいので連続して溶接で
きるためである。2. Description of the Related Art A resistance spot welding method has been widely used as a joining method in an assembly process in mass production of automobiles using conventional rolled steel sheets.
Suitable for mass production with a very efficient welding method,
Also, once the welding conditions are set, welding can be performed easily even by an entirely amateur person or robot, and stable welding nuggets and joint strength can be obtained. In the conventional resistance spot welding method, the materials to be welded are stacked, and the nugget is formed by applying pressure and current to the upper electrode and the lower electrode to join them. Not limited to the conventional rolled steel sheet, aluminum and even when its alloys or composite materials resistance spot welding, JIS Z 3234- 1977 first kind of "copper electrode material for resistance welding" as the electrode material, or the two And the electrode shape is J
ISC9304- 1986 to use a shape specified by "the shape and dimensions of the spot welding electrode" is generally used.
The reason why these materials are used as the electrode material is that they have higher thermal conductivity and conductivity than the material to be welded, so that the electrode and the material to be welded are difficult to join at the contact portion, so that continuous welding is possible.
【０００３】しかし、実際には、被溶接材料の種類によ
って、連続して所定の強度やナゲット径等の要求性能を
確保して溶接できる溶接点数（電極寿命）が異なってい
る。溶接する前に電極の先端を所定の形状に切削した
り、所定の表面粗度に磨いたりして整えるが、そのこと
をドレッシングと称する。１回のドレッシングで連続し
て所定の要求性能を有した溶接部が得られる打点数をそ
の電極の電極寿命と言うが、その判定方法として次のよ
うなものがある。 ．ナゲット径、又は引張せん断強さが規定の値以下に
なるまでの連続打点数。 ．電極先端に、電極と被溶接材料との合金層ができ
て、それが溶接部に転写されて外観が損なわれる現象を
ピックアップと称するが、これが発生し始める前までの
連続打点数。 ．電極が被溶接材料に溶着してとれなくなる現象が起
こる前までの連続打点数等。 一般的には及びの方法が用いられることが多いの
で、この明細書の電極寿命の用語は、及びの判定方
法を用いることとする。この判定方法で従来の圧延鋼板
を用いた自動車の組み立てラインにおける抵抗スポット
溶接の電極寿命を示すと、１００００打点以上であると
言われている。このように、圧延鋼板の抵抗スポット溶
接では非常に長い電極寿命であるが、アルミニウム及び
アルミニウム合金の抵抗スポット溶接の電極寿命は２０
０〜１０００打点と言われている。However, in reality, the number of welding points (electrode life) at which welding can be continuously performed while ensuring required strength such as predetermined strength and nugget diameter is different depending on the type of material to be welded. Before welding, the tip of the electrode is cut into a predetermined shape or polished to a predetermined surface roughness, which is called dressing. The number of dots at which a weld having a predetermined required performance can be obtained continuously by one dressing is called the electrode life of the electrode, and there are the following determination methods. ． The number of continuous dots until the nugget diameter or tensile shear strength falls below a specified value. ． The phenomenon in which an alloy layer of the electrode and the material to be welded is formed at the tip of the electrode and is transferred to the welded part and the appearance is impaired is called pickup. The number of continuous dots before this starts to occur. ． The number of continuous dots before the phenomenon that the electrode is welded to the material to be welded and cannot be removed. Since the method of and is often used, the term of electrode life in this specification is to use the method of and. When the electrode life of resistance spot welding in an automobile assembly line using a conventional rolled steel sheet is shown by this determination method, it is said to be 10,000 or more points. As described above, resistance spot welding of rolled steel plate has a very long electrode life, but resistance spot welding of aluminum and aluminum alloys has an electrode life of 20.
It is said to be 0-1000 RBI.
【０００４】上記のように、アルミニウム合金の抵抗ス
ポット溶接における電極寿命は圧延鋼板より非常に劣る
ため、その改善方法が従来から検討がなされている。例
えば、特開昭６１−１５９２８８号公報では、図６のご
とく、アルミニウム又はアルミニウム合金同士を電気抵
抗溶接するにあたり、電極１、２と被溶接材料１１、１
２の間に電極より高電気伝導性のインサート材（箔状介
在物）９、１０を介装して溶接する方法が提案されてい
る。これは、かなり過剰な入熱で溶接しても、溶込みが
板の表面まで到らず、表面割れを発生することなくアル
ミニウム合金同士を溶接する方法であるが、電極寿命を
ある程度改善する効果も有ると考えられる。As described above, the electrode life in resistance spot welding of an aluminum alloy is much inferior to that of a rolled steel sheet. Therefore, a method for improving the electrode has been studied. For example, in Japanese Unexamined Patent Publication No. 61-159288, as shown in FIG. 6, when aluminum or aluminum alloys are electrically resistance-welded, electrodes 1 and 2 and materials 11 and 1 to be welded are used.
A method has been proposed in which insert materials (foil-like inclusions) 9 and 10 having higher electrical conductivity than the electrodes are interposed between the two and welding. This is a method of welding aluminum alloys to each other without causing surface cracks even when welding with a considerably excessive heat input, and the effect of improving electrode life to some extent. It is thought that there is also.
【０００５】ところで、アルミニウムやアルミニウム合
金を抵抗溶接するにあたり、電極と被溶接材料との間に
銅及び銅合金の箔を用いた場合は、アルミニウムとの親
和性が良く、加圧、溶接する２００℃付近において拡散
接合しやすい。このため導電性があり、かつアルミニウ
ムより溶融点が高いにもかかわらず抵抗溶接の介在物と
しては不向きであることがわかった。一方省エネルギー
の見地から自動車の軽量化が望まれ、軽く強度の高いア
ルミニウム及びアルミニウム合金が自動車用材料として
注目されてきた。しかし前述したように、アルミニウム
及びアルミニウム合金の抵抗溶接は、従来の圧延鋼板に
比較して著しく電極寿命が短く電極のドレッシングが頻
繁になり、自動車等の大量生産においてはこれがネック
になり問題であった。In the case of resistance welding aluminum or aluminum alloy, when a foil of copper or copper alloy is used between the electrode and the material to be welded, the aluminum and aluminum alloy have a good affinity with each other and are pressed and welded. Diffusion bonding is easy at around ℃. Therefore, it has been found that it is not suitable as an inclusion for resistance welding although it has conductivity and has a higher melting point than aluminum. On the other hand, from the viewpoint of energy saving, the weight reduction of automobiles is desired, and light weight and high strength aluminum and aluminum alloys have attracted attention as materials for automobiles. However, as described above, resistance welding of aluminum and aluminum alloys has a significantly shorter electrode life than conventional rolled steel sheets and requires frequent electrode dressing, which is a problem in mass production of automobiles and the like. It was
【０００６】[0006]
【発明が解決しようとする課題】本発明は上記の問題に
ついて検討の結果なされたもので、アルミニウム及びア
ルミニウム合金の抵抗溶接にあたり、電極寿命を著しく
向上させる抵抗溶接方法を開発したものである。DISCLOSURE OF THE INVENTION The present invention has been made as a result of studying the above problems, and has developed a resistance welding method for remarkably improving the electrode life in resistance welding of aluminum and aluminum alloys.
【０００７】[0007]
【課題を解決するための手段】本発明は、アルミニウム
及びアルミニウム合金材料の抵抗溶接にあたり、電極と
被溶接材料との間に、銅又は銅合金の両面にＮｉ又はＮ
ｉ合金、Ｔｉ又はＴｉ合金、Ｎｂ又はＮｂ合金、Ｍｏ又
はＭｏ合金、Ｗ又はＷ合金、Ｃｒ又はＣｒ合金、Ｃｏ又
はＣｏ合金のいずれかを１〜１００μｍ被覆した厚さ
０．０２〜１ｍｍの箔状介在物を介して接合することを
特徴とするアルミニウム及びアルミニウム合金材料の抵
抗溶接方法を請求項１とし、アルミニウム及びアルミニ
ウム合金材料の抵抗溶接にあたり、電極と被溶接材料と
の間に、銅又は銅合金の表面にＮｉ又はＮｉ合金、Ｔｉ
又はＴｉ合金、Ｎ６又はＮ６合金、Ｍｏ又はＭｏ合金、
Ｗ又はＷ合金、Ｃｒ又はＣｒ合金、Ｃｏ又はＣｏ合金の
中で、異なった金属を片面ずつに、それぞれ１〜１００
μｍ被覆した厚さ０．０２〜１ｍｍの箔状介在物を介し
て接合することを特徴とするアルミニウム及びアルミニ
ウム合金材料の抵抗溶接方法を請求項２とするものであ
る。すなわち本発明は、アルミニウム及びアルミニウム
合金、例えばＡｌ合金として、Ａｌ−Ｓｉ系、Ａｌ−Ｍ
ｇ系、Ａｌ−Ｍｇ−Ｓｉ系、Ａｌ−Ｃｕ−Ｍｇ系、Ａｌ
−Ｚｎ−Ｍｇ系、Ａｌ−Ｚｎ−Ｃｕ−Ｍｇ系などの合金
材料を抵抗溶接するに際し、上下電極と被溶接材料の接
触する箇所に、上記の箔状介在物を挟んで加圧、通電し
て溶接する方法である。なお、この溶接に用いる溶接機
は、従来用いられている単相交流式抵抗溶接機、単相整
流式抵抗溶接機、三相低周波抵抗溶接機、三相整流式抵
抗溶接機、コンデンサー式抵抗溶接機、インバータ抵抗
溶接機等のいずれでも良い。また箔状介在物を自動的に
連続供給することもできる。The present invention relates to resistance welding of aluminum and aluminum alloy materials, and Ni or N on both surfaces of copper or copper alloy between the electrode and the material to be welded.
