JP2672182B2 - Joining method for steel-based materials and aluminum-based materials - Google Patents

Joining method for steel-based materials and aluminum-based materials

Info

Publication number
JP2672182B2
JP2672182B2 JP2191616A JP19161690A JP2672182B2 JP 2672182 B2 JP2672182 B2 JP 2672182B2 JP 2191616 A JP2191616 A JP 2191616A JP 19161690 A JP19161690 A JP 19161690A JP 2672182 B2 JP2672182 B2 JP 2672182B2
Authority
JP
Japan
Prior art keywords
aluminum
steel
based material
welding
clad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2191616A
Other languages
Japanese (ja)
Other versions
JPH0481288A (en
Inventor
周平 井土
英司 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP2191616A priority Critical patent/JP2672182B2/en
Publication of JPH0481288A publication Critical patent/JPH0481288A/en
Application granted granted Critical
Publication of JP2672182B2 publication Critical patent/JP2672182B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • B23K26/323—Bonding taking account of the properties of the material involved involving parts made of dissimilar metallic material
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/18—Dissimilar materials
    • B23K2103/20—Ferrous alloys and aluminium or alloys thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は炭素鋼又はステンレス鋼等の鋼系材料とアル
ミニウム又はその合金からなるアルミニウム系材料とを
接合して一体化する鋼系材料とアルミニウム系材料との
接合方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a steel-based material and an aluminum for joining and integrating a steel-based material such as carbon steel or stainless steel and an aluminum-based material made of aluminum or an alloy thereof. The present invention relates to a joining method with a system material.

［従来の技術］ 従来、異種金属の接合方法、特に炭素鋼又はステンレ
ス鋼等の鋼系材料（以下、単に鋼材という）と、アルミ
ニウム又はその合金（以下、単にアルミニウム材とい
う）とを溶接する方法として、以下に示す方法が公知で
ある。[Prior Art] Conventionally, a method for joining dissimilar metals, particularly a method for welding a steel-based material such as carbon steel or stainless steel (hereinafter simply referred to as steel material) and aluminum or an alloy thereof (hereinafter simply referred to as aluminum material) As the above, the following method is known.

鋼材の片面にアルミニウムの皮膜を形成した所謂ア
ルミナイズド鋼板をインサート材として使用し、このイ
ンサート材の鋼板側と鋼材とを接触させ、アルミニウム
皮膜面とアルミニウム材とを接触させてこれらを配置
し、抵抗スポット溶接する方法。A so-called aluminized steel sheet having a film of aluminum formed on one surface of the steel material is used as an insert material, and the steel sheet side of this insert material is contacted with the steel material, and these are arranged by contacting the aluminum film surface and the aluminum material, Resistance spot welding method.

鋼材とアルミニウム材とを積層させたクラッド材を
インサート材とし、被溶接材及び前記インサート材の同
種金属同士を接触させて、両者を抵抗スポット溶接する
方法。A method in which a clad material obtained by laminating a steel material and an aluminum material is used as an insert material, the material to be welded and the same metal of the insert material are brought into contact with each other, and both are resistance spot welded.

鋼材とアルミニウム材とを直接又は中間にインサー
ト材を介在させて摩擦溶接する方法。A method of friction welding a steel material and an aluminum material directly or in the middle with an insert material interposed.

鋼材とアルミニウム材とを直接又は中間にインサー
ト材を介在させて超音波溶接する方法。A method of ultrasonically welding a steel material and an aluminum material directly or in the middle with an insert material interposed.

鋼材とアルミニウム材とを直接又は中間にインサー
ト材を介在させて電子ビーム溶接するか、又はレーザ溶
接する方法。A method of electron beam welding or laser welding of a steel material and an aluminum material directly or in the middle with an insert material interposed.

［発明が解決しようとする課題］ しかしながら、これらの方法はいずれも以下に示すよ
うな問題点がある。[Problems to be Solved by the Invention] However, all of these methods have the following problems.

