JPH04127972A - Resistance welding method for resin complex type metal plate - Google Patents
Resistance welding method for resin complex type metal plateInfo
- Publication number
- JPH04127972A JPH04127972A JP24798190A JP24798190A JPH04127972A JP H04127972 A JPH04127972 A JP H04127972A JP 24798190 A JP24798190 A JP 24798190A JP 24798190 A JP24798190 A JP 24798190A JP H04127972 A JPH04127972 A JP H04127972A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- current
- metal plate
- resin
- resistance welding
- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 101
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 77
- 239000002184 metal Substances 0.000 title claims abstract description 77
- 239000011347 resin Substances 0.000 title claims abstract description 39
- 229920005989 resin Polymers 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 15
- 238000010030 laminating Methods 0.000 claims abstract description 4
- 239000000805 composite resin Substances 0.000 claims description 37
- 239000004020 conductor Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 241001164374 Calyx Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- ZTXONRUJVYXVTJ-UHFFFAOYSA-N chromium copper Chemical compound [Cr][Cu][Cr] ZTXONRUJVYXVTJ-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Resistance Welding (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、制振鋼板や軽量化ラミネート鋼板などのよう
な複数枚の金属板の間に樹脂を積層してなる樹脂複合型
金属板を他の金属部材に抵抗溶接する方法に関する。Detailed Description of the Invention (Industrial Application Field) The present invention provides a resin composite metal plate made by laminating resin between a plurality of metal plates, such as a damping steel plate or a lightweight laminated steel plate, to other metal plates. The present invention relates to a method for resistance welding metal members.
（従来の技術）
例えば、第１図に示すような２枚の金属１１ａ１ｂの間
に粘弾性樹脂２を挟んだ樹脂複合型金属板１は、近年、
自動車や家電製品などの軽量化用あるいは制振用の材料
としての利用が進んでいる。(Prior Art) For example, a resin composite metal plate 1 in which a viscoelastic resin 2 is sandwiched between two metal sheets 11a1b as shown in FIG. 1 has been developed in recent years.
It is increasingly being used as a material for reducing weight or damping vibrations in automobiles, home appliances, etc.
ところが、この樹脂複合型金属板は中間の樹脂層が絶縁
材料であるため、他の金属部材に抵抗溶接、例えばスポ
ット溶接する場合には中間の樹脂層を挟む金属板どうし
を電気的に接続する手段を必要とする。However, in this resin composite metal plate, the intermediate resin layer is an insulating material, so when resistance welding, such as spot welding, to other metal members, the metal plates sandwiching the intermediate resin layer must be electrically connected to each other. Requires means.
従来、その手段として、第２図に示すように重ね合わせ
た樹脂複合型金属板１と他の金属板３との端部に補助通
電回路４を設ける方法や第３図に示すように中間の樹脂
２に金属粉末（例えば亜鉛、アルミニウム、銅）などの
導電性材料５を分散させて樹脂に導電性を付与する方法
がある。Conventionally, this has been achieved by providing an auxiliary energizing circuit 4 at the end of the overlapping resin composite metal plate 1 and another metal plate 3 as shown in FIG. There is a method of dispersing conductive material 5 such as metal powder (for example, zinc, aluminum, copper) in resin 2 to impart conductivity to the resin.
補助通電回路４を設けて抵抗溶接する方法では、補助通
電回路４を通して樹脂複合型金属板１と他の金属板３に
分流量［６が流れ、その分流電流６により樹脂複合型金
属板１を構成する金属板１ａ。In the method of resistance welding by providing an auxiliary energizing circuit 4, a divided current [6 flows through the auxiliary energizing circuit 4 to the resin composite metal plate 1 and other metal plates 3, and the shunt current 6 causes the resin composite metal plate 1 to flow through the auxiliary energizing circuit 4. Constituent metal plate 1a.