A foil having a thickness of 0.02 to 1 mm coated with any one of i alloy, Ti or Ti alloy, Nb or Nb alloy, Mo or Mo alloy, W or W alloy, Cr or Cr alloy, Co or Co alloy in a range of 1 to 100 μm. The method for resistance welding of aluminum and aluminum alloy materials is characterized in that the electrodes and the material to be welded are made of copper or copper. Ni or Ni alloy, Ti on the surface of copper alloy
Or Ti alloy, N6 or N6 alloy, Mo or Mo alloy,
Among W or W alloys, Cr or Cr alloys, Co or Co alloys, different metals on each side are 1 to 100, respectively.
A resistance welding method for aluminum and aluminum alloy materials is characterized in that the welding is performed through a foil-shaped inclusion having a thickness of 0.02 to 1 mm coated with μm. That is, the present invention relates to aluminum and aluminum alloys, for example, Al alloys, such as Al-Si system and Al-M.
g type, Al-Mg-Si type, Al-Cu-Mg type, Al
When resistance-welding an alloy material such as -Zn-Mg-based or Al-Zn-Cu-Mg-based, the above foil-like inclusion is sandwiched between the upper and lower electrodes and the material to be welded, and pressure and current are applied. It is a method of welding. The welding machine used for this welding is a single-phase AC resistance welding machine, a single-phase rectification resistance welding machine, a three-phase low-frequency resistance welding machine, a three-phase rectification resistance welding machine, and a condenser-type resistance that have been conventionally used. Either a welding machine or an inverter resistance welding machine may be used. Also, the foil inclusions can be automatically and continuously supplied.
【０００８】[0008]
【作用】前記の手段により、溶接電流は、電極から通電
性の箔状介物を通過して被溶接材料に流れ、被溶接材料
間の抵抗により発熱、溶解し、ナゲットを形成する。故
に、溶接電流は被溶接材料同士が健全に溶接できる入熱
量が得られる値とし、介在物まで溶ける入熱量は必要と
しない。箔状介在物まで溶ける溶接条件は、過剰入熱で
あり、被溶接材料自体の表面まで完全に溶けて割れ等の
欠陥も発生し、介在物を用いる意味がなくなる。箔状介
在物は鋭意研究した結果、銅又は銅合金板の両面、又は
片面ずつに、Ｎｉ、Ｔｉ、Ｎｂ、Ｍｏ、Ｗ、Ｃｒ、Ｃｏ
又はそれらの合金を１〜１００μｍ被覆した厚さ０．０
２〜１ｍｍのものは、前記Ｃｕ等の金属材料より、電極
寿命が長く、しかも電極や被溶接物への溶着が無く、テ
ープ状にして連続供給が可能であると共に、溶接部の外
観、内部品質も良好であることが判った。被覆金属の厚
さが素板の厚さの１μｍ未満では、溶接電流をナゲット
形成以上にすると被覆金属まで溶けてしまうため望まし
くない。又、被覆金属の厚さが１００μｍを超える場合
は、単体金属の時と同じ程度の効果しか得られない。故
に銅又は銅合金板の両面、又は片面ずつにＮｉ、Ｔｉ、
Ｎｂ、Ｍｏ、Ｗ、Ｃｒ、Ｃｏ及びそれらの合金を被覆す
る割合は、１〜１００μｍとする。介在物の厚さは、
０．０２ｍｍ未満では、通常の抵抗溶接で溶融して電極
や被溶接材料に溶着してしまい、１ｍｍを越えると溶接
電流が通常の値ではナゲットが所定の大きさにならず、
強度が低下して溶接不可になるばかりでなく、テープ状
にして自動供給する場合は、不具合が起こりやすい。故
に、介在物の厚さは０．０２〜１ｍｍとする。With the above-mentioned means, the welding current flows from the electrode through the electrically conductive foil-like material to the material to be welded, and is heated and melted by the resistance between the materials to be welded to form a nugget. Therefore, the welding current is set to a value at which the heat input amount at which the materials to be welded can be welded soundly is obtained, and the heat input amount at which the inclusions are melted is not required. The welding condition for melting even the foil-like inclusions is excessive heat input, and even the surface of the material to be welded is completely melted and defects such as cracks occur, which makes the use of inclusions meaningless. As a result of diligent research on the foil-like inclusions, Ni, Ti, Nb, Mo, W, Cr, Co was formed on both sides or each side of the copper or copper alloy plate.
Or a thickness of 0.0 to 1 to 100 μm coated with those alloys
2 to 1 mm has a longer electrode life than metal materials such as Cu and has no welding to the electrode or the object to be welded and can be continuously supplied in the form of a tape. The quality was also found to be good. If the thickness of the coating metal is less than 1 μm, which is the thickness of the blank, if the welding current is higher than the nugget formation, the coating metal will be melted, which is not desirable. Further, when the thickness of the coating metal exceeds 100 μm, only the same effect as that of the single metal can be obtained. Therefore, Ni, Ti,
The ratio of coating Nb, Mo, W, Cr, Co and their alloys is 1 to 100 μm. The thickness of inclusions is
If it is less than 0.02 mm, it is melted by ordinary resistance welding and welded to the electrode or the material to be welded, and if it exceeds 1 mm, the nugget does not have a predetermined size when the welding current is a normal value.
Not only the strength decreases and welding becomes impossible, but when tapes are automatically supplied, problems are likely to occur. Therefore, the thickness of the inclusions is 0.02 to 1 mm.
【０００９】それらの被覆金属の被覆方法としては、溶
融めっき、電気めっき、気相めっき、合わせ圧延等のい
ずれの方法でもよい。箔状介在物は、溶接前に適当な大
きさに切断して被溶接物の溶接箇所に置いておくか、貼
りつけておき、それを電極で挟んで溶接し、溶接後箔状
介在物を取り除くことによってナゲット径及び圧こん表
面が健全な溶接部が得られる。この工程を繰り返すこと
によって全てのナゲットおよび圧こん表面が健全な溶接
部が連続して得られると共に、電極の消耗が極めて少な
く、電極寿命が飛躍的に向上する。また、箔状介在物を
リボン状（テープ状）にしておき、１点又は数点溶接毎
に溶接部に供給することにより、連続打点も可能にな
り、能率的に溶接することができる。The coating method of these coating metals may be any method such as hot dipping, electroplating, vapor phase plating, and laminated rolling. Before welding, cut the foil-like inclusions to an appropriate size and place them on the welded part of the work piece or paste them together, sandwich them with electrodes, and weld them. By removing the welded part, the nugget diameter and the indented surface are sound. By repeating this process, all the nuggets and welded parts having a well-pressed surface are continuously obtained, and the consumption of the electrode is extremely small, resulting in a dramatic improvement in the electrode life. Further, by forming the foil-shaped inclusions in a ribbon shape (tape shape) and supplying them to the weld portion at every one-point or several-point welding, continuous spotting is also possible and efficient welding can be performed.
【００１０】[0010]
【実施例】以下、添付の図面を参照して本発明の実施例
について具体的に説明する。 実施例１ 図１は、本発明の実施例１を示す模式図である。上電極
１および下電極２はＪＩＳ Ｚ ３２３４の２種に相当
するクロム銅の１６ｍｍφを使用し、電極先端形状は、
Ｒ形でＲ＝８０ｍｍとした。電極１、２には、冷却用の
９ｍｍφの穴３，４があけられ、それぞれ導管５、６を
通じて水７、８を３リットル／分の流量で流して電極を
冷却した。被溶接材料１１、１２はＡｌ−Ｍｇ系合金で
ある５１８２−Ｏ材、１ｍｍ厚さの材料であり、上電極
１と被溶接材料１１の間、および下電極２と被溶接材料
１２との間に、純銅の両面にＮｉ又はＮｉ合金を１〜１
００μｍ各種方法で被覆させたもの、及び片面にＮｉ又
はＮｉ合金を、他面にＴｉ、Ｎｂ、Ｍｏ、Ｗ、Ｃｒ、Ｃ
ｏのいずれかを被覆させたもの、１７種類の各種箔状介
在物９、１０を挟み、単相交流溶接機を用いて、溶接電
流２３０００Ａ、電極加圧力２９４０Ｎ、通電時間５サ
イクルの溶接条件で溶接した。なお、被溶接材料は入荷
したままの表面状態とし、試験片の寸法は３０×２００
ｍｍとし、これを２枚重ねて３０ｍｍピッチで５点溶接
した。Ｎｉ等を被覆した上記金属箔を被溶接材料と同じ
寸法に切断して電極と被溶接物の間に挟んで溶接した。
溶接前に、電極の先端は＃１０００のエメリー紙でドレ
ッシングした。そして連続１２０００点溶接し、溶接し
た試験片は、図２のごとく、バネ秤１８で箔状介在物９
が被溶接材料１１から剥がれる荷重を測定した。剥がれ
荷重は、自動供給装置の剥がれ能力を考慮して１５０ｇ
を許容最大値とした。これ以上では、機械的に簡単に剥
がれないと考えられたからである。Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. Example 1 FIG. 1 is a schematic diagram showing Example 1 of the present invention. For the upper electrode 1 and the lower electrode 2, 16 mmφ of chrome copper corresponding to two types of JIS Z 3234 is used, and the electrode tip shape is
In the R type, R = 80 mm. Holes 3 and 4 of 9 mmφ for cooling were formed in the electrodes 1 and 2, and water 7 and 8 were flowed through conduits 5 and 6 at a flow rate of 3 liter / min to cool the electrodes. The materials 11 and 12 to be welded are 5182-O material, which is an Al-Mg-based alloy, and a material having a thickness of 1 mm, and between the upper electrode 1 and the material to be welded 11 and between the lower electrode 2 and the material to be welded 12. 1 to 1 of Ni or Ni alloy on both sides of pure copper
00 μm coated by various methods, and Ni or Ni alloy on one side and Ti, Nb, Mo, W, Cr, C on the other side
With a coating of any one of o and 17 kinds of various foil-shaped inclusions 9 and 10, and using a single-phase AC welding machine, the welding current is 23000 A, the electrode pressure is 2940 N, and the welding time is 5 cycles. Welded. The material to be welded should be in the surface condition as received, and the size of the test piece shall be 30 x 200.