第８図は及びの方法で使用する抵抗スポット溶接
の原理を示す模式図である。即ち、被溶接部材である鋼
材１とアルミニウム材２との間にインサート材としての
クラッド材３を配置してこれらを重ねる。クラッド材３
は鋼系部材４とアルミニウム系部材５との積層体であ
る。そして、チップ６を介して母材の鋼材１とアルミニ
ウム材２とインサート材３を加圧しつつ、通電し、これ
らを局部的に溶融させて一体化する。この場合に、母材
が鋼材１とアルミニウム材２とからなる異種金属同士で
あるときは、第９図に示すように、溶接金属中に硬くて
脆いFe−Al金属間化合物７が生成する。このため、得ら
れる溶接継手の強度のバラツキが大きく、延性が低いと
いう問題点がある。FIG. 8 is a schematic diagram showing the principle of resistance spot welding used in the above methods. That is, the clad material 3 as an insert material is arranged between the steel material 1 and the aluminum material 2 which are the members to be welded, and these are stacked. Clad material 3
Is a laminated body of a steel-based member 4 and an aluminum-based member 5. Then, the base steel material 1, the aluminum material 2, and the insert material 3 are pressed through the chip 6 while being energized, and these are locally melted and integrated. In this case, when the base materials are different metals composed of the steel material 1 and the aluminum material 2, as shown in FIG. 9, a hard and brittle Fe-Al intermetallic compound 7 is generated in the weld metal. Therefore, there is a problem that the strength of the obtained welded joint varies greatly and the ductility is low.

また、溶接作業時にそれらの部材の両側にチップ６を
位置させるための空間が必要であり、接合部材の形状や
寸法が制限されるという問題点がある。Further, there is a problem that a space for locating the tip 6 is required on both sides of these members at the time of welding work, and the shape and size of the joining member are limited.

更に、溶接部の圧痕が表面に残り、溶接部の外観が劣
るため、溶接部が直接外面となる場合には、商品価値が
劣化するという問題点もある。Further, since the impression of the weld remains on the surface and the appearance of the weld is inferior, there is a problem that the commercial value is deteriorated when the weld directly becomes the outer surface.

の摩擦溶接は接合すべき片方の部材を回転させ、接
合面を摩擦により加熱し、適当な温度で回転を停止し、
軸方向に圧力を加えて溶接を行う方法であり、母材の溶
融は起こらない。従って、鋼材とアルミニウム材との接
合が可能であるが、少なくとも一方の母材を回転させる
必要があり、その形状がおおむね棒状又は管状のものに
しか適用できないという制約がある。Friction welding involves rotating one member to be joined, heating the joint surface by friction, and stopping the rotation at an appropriate temperature.
This is a method in which welding is performed by applying pressure in the axial direction, and the base material does not melt. Therefore, it is possible to join a steel material and an aluminum material, but it is necessary to rotate at least one of the base materials, and there is a restriction that the shape can be applied only to a bar shape or a tubular shape.

の摩擦溶接は、振動子によって電気エネルギを機械
的エネルギである超音波振動に変換し、適当な形状のチ
ップを有するバーを通じて超音波振動を溶接部に伝える
と共に被溶接材を加圧する溶接方法である。Friction welding is a welding method that uses a vibrator to convert electrical energy into ultrasonic vibration, which is mechanical energy, transmits the ultrasonic vibration to the weld through a bar that has a tip with an appropriate shape, and pressurizes the workpiece. is there.