Ｉｂがジュール加熱され、溶接電極７直下の樹脂２が軟
化し、金属板１ａ、ｌｂどうしが接触し、本通電に至る
。導電性材料を分散させた樹脂複合型金属板の場合には
、溶接電流が導電性材料５を介して流れ、その発熱によ
り樹脂２が軟化し、金属板１ａ、Ｉｂどうしが電気的に
接触し、本通電に至る。Ib is heated by Joule, the resin 2 directly under the welding electrode 7 is softened, and the metal plates 1a and lb come into contact with each other, leading to main energization. In the case of a resin composite metal plate in which a conductive material is dispersed, welding current flows through the conductive material 5, and the heat generated softens the resin 2, causing the metal plates 1a and Ib to electrically contact each other. , leading to the main energization.
（発明が解決しようとする課Ｈ）
樹脂複合型金属板の抵抗溶接では、上記のような方法が
とられているが、樹脂複合型金属板は中間の樹脂が電気
的に絶縁材料であるため、通常の金属板どうしを抵抗溶
接する場合と比較して、中間樹脂層を挟むそれぞれの金
属板の間の接触抵抗は高い。中間の樹脂に導電性材料を
分散させているものは、接触抵抗は低いものの、それで
も通常の金属板に比べれば高い。(Problem H to be solved by the invention) The above-mentioned method is used for resistance welding of resin composite metal plates, but since the intermediate resin in resin composite metal plates is an electrically insulating material, , the contact resistance between the respective metal plates sandwiching the intermediate resin layer is high compared to the case where metal plates are resistance welded together. Those with conductive material dispersed in the intermediate resin have lower contact resistance, but are still higher than normal metal plates.
接触抵抗が高いと、溶接電流を通電する際、樹脂層での
発熱量が大きくなり、溶接部の強度を安定化させる目的
で溶接を流を高めると、樹脂複合型金属板を構成する金
属板の間でちりが生じたり、溶接部周辺の樹脂がガス化
したりする。その結果、溶接部付近にふくれを生したり
、抵抗溶接が板端面の付近で行われるときには、第４図
に示すように板端面から発生したちりやガスが吹き出し
、端面に開口部８を形成する場合がある。溶接部付近の
ふくれは樹脂複合型金属板の外観を損なうのみならず、
溶接部の強度を低下させる。また、端面の開口部はそこ
から環境中の水や他の腐食性物質が浸入し、樹脂複合型
金属板の耐食性を損ねる。If the contact resistance is high, the amount of heat generated in the resin layer will increase when welding current is applied, and if the welding flow is increased in order to stabilize the strength of the weld, the amount of heat generated between the metal plates that make up the resin composite metal plate will increase. This may cause dust to form or the resin around the weld to gasify. As a result, when a bulge occurs near the welded part, or when resistance welding is performed near the edge of the plate, dust and gas generated from the edge of the plate blow out, forming an opening 8 on the edge, as shown in Figure 4. There are cases where Blisters near welds not only spoil the appearance of the resin composite metal plate, but also
Reduces the strength of the weld. Furthermore, water and other corrosive substances in the environment enter through the openings in the end faces, impairing the corrosion resistance of the resin composite metal plate.
なお、第４図において、符号９は熔融ナゲ・７トを示す
。In addition, in FIG. 4, reference numeral 9 indicates a melting point 7.
上記のふくれや開口部は低い溶接電流値でも発生する０
通常の金属板の抵抗溶接では相手材との間からちりが吹
き出すか、または溶接電極が金属板に溶着する溶接電流
値が適正溶接電流範囲の上限となる。これに対して、樹
脂複合型金属板の抵抗溶接では必要な溶接部強度が得ら
れる溶接電流値、例えばスポット溶接ではｔＪＴ（ｔは
板厚）以上の直径のナゲツトが形成される溶接電流値よ
り高く、ふくれや開口部が形成される溶接電流値より低
い範囲が適正溶接電流範囲となるが、ふくれや関口部が
形成される溶接電流値は通常の金属板の抵抗溶接で相手
材との間からちりが吹き出すか、または溶接電極が金属
板に溶着する溶接電流値よりも低い、このため、樹脂複
合型金属板の抵抗溶接は、通常の金属板の抵抗溶接に比
べて適正溶接を流範囲が狭く、溶接条件の管理が難しい
。The above bulges and openings occur even at low welding current values.