mm, and two pieces were stacked and welded at 5 points at a pitch of 30 mm. The metal foil coated with Ni or the like was cut into the same size as the material to be welded and sandwiched between the electrode and the object to be welded and welded.
Prior to welding, the tip of the electrode was dressed with # 1000 emery paper. Then, the continuous test piece was welded at 12000 points, and the welded test piece was subjected to the foil inclusion 9 by the spring scale 18 as shown in FIG.
Was peeled off from the material 11 to be welded. The peeling load is 150g, considering the peeling ability of the automatic feeder.
Was the maximum allowable value. This is because it was thought that if it was more than this, it would not easily peel mechanically.
【００１１】また、図３のピール試験治具２１に被溶接
材料１１の一端を挟み、まるめながらひきはがして、ノ
ギスでナゲット１３の長径および短径を測定し、次の式
で計算して求めた。 ナゲット径＝（長径＋短径）／２（ｍｍ） 電極寿命の限界ナゲット径は、ＪＩＳ Ｚ ３１４０
のＡ級の最小ナゲット径の４ｍｍとした。比較例とし
て、箔状介在物の被覆厚さが、１μｍ未満、及び１００
μｍを超える場合や、箔状介在物の厚さが０．０２ｍｍ
未満及び１ｍｍを越える場合を示した。又、従来方法と
して、Ｃｕ単体金属箔を用いた場合と、箔状介在物を用
いないで同一条件で溶接した場合の電極寿命も調べた。
この結果を表１に示す。In addition, one end of the material 11 to be welded is sandwiched between the peel test jigs 21 shown in FIG. It was Nugget diameter = (major diameter + minor diameter) / 2 (mm) The limit nugget diameter of the electrode life is JIS Z 3140
The minimum nugget diameter of Class A was 4 mm. As a comparative example, the coating thickness of the foil-like inclusions is less than 1 μm, and 100
If the thickness exceeds μm or the thickness of foil inclusions is 0.02 mm
The cases below 1 mm and above 1 mm are shown. Further, as a conventional method, the electrode life was also examined when using a Cu single metal foil and when welding was performed under the same conditions without using a foil-like inclusion.
The results are shown in Table 1.
【００１２】[0012]
【表１】 [Table 1]
【００１３】本発明実施例のものは、いずれのものも１
２０００点溶接できて、箔状介在物の剥がれ荷重は１５
０ｇ以下であり、全てのナゲット径は４ｍｍ以上であっ
た。即ち、電極寿命は１２０００点（以上）であった。
この時の電極先端状態を感圧紙を用いて調べたが、溶接
開始前と１２０００点溶接後で、電極先端の形状はほと
んど変わっていなかった。これに対し、比較例として用
いたＮｉ又はＮｉ合金の被覆厚さが１μｍ未満のもの
は、１４５２点で被溶接材料と溶着し、ナゲット径が４
ｍｍ以下になった。逆に、Ｎｉ又はＮｉ合金の被覆厚さ
が１００μｍを越えるものは、電極や被溶接材料とは溶
着しなかったが、１６８１点でナゲット径が４ｍｍ以下
になった。また、箔状介在物の厚さが０．０２ｍｍ未満
のものは溶接で溶けてその電極寿命は１５１３点であ
り、１ｍｍを超えるものは溶接不可であった。従来方法
の、Ｃｕ単体の場合の電極寿命は７６０点であり、箔状
介在物を使用しないで溶接したものの電極寿命は４５５
点であり、ナゲット径が規格以下になった。その時の電
極先端形状は５０点目ですでに上下電極とも中心部が凹
形になっており、打点数が多くなるに従って電極の径が
大きくなり、被溶接材料への当たりが悪くなっていた。
以上のように、本発明の実施例によれば、比較例及び従
来方法と比べてそれらの１０倍以上の電極寿命が得られ
た。All of the embodiments of the present invention are 1
2000 points can be welded and the peeling load of foil inclusions is 15
It was 0 g or less, and all nugget diameters were 4 mm or more. That is, the electrode life was 12000 points (or more).
The state of the electrode tip at this time was examined using pressure-sensitive paper, but the shape of the electrode tip was almost unchanged before the start of welding and after 12000 spot welding. On the other hand, the Ni or Ni alloy having a coating thickness of less than 1 μm used as a comparative example is welded to the material to be welded at 1452 points and has a nugget diameter of 4
It became less than mm. On the contrary, when the coating thickness of Ni or Ni alloy exceeds 100 μm, it was not welded to the electrode or the material to be welded, but the nugget diameter was 4 mm or less at 1681 points. Further, the foil-like inclusions having a thickness of less than 0.02 mm were melted by welding and the electrode life was 1513 points, and those having a thickness of more than 1 mm were not weldable. In the conventional method, the electrode life in the case of Cu alone is 760 points, and the electrode life is 455 when welded without using the foil-like inclusions.
The point is that the nugget diameter fell below the standard. The shape of the electrode tip at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the diameter of the electrode increased as the number of hit points increased, making it difficult to hit the material to be welded.
As described above, according to the example of the present invention, the electrode life was 10 times or more that of the comparative example and the conventional method.
【００１４】実施例２ 図４は、本発明の実施例２を示す模式図である。上電極
１および下電極２はＪＩＳ Ｚ ３２３４の２種に相当
するクロム銅の１６ｍｍφを使用し、電極先端形状はＤ
Ｒ形で、先端の６ｍｍφ部をＲ＝４０ｍｍとした。電極
１、２には、冷却用の９ｍｍφの穴３、４があけられ、
導管５、６を通じて水７、８を３リットル／分の流量で
流して各電極を冷却した。被溶接材料１１、１２はＡｌ
−Ｍｇ系合金である５０５２−Ｏ材、１ｍｍ厚さの材料
であり、上電極１と被溶接材料１１の間、および下電極
２と被溶接材料１２との間に銅又は銅合金板の両面にＴ
ｉ又はＴｉ合金を１〜１００μｍ各種方法で被覆させた
もの、及び片面にＴｉ合金を、他面にＮｉ、Ｎｂ、Ｍ
ｏ、Ｗ、Ｃｒ、Ｃｏのいずれかを被覆させたもの、１７
種類の各種箔状介在物９、１０を挟み、単相整流式抵抗
溶接機を用いて、溶接電流２５０００Ａ、電極加圧力２
９４０Ｎ、通電時間５サイクルの溶接条件で溶接した。
なお、被溶接材料は入荷したままの表面状態とし、試験
片の寸法は３０×２００ｍｍとし、これを２枚重ねて３
０ｍｍピッチで５点溶接した。箔状介在物は１６ｍｍ幅
のテープ状にし、送りリール２２、２３により電極と被
溶接材料の間に自動供給して溶接した。電極は各材料毎
に新品を使用した。そして連続１２０００点溶接し、溶
接した試験片の評価を実施例１と同様に行った。比較例
としては、箔状介在物の被覆厚さが１μｍ未満、及び１
００μｍを超える場合を示した。また、従来方法とし
て、Ｃｕ単体金属箔を用いた場合と、箔状介在物を用い
ないで同一条件で溶接した場合について電極寿命を調べ
た。この結果を表２に示す。Second Embodiment FIG. 4 is a schematic diagram showing a second embodiment of the present invention. For the upper electrode 1 and the lower electrode 2, 16 mmφ of chrome copper corresponding to JIS Z 3234 two types is used, and the electrode tip shape is D
In the R type, the 6 mmφ portion at the tip was R = 40 mm. The electrodes 1 and 2 have holes 3 and 4 of 9 mmφ for cooling,
Each electrode was cooled by flowing water 7 and 8 through conduits 5 and 6 at a flow rate of 3 l / min. Materials to be welded 11 and 12 are Al
-Mg alloy 5052-O material, 1 mm thick material, both surfaces of copper or copper alloy plate between upper electrode 1 and material 11 to be welded, and between lower electrode 2 and material 12 to be welded To T
i or Ti alloy coated with 1 to 100 μm by various methods, and Ti alloy on one surface and Ni, Nb, M on the other surface
O, W, Cr, Co coated, 17
Welding current 25000A, electrode pressure 2 using a single-phase rectification resistance welding machine sandwiching various kinds of foil inclusions 9 and 10.