その原理は超音波振動による被溶接材表面の摩擦によ
り表面の汚れが取れ、酸化膜が破れて新生面が表れたと
ころで被溶接材を相互に加圧及び接合するものである。
局部的には熱が発生するが、被溶接材の溶融は発生せ
ず、被溶接材全体の温度が上がることはない。従って、
鋼材とアルミニウム材との接合が可能であるが、被溶接
材の形状が薄板又は細い棒状に限られ、被溶接材の形状
の制約を受けるという問題点がある。また、，の抵
抗スポット溶接と同様に、溶接作業時に被溶接材の両側
に作業のための空間が必要であり、この点からも接合す
べき被溶接材の形状が制限されるという問題点がある。
更に、溶接部の圧痕が表面に残り、溶接部の外観が劣る
ため、溶接部が直接外面に現れると商品価値が劣化する
という問題点もある。The principle is that when the surface of the material to be welded is rubbed by ultrasonic vibrations, the surface of the material to be cleaned is removed and the oxide film is broken and a new surface appears.
Although heat is locally generated, the material to be welded is not melted and the temperature of the entire material to be welded does not rise. Therefore,
Although it is possible to join a steel material and an aluminum material, there is a problem that the shape of the material to be welded is limited to a thin plate or a thin rod, and the shape of the material to be welded is restricted. Also, similar to the resistance spot welding of (1), a space for work is required on both sides of the material to be welded at the time of welding work, and from this point, there is a problem that the shape of the material to be welded is limited. is there.
Furthermore, since the impression of the weld remains on the surface and the appearance of the weld is inferior, there is a problem that the commercial value deteriorates if the weld appears directly on the outer surface.

の電子ビーム溶接法又はレーザ溶接法は、所謂高エ
ネルギ密度溶接法であり、ビームを極めて小さくスポッ
トに集中させることにより、加熱部を絞ることができる
ので、溶け込みが深く、高速溶接が可能である。しかし
ながら、鋼材とアルミニウム材とを溶接すると、中間に
インサート材を挿入しても、溶接金属中に硬くて脆いFe
−Al金属間化合物が形成されるため、継手強度が低く、
且つ安定性が悪いという問題点がある。The electron beam welding method or laser welding method of is a so-called high energy density welding method. Since the heating part can be narrowed by concentrating the beam on a spot that is extremely small, the penetration is deep and high-speed welding is possible. . However, when welding a steel material and an aluminum material, even if an insert material is inserted in the middle, it is hard and brittle in the weld metal.
-Al intermetallic compound is formed, so the joint strength is low,
Moreover, there is a problem that the stability is poor.

以上述べたように、従来の技術は、継手強度が低く信
頼性が低いと共に、接合部材に空間面及び形状面での制
約があり、例えば大面積の薄板同士の接合には向いてい
ないとか、溶接部が外面に現れる場合に圧痕が残り、商
品価値が劣化するという点で高品質の溶接接合部を得る
には不十分であった。As described above, the conventional technology has low joint strength and low reliability, and there are restrictions on the space surface and the shape surface of the joining member, and for example, it is not suitable for joining large-area thin plates, It was insufficient to obtain a high quality welded joint in that indentation remains when the welded portion appears on the outer surface and the commercial value deteriorates.

本発明はかかる問題点に鑑みてなされたものであっ
て、十分な継手強度を有すると共に、接合部材に対する
空間面及び形状面の制約を解消して設計の自由度を向上
させることができ、溶接部が商品の外面に現れることを
回避することができる鋼系材料とアルミニウム系材料と
の接合方法を提供することを目的とする。The present invention has been made in view of the above problems, and while having sufficient joint strength, it is possible to improve the degree of freedom in design by eliminating the constraints of the space surface and the shape surface for the joining member. An object of the present invention is to provide a method for joining a steel-based material and an aluminum-based material that can prevent the portion from appearing on the outer surface of the product.

［課題を解決するための手段］ 本発明に係る鋼系材料とアルミニウム系材料との接合
方法は、被溶接材である鋼系材料とアルミニウム系材料
との間に鋼系部材とアルミニウム系部材とを積層したク
ラッド材を前記鋼系部材を前記鋼系材料に、前記アルミ
ニウム系部材を前記軽系材料に接触させて配置し、前記
クラッド材と鋼系部材及びアルミニウム系材料とを異種
金属が溶融しあわない溶接条件でレーザ溶接法により接
合して一体化することを特徴とする。なお、アルミニウ
ム系部材とはアルミニウム又はアルミニウム合金からな
る部材をいう。[Means for Solving the Problems] A method for joining a steel-based material and an aluminum-based material according to the present invention includes a steel-based member and an aluminum-based member between a steel-based material and an aluminum-based material, which are materials to be welded. The steel-based material is placed in contact with the steel-based material, and the aluminum-based material is placed in contact with the light-based material, and the clad material, the steel-based material and the aluminum-based material are melted by different metals. It is characterized in that they are joined and integrated by a laser welding method under welding conditions that do not match. The aluminum-based member is a member made of aluminum or aluminum alloy.