In ordinary resistance welding of metal plates, the upper limit of the appropriate welding current range is the welding current value at which dust blows out from between the welding electrode and the metal plate or the welding electrode welds to the metal plate. On the other hand, in resistance welding of resin composite metal plates, the welding current value that provides the necessary weld strength, for example, in spot welding, the welding current value that forms a nugget with a diameter of tJT (t is the plate thickness) or more. The appropriate welding current range is higher than the welding current value at which bulges and openings are formed, but the welding current value at which bulges and openings are formed is the welding current value that is lower than the welding current value at which bulges and openings are formed. The welding current value is lower than that at which dust blows out or the welding electrode is welded to the metal plate.For this reason, resistance welding of resin composite metal plates has a lower flow range for proper welding than resistance welding of ordinary metal plates. The area is narrow, making it difficult to manage welding conditions.
本発明の！ｉＨは、このような問題点を解消することに
ある。即ち、本発明の目的は高い溶接電流値で溶接して
もふくれや開口部が生しない、適正溶接電流範囲の広い
樹脂複合型金属板の抵抗溶接方法を提供することにある
。The invention! iH aims to solve these problems. That is, an object of the present invention is to provide a resistance welding method for resin composite metal plates that does not produce blisters or openings even when welded at a high welding current value and has a wide range of appropriate welding current.
（課題を解決するための手段）
樹脂複合型金属板の抵抗溶接において、予め溶接１を極
面下の中間樹脂を排除し、樹脂複合型金属板を構成する
金属板どうし、或いは金属板と中間樹脂中の導電性材料
とを接触させ、その部分の接触抵抗を低下させることに
よって、中間樹脂層での発熱を抑制すれば、ふくれや開
口部の形成を防止することはできる。そこで、本発明者
らは予め溶接′Ｉ！Ｘ極直下の中間樹脂を排除する方法
について種々検討を行った。その結果、抵抗溶接の初期
に接合部を溶接電極で加圧した状態で、電流値の低い電
流を短時間通電すると中間樹脂がガス化することなく軟
化して排除されることを見出した。(Means for solving the problem) In resistance welding of resin composite metal plates, welding 1 is performed in advance by removing the intermediate resin under the extreme surface, and welding between the metal plates constituting the resin composite metal plate or between the metal plates and the intermediate resin. Formation of blisters and openings can be prevented by suppressing heat generation in the intermediate resin layer by bringing it into contact with a conductive material in the resin and lowering the contact resistance at that portion. Therefore, the present inventors pre-welded 'I! Various studies were conducted on methods for eliminating the intermediate resin directly below the X pole. As a result, they found that when a low current is applied for a short period of time while the joint is pressurized with a welding electrode at the beginning of resistance welding, the intermediate resin is softened and removed without being gasified.
ここに本発明の要旨は「複数枚の金属板の間に樹脂を積
層してなる樹脂複合型金属板を他の金属部材に抵抗溶接
する方法において、接合部を溶接電極で加圧した状態で
、下記（１）式を満足する初期電流を下記（２）式を満
足する通電時間で通電した後、本溶接電流を通電するこ
とを特徴とする樹脂複合型金属板の抵抗溶接方法」にあ
る。Here, the gist of the present invention is ``In a method of resistance welding a resin composite metal plate, which is made by laminating resin between multiple metal plates, to another metal member, the following steps are performed while the joint is pressurized with a welding electrode. A method for resistance welding resin composite metal plates, characterized in that after applying an initial current that satisfies formula (1) for a duration that satisfies formula (2) below, a main welding current is applied.
ｏ、６ｒｚ≦１１≦０．８１． ・・・（１）ｔ１
≧（１／６）ｔ ・・・（２）
ここで、
Ｉｌ：初期電流（Ａ）
Ｉ２：本溶接電流（Ａ）
ｔｌ：初期電流の通電時間（秒）
ｔ ：樹脂複合型金属板の板厚（關）
前記本溶接電流とは、必要な溶接部強度が得られる溶接
電流、例えばスポ７）溶接では４．Ｉ”Ｅ（ｔは板厚）
以上の直径のナゲツトが形成される溶接電流値より高い
電流値の電流を意味する。o, 6rz≦11≦0.81. ...(1) t1
≧(1/6)t...(2) Here, Il: Initial current (A) I2: Main welding current (A) tl: Initial current application time (seconds) t: Resin composite metal plate Thickness (related) The above-mentioned main welding current is a welding current that provides the necessary weld strength, for example, 4. I”E (t is plate thickness)
It means a current with a higher current value than the welding current value at which a nugget with a diameter of 100 mL or more is formed.