Welding was carried out under the welding conditions of 940 N and energization time of 5 cycles.
The surface of the material to be welded is as received, and the size of the test piece is 30 x 200 mm.
Five spot welding was performed at a pitch of 0 mm. The foil inclusion was formed into a tape having a width of 16 mm, and was automatically supplied between the electrode and the material to be welded by the feed reels 22 and 23 for welding. New electrodes were used for each material. Then, continuous 12000 spot welding was performed, and the welded test piece was evaluated in the same manner as in Example 1. As a comparative example, the coating thickness of the foil inclusion is less than 1 μm, and 1
The case where it exceeds 00 μm is shown. Further, as a conventional method, the electrode life was examined for the case of using a Cu simple metal foil and the case of welding under the same conditions without using a foil-like inclusion. The results are shown in Table 2.
【００１５】[0015]
【表２】 [Table 2]
【００１６】本発明実施例のものは、いずれのものも１
２０００点溶接できて、箔状介在物の剥がれ荷重は１５
０ｇ以下であり、全てのナゲット径は４ｍｍ以上であっ
た。即ち、電極寿命は１２０００点（以上）であった。
この時の電極先端状態を感圧紙を用いて調べたが、溶接
開始前と１２０００点溶接後で、電極先端の形状はほと
んど変わっていなかった。これに対し、比較例として用
いたＴｉ又はＴｉ合金の被覆厚さが１μｍ未満のもの
は、１３１４点で被溶接材料と溶着してナゲット径が４
ｍｍ以下になった。Ｔｉ又はＴｉ合金の被覆厚さが１０
０μｍを越えるものは、被溶接材料とは溶着しなかった
が、自動供給において送りがスムースでなく、また、１
５８０点でナゲット径が４ｍｍ以下になった。箔状介在
物の厚さが０．０２ｍｍ未満のものは溶接で溶けて電極
寿命は１４２２点であり、１ｍｍを超えるものは溶接不
可であった。また、従来方法のＣｕ単体のものの電極寿
命は７１２点であり、箔状介在物を使用しないで溶接し
たものは４０１点で、ナゲット径が規格以下になった。
また、その時の電極先端形状は５０点目ですでに上下電
極とも中心部が凹形になっており、打点数が多くなるに
従って電極径が大きくなり、被溶接材料への当たりが悪
くなっていた。All of the embodiments of the present invention are 1
2000 points can be welded and the peeling load of foil inclusions is 15
It was 0 g or less, and all nugget diameters were 4 mm or more. That is, the electrode life was 12000 points (or more).
The state of the electrode tip at this time was examined using pressure-sensitive paper, but the shape of the electrode tip was almost unchanged before the start of welding and after 12000 spot welding. On the other hand, the Ti or Ti alloy having a coating thickness of less than 1 μm used as a comparative example was welded to the material to be welded at 1314 points and had a nugget diameter of 4
It became less than mm. The coating thickness of Ti or Ti alloy is 10
Those exceeding 0 μm did not weld to the material to be welded, but the feed was not smooth during automatic feeding, and 1
At 580 points, the nugget diameter became 4 mm or less. If the thickness of the foil-like inclusions was less than 0.02 mm, it was melted by welding and the electrode life was 1422 points, and if it exceeded 1 mm, welding was impossible. In addition, the electrode life of the conventional Cu alone was 712 points, and that of the welding without the foil-like inclusion was 401 points, and the nugget diameter was below the standard.
In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００１７】実施例３ 抵抗溶接機は図１に示すものを用い、上電極１および下
電極２はＪＩＳ Ｚ３２３４の２種に相当するクロム銅
の１６ｍｍφを使用し、電極先端形状は、Ｒ形で、Ｒ＝
８０ｍｍとした。電極１、２には、冷却用の９ｍｍφの
穴３、４があけられ、導管５、６を通じて水７、８を３
リットル／分の流量で流して電極を冷却した。被溶接材
料１１、１２はＡｌ−Ｍｇ−Ｓｉ系合金である６００９
−Ｔ４材、１ｍｍ厚さの材料であり、上電極１と被溶接
材料１１の間、および下電極２と被溶接材料１２との間
に、銅又は銅合金板の両面にＮｂ又はＮｂ合金を１〜１
００μｍ各種方法で被覆させたもの、及び片面にＮｂ又
はＮｂ合金を、他面にＮｉ、Ｔｉ、Ｍｏ、Ｗ、Ｃｒ、Ｃ
ｏのいずれかを被覆させたもの、１７種類の各種箔状介
在物９、１０を挟み、単相交流溶接機を用いて、溶接電
流２７０００Ａ、電極加圧力２４５０Ｎ、通電時間８サ
イクルの溶接条件で溶接した。なお、被溶接材料は入荷
したままの表面状態とし、試験片の寸法は３０×２００
ｍｍとし、これを２枚重ねて３０ｍｍピッチで５点溶接
した。箔状介在物は被溶接材料と同じ寸法に切断して電
極と被溶接物の間に挟んで溶接した。溶接前に、電極の
先端は、＃１０００のエメリー紙でドレッシングした。
そして連続１２０００点溶接し、溶接した試験片の評価
を実施例１と同様に行った。比較例としては、箔状介在
物の被覆厚さが１μｍ未満、及び１００μｍを越える場
合を示した。また、従来方法として、Ｃｕ単体金属箔を
用いた場合と、箔状介在物を用いないで同一条件で溶接
した場合について電極寿命を調べた。この結果を表３に
示す。Example 3 The resistance welding machine shown in FIG. 1 was used, the upper electrode 1 and the lower electrode 2 were made of chromium copper 16 mmφ corresponding to two types of JIS Z3234, and the electrode tip shape was R type. , R =
It was set to 80 mm. The electrodes 1 and 2 are provided with holes 3 and 4 of 9 mmφ for cooling, and water 7 and 8 are collected through conduits 5 and 6, respectively.
The electrode was cooled by flowing at a flow rate of 1 / min. Materials to be welded 11 and 12 are Al-Mg-Si alloys 6009
-T4 material, a material having a thickness of 1 mm, and Nb or Nb alloy on both surfaces of a copper or copper alloy plate between the upper electrode 1 and the material to be welded 11 and between the lower electrode 2 and the material to be welded 12. 1-1
00 μm coated by various methods, and Nb or Nb alloy on one side and Ni, Ti, Mo, W, Cr, C on the other side
With one of o coated and 17 kinds of various foil-shaped inclusions 9 and 10, a welding current of 27,000 A, electrode pressure of 2450 N, and energization time of 8 cycles are used under the welding conditions using a single-phase AC welding machine. Welded. The material to be welded should be in the surface condition as received, and the size of the test piece shall be 30 x 200.
mm, and two pieces were stacked and welded at 5 points at a pitch of 30 mm. The foil inclusion was cut to the same size as the material to be welded, sandwiched between the electrode and the object to be welded, and welded. Prior to welding, the tip of the electrode was dressed with # 1000 emery paper.
Then, continuous 12000 spot welding was performed, and the welded test piece was evaluated in the same manner as in Example 1. As comparative examples, cases where the coating thickness of the foil-like inclusions is less than 1 μm and more than 100 μm are shown. Further, as a conventional method, the electrode life was examined for the case of using a Cu simple metal foil and the case of welding under the same conditions without using a foil-like inclusion. The results are shown in Table 3.
【００１８】[0018]
【表３】 [Table 3]
【００１９】本発明実施例のものは、いずれのものも１
２０００点溶接できて、箔状介在物の剥がれ荷重は１５
０ｇ以下であり、全てのナゲット径は４ｍｍ以上であっ
た。即ち、電極寿命は１２０００点（以上）であった。
この時の電極先端状態を感圧紙を用いて調べたが、溶接
開始前と１２０００点溶接後で、電極先端の形状はほと
んど変わっていなかった。これに対し、比較例として用
いたＮｂ又はＮｂ合金の被覆厚さが１μｍ未満のもの
は、１５８４点で被溶接材料と溶着し、ナゲット径が４
ｍｍ以下になった。逆に、Ｎｂ又はＮｂ合金被覆厚さが
１００μｍを越えるものは、被溶接材料とは溶着しなか
ったが、１７５１点でナゲット径が４ｍｍ以下になっ
た。介在物の厚さが０．０２ｍｍ未満のものは溶接で溶
けて電極寿命は１６３１点であり、１ｍｍを越えるもの
は溶接不可であった。従来方法のＣｕ単体の場合は７５
５点であり、箔状介在物を使用しないで溶接したものの
電極寿命は４３９点であり、ナゲット径が規格以下にな
った。また、その時の電極先端形状は５０点目ですでに
上下電極とも中心部が凹形になっており、打点数が多く
なるに従って電極径が大きくなり、被溶接材料への当た
りが悪くなっていた。All of the examples of the present invention are 1
2000 points can be welded and the peeling load of foil inclusions is 15
It was 0 g or less, and all nugget diameters were 4 mm or more. That is, the electrode life was 12000 points (or more).