［作用］ 本発明においては、予め他の方法にて接合された鋼系
部材とアルミニウム系部材とからなるクラッド材を被接
合材である鋼系材料とアルミニウム系材料との間に配置
する。この場合に、前記鋼系部材と鋼系材料とが接触
し、前記アルミニウム系部材とアルミニウム系材料とが
接触するようにする。その後、これらの材料のうち同種
系金属材料同士をレーザ溶接により接合するが、そのレ
ーザ溶接条件は対象とする部材の種類、化学組成、板厚
及び表面状態等から、クラッド材の接合面を超えて溶融
が起こらないような適切な条件を選ぶ。必要に応じて、
フィラワイヤを使用してもよい。[Operation] In the present invention, a clad material composed of a steel-based member and an aluminum-based member that are previously bonded by another method is arranged between the steel-based material and the aluminum-based material that are the materials to be bonded. In this case, the steel-based member and the steel-based material are in contact with each other, and the aluminum-based member and the aluminum-based material are in contact with each other. After that, similar metal materials among these materials are joined by laser welding, but the laser welding conditions exceed the joining surface of the clad material due to the type of target member, chemical composition, plate thickness, surface condition, etc. Select appropriate conditions so that melting does not occur. If necessary,
Filler wires may be used.

これにより、鋼系材料同士及びアルミニウム系材料同
士の溶融接合となるため、溶接金属中に硬くて脆い金属
間化合物が形成されることがなく、健全な継手が得られ
る。As a result, the steel-based materials and the aluminum-based materials are melt-bonded to each other, so that a hard and brittle intermetallic compound is not formed in the weld metal, and a sound joint is obtained.

［実施例］ 以下、本発明の実施例について具体的に説明する。[Examples] Examples of the present invention will be specifically described below.

実施例１ 第１図に示すように、鋼系材料１と、アルミニウム系
材料２との間に、夫々クラッド材３の鋼系部材４及びア
ルミニウム系部材５が同種の金属と対向するようにクラ
ッド材３を配置して重ね合わせる。各材料の品種及び厚
さを下記第１表に示す。Example 1 As shown in FIG. 1, between the steel-based material 1 and the aluminum-based material 2, the clad material 3 was clad so that the steel-based member 4 and the aluminum-based member 5 faced the same metal. The materials 3 are arranged and overlapped. The type and thickness of each material are shown in Table 1 below.

クラッド材３の鋼系部材４と鋼系材料１との間、及び
クラッド材３のアルミニウム系部材５とアルミニウム系
材料２との間を夫々レーザビーム８により溶接する。こ
の場合に、溶接条件は溶け込みの先端がクラッド材３の
各部材4,5の板厚を超えないように調節して設定する。
これにより、得られたビード９は同種材料間でのみ溶融
し、クラッド材３の鋼系部材４とアルミニウム系部材５
との間の境界は溶融していない。このため、金属間化合
物も発生していない。 A laser beam 8 welds between the steel-based member 4 of the clad material 3 and the steel-based material 1 and between the aluminum-based member 5 of the clad material 3 and the aluminum-based material 2, respectively. In this case, the welding conditions are adjusted and set so that the penetration tip does not exceed the plate thickness of each member 4 and 5 of the clad material 3.
As a result, the obtained beads 9 are melted only between the same materials, and the steel-based member 4 and the aluminum-based member 5 of the clad material 3 are melted.
The boundary between and is not molten. Therefore, no intermetallic compound is generated.