（作用） 以下、本発明について詳細に説明する。(effect) The present invention will be explained in detail below.
本発明の抵抗溶接方法では、樹脂複合型金属板を他の金
属部材に重ね合わせ、その接合部を溶接電極で加圧した
状態で、本溶接電流■２を通電する前に本溶接電流Ｉ８
より低い初Ｍ電流１１を通電する。In the resistance welding method of the present invention, a resin composite metal plate is stacked on another metal member, the joint is pressurized with a welding electrode, and the main welding current I8 is applied before applying the main welding current 2.
A lower initial M current 11 is applied.
これは、溶接電極直下の中間樹脂をガス化させることな
く樹脂を軟化させて排除するためである。This is to soften and remove the resin without gasifying the intermediate resin directly under the welding electrode.
このためには、初期電流１１は上記（１）式を満足し、
且つ上記（２）式を満足する時間で通電しなければなら
ない。For this purpose, the initial current 11 must satisfy the above formula (1),
In addition, the current must be applied for a time that satisfies the above equation (2).
初期電流１１が本溶接電流［、の０．６倍より低い場合
は、溶接電極直下の中間樹脂はガス化しないが軟化不足
により中間樹脂が有効に溶接電極の加圧力によって排除
されない、初期電流ｒ１が本溶接電流りの０．８倍を超
える場合は、初ｊｔＪ］電流１１を通電中に中間樹脂が
ガス化し、溶接部近傍でふくれを生したり、溶接が板端
面近傍であるときには板端面に開口部が形成される。ま
た、初期電流Ｉ、の通電時間ｔ１が樹脂複合型金属板の
板厚ｔの１／６に相当する時間（秒）より短い場合には
、中間樹脂が有効に排除されない。If the initial current 11 is lower than 0.6 times the main welding current [, the intermediate resin directly under the welding electrode will not be gasified, but the intermediate resin will not be effectively removed by the pressure of the welding electrode due to insufficient softening, and the initial current r1 If the initial welding current exceeds 0.8 times the main welding current, the intermediate resin may gasify during the application of the current 11, causing blisters near the weld, or when welding is near the plate end, the plate end An opening is formed in the. Further, if the initial current I is applied for a period t1 shorter than the time (seconds) corresponding to 1/6 of the thickness t of the resin composite metal plate, the intermediate resin is not effectively removed.
初期電流１１によりガス化さるることなく軟化された溶
接電極直下の中間樹脂は溶接電極の加圧によって周囲に
排除される。抵抗溶接では溶接電極で被接合材を加圧し
ながら溶接が行われているが、初期電流■１により軟化
した樹脂を効率よく除去するためには、電極の加圧力は
樹脂複合型金属板の板厚に応じて決定するのがよい０例
えば板厚が０．８＋＊ｍの場合には１５０〜２５０ｋｇ
ｆ程度の加圧力とするのがよい。The intermediate resin directly under the welding electrode, which has been softened without being gasified by the initial current 11, is expelled to the surroundings by the pressurization of the welding electrode. In resistance welding, welding is performed while applying pressure to the materials to be joined using a welding electrode.In order to efficiently remove the resin softened by the initial current It is best to decide according to the thickness. For example, if the plate thickness is 0.8 + * m, it is 150 to 250 kg.
It is preferable to set the pressure to about f.
接合部の中間樹脂が排除されることにより、樹脂複合型
金属板を構成する金ｉ板どうし、或いは樹脂複合型金属
板が樹脂中に導電性材料を分散させたものである場合に
は金属板と導電性材料とが接触するので、溶接１掻直下
で局部的に接触抵抗が低下する。接触抵抗が低下すると
本溶接電流ｌ。By eliminating the intermediate resin at the joint, the metal plates that make up the resin composite metal plate, or if the resin composite metal plate is made by dispersing a conductive material in the resin, the metal plate Since the conductive material and the conductive material come into contact with each other, the contact resistance decreases locally just below the first weld. When the contact resistance decreases, the main welding current l increases.