The state of the electrode tip at this time was examined using pressure-sensitive paper, but the shape of the electrode tip was almost unchanged before the start of welding and after 12000 spot welding. On the other hand, the Nb or Nb alloy having a coating thickness of less than 1 μm used as a comparative example is welded to the material to be welded at 1584 points and has a nugget diameter of 4
It became less than mm. On the contrary, when the Nb or Nb alloy coating thickness exceeds 100 μm, it was not welded to the material to be welded, but the nugget diameter was 4 mm or less at 1751 points. The inclusions having a thickness of less than 0.02 mm were melted by welding and had an electrode life of 1631 points, and those having a thickness of more than 1 mm could not be welded. 75 for conventional Cu alone
It was 5 points, and the electrode life of the welding was 439 points without welding the foil-like inclusions, and the nugget diameter was below the standard. In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００２０】実施例４ 抵抗溶接機は図１に示すものを用い、上電極１および下
電極２はＪＩＳ Ｚ３２３４の２種に相当するクロム銅
の１６ｍｍφを使用し、電極先端形状はＤＲ形で、先端
部の６ｍｍφのＲ＝４０ｍｍとした。電極１、２には、
冷却用の９ｍｍφの穴３、４があけられ、導管５、６を
通じて水７、８を３リットル／分の流量で流して電極を
冷却した。被溶接材料１１、１２は５０８３−Ｏ材、１
ｍｍ厚さの材料であり、上電極１と被溶接材料１１の
間、および下電極２と被溶接材料１２との間に、銅又は
銅合金板の両面にＭｏ又はＭｏ合金を１〜１００μｍ各
種方法で被覆させたもの、及び片面にＭｏ又はＭｏ合金
を、他面にＮｉ、Ｔｉ、Ｎｂ、Ｃｒ、Ｗ、Ｃｏのいずれ
かを被覆させたもの１７種類の各種箔状介在物９、１０
を挟み、単相交流溶接機を用いて、溶接電流２５０００
Ａ、電極加圧力２６５０Ｎ、通電時間５サイクルの溶接
条件で溶接した。なお、被溶接材料は入荷したままの表
面状態とし、試験片の寸法は３０×２００ｍｍとし、こ
れを２枚重ねて３０ｍｍピッチで５点溶接した。箔状介
在物９、１０は被溶接材料と同じ寸法に切断して電極と
被溶接物の間に挟んで溶接した。電極は各溶接について
新品を使用した。そして連続１２０００点溶接し、溶接
した試験片の評価は実施例１と同様に行った。比較例と
して、箔状介在物の被覆厚さが、１μｍ未満、及び１０
０μｍを越える場合を示した。また、従来方法として、
Ｃｕ単体の電極寿命、及び箔状介在物を用いないで同一
条件で溶接した場合の電極寿命も調べた。この結果を表
４に示す。Example 4 The resistance welding machine shown in FIG. 1 was used, the upper electrode 1 and the lower electrode 2 were made of chromium copper 16 mmφ corresponding to two kinds of JIS Z3234, and the electrode tip shape was DR type. R of the tip portion of 6 mmφ was set to 40 mm. The electrodes 1 and 2 are
Holes 3 and 4 of 9 mmφ for cooling were drilled, and water 7 and 8 were caused to flow through conduits 5 and 6 at a flow rate of 3 l / min to cool the electrodes. Materials to be welded 11 and 12 are 5083-O materials and 1
It is a material having a thickness of mm, and between the upper electrode 1 and the material to be welded 11 and between the lower electrode 2 and the material to be welded 12, Mo or Mo alloy is applied to both surfaces of a copper or copper alloy plate in an amount of 1 to 100 μm. Those coated by the method, and one side coated with Mo or Mo alloy, and the other side coated with any one of Ni, Ti, Nb, Cr, W, and Co. 17 kinds of various foil-like inclusions 9, 10
With a single-phase alternating current welding machine
Welding was performed under the welding conditions of A, electrode pressure 2650 N, and energization time 5 cycles. In addition, the material to be welded was in the surface state as it was received, the dimensions of the test piece were 30 × 200 mm, and two of these were stacked and welded at 5 points at a pitch of 30 mm. The foil-shaped inclusions 9 and 10 were cut to the same size as the material to be welded and sandwiched between the electrode and the object to be welded. The electrode used was new for each welding. Then, continuous 12000 spot welding was performed, and the welded test piece was evaluated in the same manner as in Example 1. As a comparative example, the coating thickness of the foil-like inclusions is less than 1 μm, and 10
The case where it exceeds 0 μm is shown. Also, as a conventional method,
The electrode life of Cu alone and the electrode life in the case of welding under the same conditions without using foil inclusions were also examined. The results are shown in Table 4.
【００２１】[0021]
【表４】 [Table 4]
【００２２】前記実施例の抵抗溶接方法によれば、いず
れの箔状介在物を使用した場合も１２０００点溶接でき
て、箔状介在物の剥がれ荷重は１５０ｇ以下であり、全
てのナゲット径は４ｍｍ以上であった。即ち、電極寿命
は１２０００点（以上）であった。この時の電極先端状
態を感圧紙を用いて調べたが、溶接開始前と１２０００
点溶接後で電極先端の形状はほとんど変わっていなかっ
た。これに対し、比較例として用いたＭｏ又はＭｏ合金
の被覆厚さが１μｍ未満のものは、１３２５点で被溶接
材料と溶着し、ナゲット径が４ｍｍ以下になった。逆
に、Ｍｏ又はＭｏ合金の被覆厚さが素板の１００μｍを
超えるものは、被溶接材料とは溶着しなかったが、１５
５３点でナゲット径が４ｍｍ以下になった。介在物の厚
さが０．０２ｍｍ未満のものは溶接で溶けて電極寿命は
１４２１点であり、１ｍｍを越えるものは溶接不可であ
った。また、従来方法のＣｕ単体の場合の電極寿命は７
３２点であり、箔状介在物を使用しないで溶接したもの
の電極寿命は５１６点であり、ナゲット径が規格以下に
なった。また、その時の電極先端形状は５０点目ですで
に上下電極とも中心部が凹形になっており、打点数が多
くなるに従って電極径が大きくなり、被溶接材料への当
たりが悪くなっていた。According to the resistance welding method of the above-mentioned embodiment, it is possible to weld 12000 points regardless of which foil inclusions are used, the peeling load of the foil inclusions is 150 g or less, and all the nugget diameters are 4 mm. That was all. That is, the electrode life was 12000 points (or more). The state of the electrode tip at this time was examined using pressure sensitive paper.
The shape of the electrode tip was almost unchanged after spot welding. On the other hand, the Mo or Mo alloy used as a comparative example having a coating thickness of less than 1 μm was welded to the material to be welded at 1325 points and had a nugget diameter of 4 mm or less. On the other hand, when the coating thickness of Mo or Mo alloy exceeds 100 μm of the bare plate, it was not welded to the material to be welded.
The nugget diameter became 4 mm or less at 53 points. The inclusions having a thickness of less than 0.02 mm were melted by welding and had an electrode life of 1421 points, and those having a thickness of more than 1 mm were not weldable. In addition, the life of the electrode is 7 with the conventional method of Cu alone.
There were 32 points, and the electrode life of the welding was 516 points without welding the foil-like inclusions, and the nugget diameter was below the standard. In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００２３】実施例５ 図５は、本発明の実施例５を示す模式図である。上電極
１および下電極２はＪＩＳ Ｚ ３２３４の２種に相当
するクロム−ジルコニウム−銅合金の１６ｍｍφを使用
し、電極先端形状はＲ形で、Ｒ＝８０ｍｍとした。電極
１、２には、冷却用の９ｍｍφの穴３、４があけられ、
導管５、６を通じて水７、８を３リットル／分の流量で
流して電極を冷却した。被溶接材料１１、１２はＡｌ−
Ｍｇ系合金である５１８２−Ｏ材、１ｍｍ厚さの材料で
あり、上電極１と被溶接材料１１の間、および下電極２
と被溶接材料１２との間に、銅又は銅合金板の表面にＷ
又はＷ合金を１〜１００μｍ各種方法で被覆させたも
の、及び片面にＷ又はＷ合金を、他面にＮｉ、Ｔｉ、Ｎ
ｂ、Ｍｏ、Ｃｒ、Ｃｏのいずれかを被覆させたもの１７
種類の各種箔状介在物９、１０を挟み、単相整流式抵抗
溶接機を用いて、溶接電流２６０００Ａ、電極加圧力２
６５０Ｎ、通電時間５サイクルの溶接条件で溶接した。
なお、被溶接材料は入荷したままの表面状態とし、試験
片の寸法は３０×２００ｍｍとし、これを２枚重ねて３
０ｍｍピッチで５点溶接した。箔状介在物は１６ｍｍ幅
のテ−プ状にし、送りリ−ルにより電極と被溶接材料の
間に自動供給しながら溶接した。溶接前に、電極の先端
は＃１０００のエメリー紙でドレッシングした。そして
連続１２０００点溶接し、溶接した試験片の評価は実施
例１と同様に行った。比較例として、箔状介在物の被覆
厚さが、１μｍ未満、及び１００μｍを越える場合を示
した。また、従来方法として、Ｃｕ単体の金属箔を使用
した場合と、箔状介在物を用いないで同一条件で溶接し
た場合の電極寿命も調べた。この結果を表５に示す。Embodiment 5 FIG. 5 is a schematic diagram showing Embodiment 5 of the present invention. As the upper electrode 1 and the lower electrode 2, 16 mmφ of a chromium-zirconium-copper alloy corresponding to two types of JIS Z 3234 was used, and the electrode tip shape was R-shaped, and R = 80 mm. The electrodes 1 and 2 have holes 3 and 4 of 9 mmφ for cooling,
The electrodes were cooled by flowing water 7 and 8 through conduits 5 and 6 at a flow rate of 3 l / min. The materials 11 and 12 to be welded are Al-
5182-O material, which is a Mg-based alloy, is a material with a thickness of 1 mm, and is between the upper electrode 1 and the material 11 to be welded, and the lower electrode 2.