下記第２表は本実施例において使用するクラッド材の
各部材の厚さを種々変更して継手強度を調査した結果を
従来法による場合と比較して示す。この第２表に示すよ
うに、従来法による比較例の場合は母材の約50％以下の
継手強度しか得られなかったが、本発明によれば、ほぼ
母材強度と同様の継手強度が得られ、継手品質が極めて
よいことが実証された。The following Table 2 shows the results of investigating the joint strength by variously changing the thickness of each member of the clad material used in this example, in comparison with the case of the conventional method. As shown in Table 2, in the case of the comparative example by the conventional method, only the joint strength of about 50% or less of the base metal was obtained, but according to the present invention, the joint strength almost equal to the base metal strength is obtained. It was demonstrated that the joint quality was very good.

なお、第２表に示したクラッド材３の各部材4,5の厚
さは0.6mm以上、5.0mm以下であるが、これ以外の厚さ寸
法のものでも同様の効果がある。しかし、クラッド材３
の各部材4,5の厚さが0.8乃至3.0mmであると、母材強度
と同様の極めて高い継手強度が得られるので、各部材4,
5の厚さはこの範囲にすることが望ましい。クラッド材
３の各部材4,5の厚さが0.8mm未満であると、継手強度が
若干低くなるが、これは溶接面での溶接金属の幅が母材
の厚さより小さくなるためと考えられる。Although the thickness of each member 4 and 5 of the clad material 3 shown in Table 2 is 0.6 mm or more and 5.0 mm or less, the same effect can be obtained with other thickness dimensions. However, clad material 3
If the thickness of each member 4,5 is 0.8 to 3.0 mm, an extremely high joint strength similar to the base metal strength can be obtained.
The thickness of 5 is preferably in this range. When the thickness of each member 4 and 5 of the clad material 3 is less than 0.8 mm, the joint strength is slightly reduced, which is considered to be because the width of the weld metal on the weld surface is smaller than the thickness of the base metal. .

一方、クラッド材３の各部材4,5の厚さが4.0mm以上の
場合も、継手強度が若干低くなる。これはせん断引張試
験時に回転変形が加わり、接合部に剥離方向の力がかか
ったためと思われる。 On the other hand, when the thickness of each of the members 4 and 5 of the clad material 3 is 4.0 mm or more, the joint strength is slightly reduced. This is probably because rotational deformation was applied during the shear tension test and a force in the peeling direction was applied to the joint.

第２図はこのようにして接合した継手の状況を示す。
この場合の溶接条件を下記第３表に示す。なお、溶接条
件はとくにこれに限定されないことは勿論である。FIG. 2 shows the condition of the joint thus joined.
The welding conditions in this case are shown in Table 3 below. Needless to say, the welding conditions are not limited to this.

実施例２ 第３図に示すように、鋼系材料１及びアルミニウム系
材料２を、この間に鋼系部材４及びアルミニウム系部材
５からなるクラッド材３を夫々同種の金属が対向するよ
うに配置してその端面をつきあわせた。これらの各材料
の品種及び板厚を下記第４表に示す。 Example 2 As shown in FIG. 3, a steel-based material 1 and an aluminum-based material 2 were placed between them, and a clad material 3 composed of a steel-based member 4 and an aluminum-based member 5 was placed so that the same kind of metal faced each other. I put the end faces together. The varieties and plate thicknesses of these materials are shown in Table 4 below.

その後、第４図に示すように、実施例１と同様に同種
の金属同士を突き合わせてレーザビーム８により溶接し
た。その際の溶接条件は下記第５表に示す通りである。 Thereafter, as shown in FIG. 4, similar metals were abutted against each other and welded by the laser beam 8 as in the first embodiment. The welding conditions at that time are as shown in Table 5 below.