を通電する際に、中間樹脂層での発熱が抑制され、本溶
接電流■２を最初から通電する従来の抵抗溶接方法に比
べ、本溶接を流の通電中におけるふくれが形成される電
流値および端面に開口部が形成される電流値は高くなり
、適正溶接電流範囲が拡大される。When electricity is applied, heat generation in the intermediate resin layer is suppressed, and compared to the conventional resistance welding method in which the main welding current (2) is applied from the beginning, the current value at which a bulge is formed during main welding is reduced. The current value at which an opening is formed in the end face becomes high, and the appropriate welding current range is expanded.
次に実施例により本発明の効果を示す。Next, the effects of the present invention will be illustrated by examples.
（実施例）
板厚がそれぞれ０．４ｍ−又は０．８ｍｍの２枚の鋼板
の間にＡＳＴＭ ２００メツシユ以下のＮｉ粉末を３ｖ
ｏ１％含有するポリオレフィン系樹脂を厚さ０．０５ｍ
ｍで積層してなる樹脂複合型金属板と、板厚が０．８ｍ
−又は１．６１の鋼板（相手材）を準備した。(Example) 3V of Ni powder of ASTM 200 mesh or less was placed between two steel plates each having a thickness of 0.4m or 0.8mm.
0.05m thick polyolefin resin containing o1%
A resin composite metal plate laminated with a thickness of 0.8 m and a plate thickness of 0.8 m.
- or 1.61 steel plate (counterpart material) was prepared.
これらの樹脂複合型金属板と＃板とを重ね、樹脂複合型
金属板の板端から板中央へ２０ｍｍ入った位置にダイレ
クトスポット溶接を施した。ダイレクトスポット溶接は
、溶接電極にクロム銅合金ドーム型電極を用いて第１表
に示される溶接条件で行い、４ａの大きさのナゲツト径
が得られる溶接電流値および溶接部周辺の樹脂複合型金
属板にふくれが生じたときの溶接ｉｉ電流値は板端面が
らちりやガスが吹き出して開口部が生じたときの溶接電
流値を調べ、適正溶接電流範囲を求めた。その結果を同
じく第１表に示す。These resin composite metal plates and the # plate were stacked, and direct spot welding was performed at a position 20 mm from the edge of the resin composite metal plate to the center of the plate. Direct spot welding is performed using a chromium-copper alloy dome-shaped welding electrode under the welding conditions shown in Table 1, and the welding current value and resin composite metal around the welded area are determined to obtain a nugget diameter of 4a. For the welding current value when a bulge occurs in the plate, the welding current value when the plate end face cracks or gas blows out to form an opening was determined to determine the appropriate welding current range. The results are also shown in Table 1.
第１表から、初期通電したのちに本溶接電流を通電する
本発明方法でスポット溶接した漱１〜Ｎｉ１５の本発明
例は、初期１１を行わずにスポット溶接した階１２およ
び階１３の従来例に比べ、適正溶接電流範囲が拡大して
いることがわかる。しかし、Ｎｃｉ６〜Ｎｆｌｌｌの比
較例のように初期通電したのちに本溶接電流を通電する
方法でスポット溶接しても、初期通電の電流値又は通電
時間が本発明で規定する範囲から外れると適正溶接電流
範囲は拡大されていない。From Table 1, the examples of the present invention of Sake 1 to Ni15, which were spot welded by the method of the present invention in which the main welding current is applied after the initial energization, are the conventional examples of floors 12 and 13, which were spot welded without performing the initial 11. It can be seen that the appropriate welding current range has expanded compared to the above. However, even if spot welding is performed by applying the main welding current after initial energization as in the comparative example of Nci6 to Nflll, if the initial energization current value or energization time falls outside the range specified by the present invention, proper welding will occur. The current range has not been expanded.