Between the material to be welded 12 and the surface of the copper or copper alloy plate W
Alternatively, W alloy coated with various methods of 1 to 100 μm, and W or W alloy on one surface and Ni, Ti, N on the other surface.
b, Mo, Cr, or Co coated 17
Welding current 26000A, electrode pressure 2 using a single-phase rectification resistance welding machine sandwiching various kinds of foil inclusions 9 and 10.
Welding was performed under the welding conditions of 650 N and energization time of 5 cycles.
The surface of the material to be welded is as received, and the size of the test piece is 30 x 200 mm.
Five spot welding was performed at a pitch of 0 mm. The foil inclusion was formed into a tape having a width of 16 mm, and was welded while being automatically supplied between the electrode and the material to be welded by a feed reel. Prior to welding, the tip of the electrode was dressed with # 1000 emery paper. Then, continuous 12000 spot welding was performed, and the welded test piece was evaluated in the same manner as in Example 1. As comparative examples, cases where the coating thickness of the foil-like inclusions is less than 1 μm and more than 100 μm are shown. In addition, as a conventional method, the electrode life was examined when using a metal foil of Cu alone and when welding was performed under the same conditions without using foil inclusions. The results are shown in Table 5.
【００２４】[0024]
【表５】 [Table 5]
【００２５】本発明実施例のように、銅又は銅合金板に
Ｗ又はＷ合金を１〜１００μｍ被覆した箔状介在物を用
いた場合は、いずれのものも１２０００点溶接できて、
箔状介在物の剥がれ荷重は１５０ｇ以下であり、全ての
ナゲット径は４ｍｍ以上であった。即ち、電極寿命は１
２０００点（以上）であった。この時の電極先端状態を
感圧紙を用いて調べたが、溶接開始前と１２０００点溶
接後で、電極先端の形状はほとんど変わっていなかっ
た。また、箔状介在物の自動供給も円滑に行われて問題
はなかった。これに対し、比較例として用いたＷ又はＷ
合金の被覆厚さが１μｍ未満のものは、１４９９点で被
溶接材料と溶着し、ナゲット径が４ｍｍ以下になった。
逆に、Ｗ又はＷ合金の被覆厚さが１００μｍを超えるも
のは、被溶接材料とは溶着しなかったが、自動供給の送
りが円滑に行われず、１７２５点でナゲット径が４ｍｍ
以下になった。箔状介在物の厚さが０．０２ｍｍ未満の
ものは溶接で溶けて電極寿命は１６１４点であり、１ｍ
ｍを越えるものは溶接不可であった。また、従来方法
の、Ｃｕ単体の場合の電極寿命は７８２点であり、箔状
介在物を使用しないで溶接したものの電極寿命は４９６
点であり、ナゲット径は規格以下になった。また、その
時の電極先端形状は５０点目ですでに上下電極とも中心
部が凹形になっており、打点数が多くなるに従って電極
径が大きくなり、被溶接材料への当たりが悪くなってい
た。When a foil-like inclusion obtained by coating a copper or copper alloy plate with W or a W alloy in a range of 1 to 100 μm is used as in the examples of the present invention, any of them can be welded at 12000 points,
The peeling load of the foil-like inclusions was 150 g or less, and all the nugget diameters were 4 mm or more. That is, the electrode life is 1
It was 2000 points (or higher). The state of the electrode tip at this time was examined using pressure-sensitive paper, but the shape of the electrode tip was almost unchanged before the start of welding and after 12000 spot welding. Further, there was no problem because the automatic supply of foil-like inclusions was smoothly performed. On the other hand, W or W used as a comparative example
If the alloy coating thickness was less than 1 μm, it was welded to the material to be welded at 1499 points, and the nugget diameter was 4 mm or less.
On the contrary, if the coating thickness of W or W alloy exceeds 100 μm, it was not welded to the material to be welded, but the automatic supply was not smoothly performed, and the nugget diameter was 4 mm at 1725 points.
It became below. If the thickness of foil inclusions is less than 0.02 mm, it will be melted by welding and the electrode life will be 1614 points, 1 m.
Welding was impossible for those exceeding m. In addition, the electrode life of the conventional method in the case of Cu alone is 782 points, and the electrode life of welded without using the foil-shaped inclusions is 496.
The point is that the nugget diameter fell below the standard. In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００２６】実施例６ 抵抗溶接機は図１に示したものを使用し、上電極１およ
び下電極２はＪＩＳＺ ３２３４の２種に相当するクロ
ム−ジルコニウム−銅合金の１６ｍｍφを使用し、電極
先端形状はＲ形で、Ｒ＝８０ｍｍとした。電極１、２に
は、冷却用の９ｍｍφの穴３、４があけられ、導管５、
６を通じて水７、８を３リットル／分の流量で流して電
極を冷却した。被溶接材料１１、１２はＡｌ−Ｍｇ系合
金である５１８２−Ｏ材、１ｍｍ厚さの材料であり、上
電極１と被溶接材料１１の間、および下電極２と被溶接
材料１２との間に、銅又は銅合金板の表面にＣｒ又はＣ
ｒ合金を１〜１００μｍ各種方法で被覆させたもの、及
び片面にＣｒ又はＣｒ合金を、他面にＮｉ、Ｔｉ、Ｎ
ｂ、Ｍｏ、Ｗ、Ｃｏのいずれかを被覆させたもの１７種
類の各種箔状介在物９、１０を挟み、単相交流溶接機を
用いて、溶接電流２５０００Ａ、電極加圧力２９５０
Ｎ、通電時間７サイクルの溶接条件で溶接した。なお、
被溶接材料は入荷したままの表面状態とし、試験片の寸
法は３０×２００ｍｍとし、これを２枚重ねて３０ｍｍ
ピッチで５点溶接した。箔状介在物は、被溶接材料と同
じ寸法に切断して電極と被溶接材料の間に挟んで溶接し
た。溶接前に、電極の先端は＃１０００のエメリー紙で
ドレッシングした。そして連続１２０００点溶接し、溶
接した試験片の評価は実施例１と同様に行った。比較例
として、箔状介在物の被覆厚さが、１μｍ未満、及び１
００μｍを越える場合を示した。また、従来方法とし
て、Ｃｕ単体の金属箔を使用した場合と、箔状介在物を
用いないで同一条件で溶接した場合の電極寿命も調べ
た。この結果を表６に示す。Example 6 The resistance welding machine shown in FIG. 1 was used, the upper electrode 1 and the lower electrode 2 were made of chromium-zirconium-copper alloy 16 mmφ corresponding to two types of JIS Z 3234, and the electrode tip was used. The shape was R-shaped, and R = 80 mm. The electrodes 1 and 2 are provided with holes 3 and 4 of 9 mmφ for cooling, and the conduits 5 and
The electrodes were cooled by flowing water 7 and 8 through 6 at a flow rate of 3 l / min. The materials 11 and 12 to be welded are 5182-O material, which is an Al-Mg-based alloy, and a material having a thickness of 1 mm, and between the upper electrode 1 and the material to be welded 11 and between the lower electrode 2 and the material to be welded 12. , Cr or C on the surface of copper or copper alloy plate
r alloy coated with various methods of 1 to 100 μm, Cr or Cr alloy on one surface, and Ni, Ti, N on the other surface
b, Mo, W, Co coated with 17 kinds of various foil-like inclusions 9 and 10 and using a single-phase AC welding machine, welding current 25000A, electrode pressure 2950
Welding was performed under the welding conditions of N and energization time of 7 cycles. In addition,
The material to be welded is as received, and the dimensions of the test piece are 30 x 200 mm.
Welded at 5 points on the pitch. The foil inclusion was cut into the same size as the material to be welded, sandwiched between the electrode and the material to be welded, and welded. Prior to welding, the tip of the electrode was dressed with # 1000 emery paper. Then, continuous 12000 spot welding was performed, and the welded test piece was evaluated in the same manner as in Example 1. As a comparative example, the coating thickness of the foil inclusion is less than 1 μm, and 1
The case where it exceeds 00 μm is shown. In addition, as a conventional method, the electrode life was examined when using a metal foil of Cu alone and when welding was performed under the same conditions without using foil inclusions. The results are shown in Table 6.