第４図に示すように、鋼系材料１と鋼系部材４との間
がビート10により接合され、アルミニウム系材料２とア
ルミニウム系部材５との間がビート10により接合され
た。そして、これらの１対のビート10は相互に連結して
いない。As shown in FIG. 4, the steel-based material 1 and the steel-based member 4 were joined by the beat 10, and the aluminum-based material 2 and the aluminum-based member 5 were joined by the beat 10. And, these pair of beats 10 are not connected to each other.

実施例３ 第５図に示すように、鋼系材料１とアルミニウム系材
料２との間にクラッド材３を夫々同種の金属が対向する
よう重ね合わせて配置する。これらの材料の品種及び厚
さは下記第６表に示すとおりである。 Example 3 As shown in FIG. 5, a clad material 3 is placed between a steel material 1 and an aluminum material 2 so that the same kind of metal faces each other. The types and thicknesses of these materials are shown in Table 6 below.

先ず、第６図に示すように、アルミニウム系材料２を
待避させておき、鋼系材料１とクラッド材３の鋼系部材
４とをレーザビーム８により溶接した。これにより、ビ
ード11が形成された。次いで、第７図に示すように、ク
ラッド材３のアルミニウム系部材５とアルミニウム系材
料２とを重ねてレーザビーム８により溶接した。これに
より、ビード12が形成された。ビード11は鋼系材料１と
鋼系部材４とを接合し、ビード12はアルミニウム系材料
２とアルミニウム系部材５とを接合している。両ビード
11,12の連絡はない。First, as shown in FIG. 6, the aluminum-based material 2 was retracted, and the steel-based material 1 and the steel-based member 4 of the clad material 3 were welded by the laser beam 8. Thereby, the bead 11 was formed. Next, as shown in FIG. 7, the aluminum-based member 5 of the clad material 3 and the aluminum-based material 2 were overlapped and welded by the laser beam 8. Thereby, the bead 12 was formed. The bead 11 joins the steel material 1 and the steel member 4, and the bead 12 joins the aluminum material 2 and the aluminum member 5. Both beads
There is no contact of 11,12.

なお、溶接条件は下記第７表に示す通りである。 The welding conditions are as shown in Table 7 below.

また、ここではレーザ溶接を２回に分けて行ったが、
材料の寸法及び形状によっては一度に行ってもよい。更
に、溶接の順序もこれに限らず、アルミニウム系部材５
とアルミニウム系材料２との溶接を先に実施してもよ
い。Also, here, laser welding was performed in two steps,
Depending on the size and shape of the material, it may be done at once. Further, the order of welding is not limited to this, and the aluminum-based member 5
The aluminum-based material 2 may be welded first.

第７図は溶接完了後の形状を示すが、溶接部が外面に
現れるアルミニウム系材料２の表面に溶接時の圧痕及び
ふくれ等の痕跡は存在せず、そのまま商品として供給可
能であった。 FIG. 7 shows the shape after completion of welding, but there were no traces of dents or swelling during welding on the surface of the aluminum-based material 2 in which the welded portion appeared on the outer surface, and the product could be supplied as it was.

［発明の効果］ 本発明によれば、十分に高い継ぎ手強度が得られると
共に、材料形状の自由度が大きく、薄板同士の異材接合
等が可能である。また、本発明は溶接部の外観が良好で
あり、そのまま商品として供給できるという優れた効果
を奏する。[Effects of the Invention] According to the present invention, a sufficiently high joint strength can be obtained, the degree of freedom in the material shape is large, and it is possible to join dissimilar materials between thin plates. In addition, the present invention has an excellent effect that the welded portion has a good appearance and can be directly supplied as a product.