（以下、余白）
（発明の効果）
本発明方法によれば、従来の方法に比べて高い溶接ｉｉ
流でもふくれや開口部が生じにくく、樹脂複合型金属板
の抵抗溶接における適正溶接ｉ電流範囲が拡がるので溶
接条件の管理が容易である。(Hereinafter, blank space) (Effects of the invention) According to the method of the present invention, the welding rate is higher than that of the conventional method.
Blisters and openings are less likely to occur even with current, and the range of appropriate welding i current in resistance welding of resin composite metal plates is expanded, making it easy to manage welding conditions.
第１図は、樹脂複合型金属板の一例を示す一部破断の斜
視図、
第２図は、補助通電回路を用いる樹脂複合型金属板の抵
抗溶接の説明図、
第３図は、中間樹脂に導電性材料を分散させた樹脂複合
型金属板の抵抗溶接の説明図、第４図は、開口部が端面
に発止した状態を説明する図、である。
１：樹脂複合型金属板、１ａ：金属板、２ｂ＝金属板、
２：樹脂層、３：他の金属板、４：補助回路、５：導電
性材料、６：分流電流、７：溶接電極、８：開口部。
出願人 住友金属工業株式会社 （ほか１名）代理人
弁理士 穂 上 照 忠（ばか１名）誉ｌ命
婆３０
第２
固
萼４０Fig. 1 is a partially cutaway perspective view showing an example of a resin composite metal plate, Fig. 2 is an explanatory diagram of resistance welding of a resin composite metal plate using an auxiliary current supply circuit, and Fig. 3 is an intermediate resin composite metal plate. FIG. 4 is an explanatory diagram of resistance welding of a resin composite metal plate in which a conductive material is dispersed. 1: resin composite metal plate, 1a: metal plate, 2b = metal plate,
2: resin layer, 3: other metal plate, 4: auxiliary circuit, 5: conductive material, 6: shunt current, 7: welding electrode, 8: opening. Applicant: Sumitomo Metal Industries, Ltd. (and 1 other person) Agent
Patent Attorney Terutada Hogami (1 idiot) Homareba 30 2nd Hard Calyx 40
Claims (1)
属板を他の金属部材に抵抗溶接する方法において、接合
部を溶接電極で加圧した状態で、下記（１）式を満足す
る初期電流を下記（２）式を満足する通電時間で通電し
た後、本溶接電流を通電することを特徴とする樹脂複合
型金属板の抵抗溶接方法。 ０．６Ｉ＿２≦Ｉ＿１≦０．８Ｉ＿２・・・（１）ｔ＿
１（１／６）ｔ・・・（２） ここで、 Ｉ＿１：初期電流（Ａ） Ｉ＿２：本溶接電流（Ａ） ｔ＿１：初期電流の通電時間（秒） ｔ：樹脂複合型金属板の板厚（ｍｍ）[Claims] In a method of resistance welding a resin composite metal plate, which is formed by laminating resin between a plurality of metal plates, to another metal member, the following (1) ) A resistance welding method for resin composite metal plates, characterized in that after applying an initial current that satisfies the following equation (2) for an energization time that satisfies the following equation (2), a main welding current is applied. 0.6I_2≦I_1≦0.8I_2...(1)t_
1 (1/6)t...(2) Here, I_1: Initial current (A) I_2: Main welding current (A) t_1: Initial current application time (seconds) t: Resin composite metal plate plate Thickness (mm)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02247981A JP3118823B2 (en) | 1990-09-17 | 1990-09-17 | Resistance welding method for resin composite type metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02247981A JP3118823B2 (en) | 1990-09-17 | 1990-09-17 | Resistance welding method for resin composite type metal plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04127972A true JPH04127972A (en) | 1992-04-28 |
| JP3118823B2 JP3118823B2 (en) | 2000-12-18 |
Family
ID=17171422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02247981A Expired - Fee Related JP3118823B2 (en) | 1990-09-17 | 1990-09-17 | Resistance welding method for resin composite type metal plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3118823B2 (en) |
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1990
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Also Published As
| Publication number | Publication date |
|---|---|
| JP3118823B2 (en) | 2000-12-18 |
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