【００２７】[0027]
【表６】 [Table 6]
【００２８】本発明実施例のように、銅又は銅合金板に
Ｃｒ又はＣｒ合金を１〜１００μｍ被覆した箔状介在物
を用いた場合は、いずれのものも１２０００点溶接でき
て、箔状介在物の剥がれ荷重は１５０ｇ以下であり、全
てのナゲット径は４ｍｍ以上であった。即ち、電極寿命
は１２０００点（以上）であった。この時の電極先端状
態を感圧紙を用いて調べたが、溶接開始前と１２０００
点溶接後で、電極先端の形状はほとんど変わっていなか
った。これに対し、比較例として用いたＣｒ又はＣｒ合
金の被覆厚さが１μｍ未満のものは、１３７５点で被溶
接材料と溶着し、ナゲット径が４ｍｍ以下になった。逆
に、Ｃｒ又はＣｒ合金の被覆厚さが１００μｍを超える
ものは、被溶接材料とは溶着しなかったが、１６２２点
でナゲット径が４ｍｍ以下になった。箔状介在物の厚さ
が０．０２ｍｍ未満のものは溶接で溶けて電極寿命は１
４９１点であり、１ｍｍを越えるものは溶接不可であっ
た。また、従来方法の、Ｃｕ単体の場合の電極寿命は７
１８点であり、箔状介在物を使用しないで溶接したもの
の電極寿命は５２１点であり、ナゲット径は規格以下に
なった。また、その時の電極先端形状は５０点目ですで
に上下電極とも中心部が凹形になっており、打点数が多
くなるに従って電極径が大きくなり、被溶接材料への当
たりが悪くなっていた。When a foil-like inclusion in which Cr or a Cr alloy is coated with Cr or a Cr alloy in a range of 1 to 100 μm is used as in the embodiment of the present invention, any of them can be welded at 12000 points and the foil-like inclusion can be obtained. The peeling load of the article was 150 g or less, and all the nugget diameters were 4 mm or more. That is, the electrode life was 12000 points (or more). The state of the electrode tip at this time was examined using pressure sensitive paper.
After the spot welding, the shape of the electrode tip was almost unchanged. On the other hand, the Cr or Cr alloy having a coating thickness of less than 1 μm used as a comparative example was welded to the material to be welded at 1375 points and had a nugget diameter of 4 mm or less. Conversely, Cr or Cr alloys with a coating thickness of more than 100 μm did not weld to the material to be welded, but the nugget diameter was 4 mm or less at 1622 points. If the thickness of foil inclusions is less than 0.02 mm, it will be melted by welding and the electrode life will be 1
It was 491 points, and welding exceeding 1 mm was not possible. In addition, the electrode life of the conventional method when using Cu alone is 7
It was 18 points, the electrode life of the welding was 521 points without using the foil-like inclusions, and the nugget diameter was below the standard. In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００２９】実施例７ 図５は本発明方法による実施例７を示す模式図である。
上電極１及び下電極２はＪＩＳ Ｚ ３２３４の２種に
相当するクロム銅の１６ｍｍφを使用し、電極先端形状
はＤＲ形で、先端部の６ｍｍφのＲ＝４０ｍｍとした。
電極１、２には、冷却用の９ｍｍφの穴３、４があけら
れ、導管５、６を通じて水７、８を３リットル／分の流
量で流して電極を冷却した。被溶接材料１１、１２はＡ
ｌ−Ｍｇ系合金である５０８２−Ｏ材、１ｍｍ厚さの材
料であり、上電極１と被溶接材料１１の間、および下電
極２と被溶接材料１２との間に、銅又は銅合金板の両面
にＣｏ又はＣｏ合金を１〜１００μｍ各種方法で被覆さ
せたもの、及び片面にＣｏ又はＣｏ合金を、他面にＮ
ｉ、Ｔｉ、Ｎｂ、Ｍｏ、Ｃｒ、Ｗのいずれかを被覆させ
たもの１７種類の各種箔状介在物９、１０を挟み、単相
交流溶接機を用いて、溶接電流２４５００Ａ、電極加圧
力２９４０Ｎ、通電時間８サイクルの溶接条件で溶接し
た。なお、被溶接材料は入荷したままの表面状態とし、
試験片の寸法は３０×２００ｍｍとし、これを２枚重ね
て３０ｍｍピッチで５点溶接した。箔状介在物９、１０
は被溶接材料と同じ寸法に切断して電極と被溶接物の間
に挟んで溶接した。電極の先端は溶接前に＃１０００の
エメリ−紙でドレッシングした。そして連続１２０００
点溶接し、溶接した試験片の評価は実施例１と同様に行
った。比較例として、箔状介在物の被覆厚さが、１μｍ
未満、及び１００μｍを越える場合を示した。また、従
来方法として、Ｃｕ単体の場合の電極寿命、及び箔状介
在物を用いないで同一条件で溶接した場合の電極寿命も
調べた。この結果を表７に示す。Embodiment 7 FIG. 5 is a schematic diagram showing Embodiment 7 according to the method of the present invention.
For the upper electrode 1 and the lower electrode 2, 16 mmφ of chrome copper corresponding to two types of JIS Z 3234 was used, the electrode tip shape was DR type, and 6 mmφ of the tip portion was R = 40 mm.
Holes 3 and 4 of 9 mmφ for cooling were formed in the electrodes 1 and 2, and water 7 and 8 were caused to flow through conduits 5 and 6 at a flow rate of 3 liter / min to cool the electrodes. Materials to be welded 11 and 12 are A
A 5082-O material that is an 1-Mg alloy, a material having a thickness of 1 mm, and a copper or copper alloy plate between the upper electrode 1 and the material 11 to be welded and between the lower electrode 2 and the material 12 to be welded. Coated on both sides with Co or Co alloy by various methods of 1 to 100 μm, and Co or Co alloy on one side and N on the other side.
i, Ti, Nb, Mo, Cr, W coated with 17 kinds of various foil-like inclusions 9 and 10 and using a single-phase AC welding machine, welding current 24500A, electrode pressure 2940N Welding was carried out under welding conditions of 8 cycles of energization time. In addition, the material to be welded should be in the surface condition as received,
The size of the test piece was 30 × 200 mm, and two pieces were stacked and welded at 5 points at a pitch of 30 mm. Foil inclusions 9, 10
Was cut to the same size as the material to be welded and sandwiched between the electrode and the object to be welded. The tip of the electrode was dressed with # 1000 emery paper before welding. And 12000 consecutively
The spot-welded and welded test pieces were evaluated in the same manner as in Example 1. As a comparative example, the coating thickness of the foil inclusion is 1 μm.
The case was less than 100 μm. Further, as a conventional method, the electrode life in the case of Cu alone and the electrode life in the case of welding under the same conditions without using foil-like inclusions were also examined. The results are shown in Table 7.
【００３０】[0030]
【表７】 [Table 7]
【００３１】前記実施例の抵抗溶接方法によれば、いず
れの箔状介在物を使用した場合も１２０００点溶接でき
て、箔状介在物の剥がれ荷重は１５０ｇ以下であり、全
てのナゲット径は４ｍｍ以上であった。即ち、電極寿命
は１２０００点（以上）であった。この時の電極先端状
態を感圧紙を用いて調べたが、溶接開始前と１２０００
点溶接後で電極先端の形状はほとんど変わっていなかっ
た。これに対し、比較例として用いたＣｏ又はＣｏ合金
の被覆厚さが１μｍ未満のものは、１５２２点で被溶接
材料と溶着し、ナゲット径が４ｍｍ以下になった。逆
に、Ｃｏ又はＣｏ合金の被覆厚さが１００μｍを超える
ものは、被溶接材料とは溶着しなかったが、１７５５点
でナゲット径が４ｍｍ以下になった。介在物の厚さが
０．０２ｍｍ未満のものは溶接で溶けて電極寿命は１６
１８点であり、１ｍｍを越えるものは溶接不可であっ
た。また、従来方法のＣｕ単体の場合の電極寿命は８１
１点であり、箔状介在物を使用しないで溶接したものの
電極寿命は５６４点であり、ナゲット径が規格以下にな
った。また、その時の電極先端形状は５０点目ですでに
上下電極とも中心部が凹形になっており、打点数が多く
なるに従って電極径が大きくなり、被溶接材料への当た
りが悪くなっていた。According to the resistance welding method of the above-mentioned embodiment, it is possible to weld 12000 points regardless of which foil inclusion is used, the peeling load of the foil inclusion is 150 g or less, and all the nugget diameters are 4 mm. That was all. That is, the electrode life was 12000 points (or more). The state of the electrode tip at this time was examined using pressure sensitive paper.
The shape of the electrode tip was almost unchanged after spot welding. On the other hand, the Co or Co alloy having a coating thickness of less than 1 μm used as a comparative example was welded to the material to be welded at 1522 points and had a nugget diameter of 4 mm or less. On the other hand, when the coating thickness of Co or Co alloy exceeds 100 μm, it was not welded to the material to be welded, but the nugget diameter was 4 mm or less at 1755 points. If the thickness of inclusions is less than 0.02 mm, it will be melted by welding and the electrode life will be 16
There were 18 points, and those exceeding 1 mm could not be welded. In addition, the life of the electrode is 81 when using the conventional Cu alone.
It was 1 point, the electrode life of the welding was 564 points without welding the foil-like inclusions, and the nugget diameter was below the standard. In addition, the electrode tip shape at that time was the 50th point, and the center of both the upper and lower electrodes had already been concave, and the electrode diameter increased as the number of hit points increased, making it difficult to hit the material to be welded. ..
【００３２】[0032]
【発明の効果】本発明に係る抵抗溶接方法によれば、ア
ルミニウム及びアルミニウム合金材料の抵抗溶接の際
に、十分なナゲット径と良好な圧こん表面が電極、被溶
接材料への溶着なしに連続して１００００点以上得ら
れ、圧延鋼板の溶接と同等の電極寿命が得られ、特に自
動車のアルミ化の最大のネックとされていた抵抗溶接の
改善に大きく寄与するものである。According to the resistance welding method of the present invention, when performing resistance welding of aluminum and aluminum alloy materials, a sufficient nugget diameter and a good indented surface are continuously formed without welding to the electrode and the material to be welded. It is possible to obtain more than 10,000 points and obtain an electrode life equivalent to that of welding a rolled steel sheet, and in particular, it greatly contributes to the improvement of resistance welding, which has been the biggest bottleneck in the aluminization of automobiles.