【図面の簡単な説明】[Brief description of the drawings]

第１図は実施例１の接合方法を示す模式図、第２図はそ
の接合結果を示す模式図、第３図は実施例２の接合方法
を示す模式図、第４図はその接合結果を示す模式図、第
５図は実施例３の接合方法を示す模式図、第６図及び第
７図はその接合結果を示す模式図、第８図は従来の接合
方法を示す模式図、第９図はその接合結果を示す模式図
である。 1;鋼系材料、2;アルミニウム系材料、3;クラッド材、4;
鋼系部材、5;アルミニウム系部材、6;チップ、7;金属間
化合物、8;レーザビーム、9,10,11,12;ビードFIG. 1 is a schematic diagram showing the joining method of Example 1, FIG. 2 is a schematic diagram showing the joining result, FIG. 3 is a schematic diagram showing the joining method of Example 2, and FIG. FIG. 5 is a schematic diagram showing the joining method of Example 3, FIGS. 6 and 7 are schematic diagrams showing the joining results, FIG. 8 is a schematic diagram showing the conventional joining method, and FIG. The figure is a schematic view showing the joining result. 1; Steel material, 2; Aluminum material, 3; Clad material, 4;
Steel-based material, 5; Aluminum-based material, 6; Chip, 7; Intermetallic compound, 8; Laser beam, 9, 10, 11, 12; Bead

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】被溶接材である鋼系材料とアルミニウム系
材料との間に鋼系部材とアルミニウム系部材とを積層し
たクラッド材を前記鋼系部材を前記鋼系材料に、前記ア
ルミニウム系部材を前記アルミニウム系材料に接触させ
て配置し、前記クラッド材と鋼系材料及びアルミニウム
系材料とを異種金属が溶融しあわない溶接条件でレーザ
溶接法により接合して一体化することを特徴とする鋼系
材料とアルミニウム系材料との接合方法。1. A clad material in which a steel-based member and an aluminum-based member are laminated between a steel-based material and an aluminum-based material, which are materials to be welded, and the steel-based member is the steel-based material, and the aluminum-based member is the clad material. Is placed in contact with the aluminum-based material, and the clad material, the steel-based material and the aluminum-based material are joined and integrated by a laser welding method under welding conditions in which dissimilar metals do not melt each other. A method for joining a steel material and an aluminum material. 【請求項２】前記クラッド材は鋼系部材及びアルミニウ
ム系部材の厚さが夫々0.8乃至3.0mmであることを特徴と
する請求項１に記載の鋼系材料とアルミニウム系材料と
の接合方法。2. The method for joining a steel-based material and an aluminum-based material according to claim 1, wherein the clad material has a steel-based material and an aluminum-based material each having a thickness of 0.8 to 3.0 mm.
JP2191616A 1990-07-19 1990-07-19 Joining method for steel-based materials and aluminum-based materials Expired - Fee Related JP2672182B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2191616A JP2672182B2 (en) 1990-07-19 1990-07-19 Joining method for steel-based materials and aluminum-based materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2191616A JP2672182B2 (en) 1990-07-19 1990-07-19 Joining method for steel-based materials and aluminum-based materials

Publications (2)

Publication Number Publication Date
JPH0481288A JPH0481288A (en) 1992-03-13
JP2672182B2 true JP2672182B2 (en) 1997-11-05

Family

ID=16277601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2191616A Expired - Fee Related JP2672182B2 (en) 1990-07-19 1990-07-19 Joining method for steel-based materials and aluminum-based materials

Country Status (1)

Country Link
JP (1) JP2672182B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006224146A (en) * 2005-02-17 2006-08-31 Kobe Steel Ltd Method for joining different kinds of material