【図１】本発明の一実施例に係る抵抗溶接方法を示す模
式図。FIG. 1 is a schematic diagram showing a resistance welding method according to an embodiment of the present invention.
【図２】本発明の実施例における箔状介在物の剥がれ荷
重測定状況を示す正面図。FIG. 2 is a front view showing a peeling load measurement state of a foil-like inclusion in an example of the present invention.
【図３】本発明の実施例におけるピール試験状況を示す
斜視図。FIG. 3 is a perspective view showing a peel test situation in the example of the present invention.
【図４】本発明の一実施例に係る抵抗溶接方法の他の例
を示す模式図。FIG. 4 is a schematic view showing another example of the resistance welding method according to the embodiment of the present invention.
【図５】本発明の一実施例に係る抵抗溶接方法のさらに
他の例を示す模式図。FIG. 5 is a schematic view showing still another example of the resistance welding method according to the embodiment of the present invention.
【図６】従来の抵抗溶接方法を示す模式図。FIG. 6 is a schematic diagram showing a conventional resistance welding method.
１ 上電極 ２ 下電極 ３ 上電極の冷却穴 ４ 下電極の冷却穴 ５ 上電極の導管 ６ 下電極の導管 ７、８ 冷却水 ９、１０ 箔状介在物 １１、１２ 被溶接材料 １３ ナゲット １８ バネ秤 １９ クリップ ２０ 溶接箇所 ２１ ピール試験具 ２２、２３ 箔状介在物送りリール ２４、２５ 箔状介在物巻き取りリール ２６、２７ 箔状介在物巻き取りモーター ２８、２９、３０、３１ 支持ロール 1 Upper Electrode 2 Lower Electrode 3 Upper Electrode Cooling Hole 4 Lower Electrode Cooling Hole 5 Upper Electrode Pipe 6 Lower Electrode Pipe 7, 8 Cooling Water 9, 10 Foil-like Inclusion 11, 12 Welding Material 13 Nugget 18 Spring Scale 19 Clip 20 Welding point 21 Peel test tool 22, 23 Foil-shaped inclusion feeding reel 24, 25 Foil-shaped inclusion winding reel 26, 27 Foil-shaped inclusion winding motor 28, 29, 30, 31 Support roll
───────────────────────────────────────────────────── フロントページの続き (72)発明者 沖田 富晴 東京都千代田区丸の内２丁目６番１号 古 河アルミニウム工業株式会社内 (72)発明者 尾崎 正則 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 (72)発明者 折茂 尚夫 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 (72)発明者 杉森 幹弘 東京都千代田区丸の内２丁目６番１号 古 河電気工業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tomiharu Okita 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Aluminum Co., Ltd. (72) Masanori Ozaki 2-6-1 Marunouchi, Chiyoda-ku, Tokyo No. Furukawa Electric Co., Ltd. (72) Inventor Nao Origamo 2-6-1, Marunouchi, Chiyoda-ku, Tokyo No. 2 Furukawa Electric Co., Ltd. (72) Inventor, Mikihiro Sugimori 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd.
Claims (2)
の抵抗溶接にあたり、電極と被溶接材料との間に、銅又
は銅合金の両面にＮｉ又はＮｉ合金、ＴｉまたはＴｉ合
金、Ｎｂ又はＮｂ合金、Ｍｏ又はＭｏ合金、Ｗ又はＷ合
金、Ｃｒ又はＣｒ合金、Ｃｏ又はＣｏ合金のいずれかを
１〜１００μｍ被覆した厚さ０．０２〜１ｍｍの箔状介
在物を介して接合することを特徴とする、アルミニウム
及びアルミニウム合金材料の抵抗溶接方法。1. In resistance welding of aluminum and aluminum alloy materials, Ni or Ni alloy, Ti or Ti alloy, Nb or Nb alloy, Mo or Mo is provided on both surfaces of copper or copper alloy between an electrode and a material to be welded. Alloy, W or W alloy, Cr or Cr alloy, Co or Co alloy and bonded through a foil-like inclusion having a thickness of 0.02 to 1 mm coated with 1 to 100 μm, and aluminum and Resistance welding method for aluminum alloy materials.
の抵抗溶接にあたり、電極と被溶接材料との間に、銅又
は銅合金の表面にＮｉ又はＮｉ合金、Ｔｉ又はＴｉ合
金、Ｎｂ又はＮｂ合金、Ｍｏ又はＭｏ合金、Ｗ又はＷ合
金、Ｃｒ又はＣｒ合金、Ｃｏ又はＣｏ合金の中で、異な
った金属を片面ずつに、それぞれ１〜１００μｍ被覆し
た厚さ０．０２〜１ｍｍの箔状介在物を介して接合する
ことを特徴とする、アルミニウム及びアルミニウム合金
材料の抵抗溶接方法。2. In resistance welding of aluminum and aluminum alloy materials, Ni or Ni alloy, Ti or Ti alloy, Nb or Nb alloy, Mo or Mo is provided on the surface of copper or copper alloy between the electrode and the material to be welded. Among alloys, W or W alloys, Cr or Cr alloys, Co or Co alloys, different metals are bonded to each one side by 1 to 100 μm each through a foil-like inclusion having a thickness of 0.02 to 1 mm. A resistance welding method for aluminum and aluminum alloy materials, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143378A JP2744733B2 (en) | 1992-05-07 | 1992-05-07 | Resistance welding method for aluminum and aluminum alloy materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143378A JP2744733B2 (en) | 1992-05-07 | 1992-05-07 | Resistance welding method for aluminum and aluminum alloy materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05318136A true JPH05318136A (en) | 1993-12-03 |
| JP2744733B2 JP2744733B2 (en) | 1998-04-28 |
Family
ID=15337389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4143378A Expired - Lifetime JP2744733B2 (en) | 1992-05-07 | 1992-05-07 | Resistance welding method for aluminum and aluminum alloy materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2744733B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552573A (en) * | 1993-12-08 | 1996-09-03 | The Furukawa Electric Co., Ltd. | Resistance welding process for aluminum and aluminum alloy materials |
| EP0745451A1 (en) * | 1995-06-03 | 1996-12-04 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Electrode for resistance spot welding of aluminium sheets |
| WO2007090212A2 (en) | 2006-02-08 | 2007-08-16 | Fronius International Gmbh | Band for protecting the electrodes of a spot welding gun |
| CN100341657C (en) * | 2005-05-10 | 2007-10-10 | 武佩 | Resistive spot welding process |
| CN102133682A (en) * | 2011-03-18 | 2011-07-27 | 华霆（合肥）动力技术有限公司 | Resistance welding method |
| CN108098125A (en) * | 2017-12-27 | 2018-06-01 | 北京北冶功能材料有限公司 | A kind of foil material welding method |
| CN111451618A (en) * | 2020-04-03 | 2020-07-28 | 燕山大学 | Welding device and process for improving quality of antirust aluminum alloy welded joint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141387A (en) * | 1979-04-23 | 1980-11-05 | Hitachi Ltd | Spot welding method |
| JPS60221183A (en) * | 1984-04-13 | 1985-11-05 | Mitsubishi Electric Corp | Resistance welding device |
-
1992
- 1992-05-07 JP JP4143378A patent/JP2744733B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55141387A (en) * | 1979-04-23 | 1980-11-05 | Hitachi Ltd | Spot welding method |
| JPS60221183A (en) * | 1984-04-13 | 1985-11-05 | Mitsubishi Electric Corp | Resistance welding device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552573A (en) * | 1993-12-08 | 1996-09-03 | The Furukawa Electric Co., Ltd. | Resistance welding process for aluminum and aluminum alloy materials |
| EP0745451A1 (en) * | 1995-06-03 | 1996-12-04 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Electrode for resistance spot welding of aluminium sheets |
| CN100341657C (en) * | 2005-05-10 | 2007-10-10 | 武佩 | Resistive spot welding process |
| WO2007090212A2 (en) | 2006-02-08 | 2007-08-16 | Fronius International Gmbh | Band for protecting the electrodes of a spot welding gun |
| AT503193B1 (en) * | 2006-02-08 | 2007-10-15 | Fronius Int Gmbh | BAND TO PROTECT THE ELECTRODES OF A POINT WELDING TONG |
| EP2204253A1 (en) | 2006-02-08 | 2010-07-07 | Fronius International GmbH | Band for protecting electrodes of a spot welding gun. |
| CN102133682A (en) * | 2011-03-18 | 2011-07-27 | 华霆（合肥）动力技术有限公司 | Resistance welding method |
| CN108098125A (en) * | 2017-12-27 | 2018-06-01 | 北京北冶功能材料有限公司 | A kind of foil material welding method |
| CN108098125B (en) * | 2017-12-27 | 2020-07-03 | 北京北冶功能材料有限公司 | Foil strip welding method |
| CN111451618A (en) * | 2020-04-03 | 2020-07-28 | 燕山大学 | Welding device and process for improving quality of antirust aluminum alloy welded joint |
| CN111451618B (en) * | 2020-04-03 | 2021-03-19 | 燕山大学 | Welding device and process for improving quality of antirust aluminum alloy welded joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2744733B2 (en) | 1998-04-28 |
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