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302797A (en) * 1991-08-30 1994-04-12 Sumitomo Metal Industries, Ltd. Resistance welding of aluminum
EP0686453B1 (en) * 1993-11-15 1999-07-14 Nippon Steel Corporation Resistance welding method for steel metal plates and aluminum metal plates and material for resistance welding
US5783794A (en) * 1993-11-15 1998-07-21 Nippon Steel Corporation Method and material for resistance welding steel-base metal sheet to aluminum-base metal sheet
US5474331A (en) * 1994-12-29 1995-12-12 Booher; Howard Composite trailer assembly using bi-metal materials
US5655792A (en) * 1994-12-29 1997-08-12 East Manufacturing Composite trailer and van type container assembly using bi-metal materials
FR2732631B1 (en) * 1995-04-04 1997-06-20 Lorraine Laminage FORM PART FOR A MOTOR VEHICLE OR RAIL VEHICLE AND METHOD FOR MANUFACTURING SUCH A FORM PART
US6621037B2 (en) * 1997-10-16 2003-09-16 Magna International Inc. Welding material with conductive sheet and method
DE19843824A1 (en) * 1998-09-24 2000-03-30 Volkswagen Ag Composite body parts made of steel and light metals
US6554178B1 (en) 1999-04-08 2003-04-29 Quallion Llc Battery case feedthrough
WO2004030120A2 (en) 1999-04-08 2004-04-08 Quallion Llc Battery case, cover and feedthrough
DE10022595A1 (en) * 2000-05-09 2001-11-15 Linde Ag Plate heat exchanger
DE102004013375A1 (en) * 2004-03-17 2005-10-06 Volkswagen Ag Laser welding method for joining three metal plates during car body manufacturing, involves reflecting laser beam emerging from one laser head in direction of one of two outer plates, and impinging beams from heads on plates at same time
DE102004013373A1 (en) * 2004-03-17 2005-10-06 Volkswagen Ag Laser welding method for joining three metal sheets, involves welding outer lying sheets and inner lying sheet of metal by laser beam, so that welding connection is created between outer lying sheets and inner lying sheet
JP4566091B2 (en) * 2004-09-21 2010-10-20 株式会社神戸製鋼所 Dissimilar material joining method
JP4768487B2 (en) * 2006-03-27 2011-09-07 株式会社神戸製鋼所 Dissimilar material joining method
KR20100065670A (en) 2008-12-08 2010-06-17 삼성에스디아이 주식회사 Rechargeable battery
DE102013107926A1 (en) 2013-07-24 2015-02-19 Thyssenkrupp Lasertechnik Gmbh Process for the permanent joining of workpieces produced from different materials, semifinished product for producing such a joint and use of the semifinished product
JP6183555B2 (en) * 2014-06-18 2017-08-23 日産自動車株式会社 Tab welding method for battery pack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006224146A (en) * 2005-02-17 2006-08-31 Kobe Steel Ltd Method for joining different kinds of material

Also Published As

Publication number Publication date
JPH0481288A (en) 1992-03-13

Similar Documents

Publication Publication Date Title
JP2672182B2 (en) Joining method for steel-based materials and aluminum-based materials
JP4326492B2 (en) Dissimilar materials joining method using laser welding
US20200108468A1 (en) Hybrid ultrasonic and resistance spot welding system
JP2008290129A (en) Method of welding metallic member
JP4768487B2 (en) Dissimilar material joining method
JP3157373B2 (en) Laser welding method for multi-layer steel plate
JP3333497B2 (en) Friction welding method and friction welding device
JPH0811302B2 (en) Dissimilar metal joining method
JP2007289988A (en) Friction stir welding method
JP3333394B2 (en) Panel manufacturing method and panel
JP2002035964A (en) Friction stir welding method and tool for lap joint
JP2003236673A (en) Method for joining different kinds of materials
JP2002224857A (en) Joining structure and joining method between hollow members made of respectively different kinds of metal
JP4931506B2 (en) Dissimilar material joining method
JPH08141755A (en) Friction welding method for different kinds of metallic material
JP3268207B2 (en) Friction welding method
JPH0224197B2 (en)
JP2002096182A (en) Bonding method, revolving tool and joining body by friction heating
JP2531052B2 (en) Resistance welding method for dissimilar metals
JP3583558B2 (en) Pipe frame structure joining method
JP3646742B2 (en) Low alloy steel shaft or joining method of steel shaft and titanium aluminide rotating body
JP4194419B2 (en) Joining method and joining joint of iron-based material and aluminum-based material
JPH04253578A (en) Method for joining different metals
JP2005081375A (en) Structure and method for joining different kinds of materials
JP2000153376A (en) Frictional joining method and its device

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees