JP2001047244A - Fusion welding method - Google Patents

Fusion welding method

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Publication number
JP2001047244A
JP2001047244A JP11219849A JP21984999A JP2001047244A JP 2001047244 A JP2001047244 A JP 2001047244A JP 11219849 A JP11219849 A JP 11219849A JP 21984999 A JP21984999 A JP 21984999A JP 2001047244 A JP2001047244 A JP 2001047244A
Authority
JP
Japan
Prior art keywords
welding
joint
butt
lap
member side
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
Application number
JP11219849A
Other languages
Japanese (ja)
Other versions
JP3091843B1 (en
Inventor
Seiji Katayama
聖二 片山
Iwao Kawamata
巌 河又
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.)
LASER OYO KOGAKU KENKYUSHO KK
Original Assignee
LASER OYO KOGAKU KENKYUSHO KK
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 LASER OYO KOGAKU KENKYUSHO KK filed Critical LASER OYO KOGAKU KENKYUSHO KK
Priority to JP11219849A priority Critical patent/JP3091843B1/en
Application granted granted Critical
Publication of JP3091843B1 publication Critical patent/JP3091843B1/en
Publication of JP2001047244A publication Critical patent/JP2001047244A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a fusion welding method by which a formation of an intermetallic compound is minimized and a welded part having both of large shearing strength and tearing strength is given in a joining of different materials, and a structure constructed by the method. SOLUTION: In a fusion welding method where different materials which form an intermetallic compound by being fused together are welded, a process where a first member 1 forming a butted part and a lapped part at a joining part and a second member 2 whose melting point is higher than that of the first member are combined, arid a process where a butt welding and a lap welding are executed by fusing the side of the second member, fusing only the joining part of the first member side by a heat conduction from the second member side as for the joining part of a butted part 3 and a lapped part 4, thus the joining part of the second member side is substantially not fused, are provided.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、異種材料の溶融溶
接方法及びこの方法で得られた溶接部を有する構造物に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fusion welding different kinds of materials and a structure having a weld obtained by the method.

【0002】[0002]

【従来の技術】異種材料の溶融溶接では、全組成域で全
率固溶体が生成される材料の組合わせの場合、比較的容
易に溶融溶接できる。しかし、金属間化合物が生成する
材料の組合わせでは、一般に接合が非常に困難であるこ
とが知られている。例えば、アルミニウム合金と鉄鋼材
料をそのまま溶融接合すると、脆弱な金属間化合物が広
範囲に生成され、そこに高温割れ等が発生し易く、十分
な靭性と強度を達成することができない。一方、重ね溶
接でも、上板をアルミニウム合金とすると、脆弱な金属
間化合物が広範囲に生成され、割れが発生し易く、接合
が困難である。また、下板をアルミニウム合金としたと
きでも、その溶融が多いと、脆弱な金属間化合物が多量
に生成し、そこに割れなどが発生し易い。
2. Description of the Related Art In the fusion welding of different materials, in the case of a combination of materials in which a total solid solution is generated in all composition regions, the fusion welding can be relatively easily performed. However, it is known that bonding is generally very difficult with a combination of materials that generate an intermetallic compound. For example, when an aluminum alloy and a steel material are melt-bonded as they are, a brittle intermetallic compound is generated in a wide range, and high-temperature cracking and the like are apt to occur there, and sufficient toughness and strength cannot be achieved. On the other hand, even in lap welding, when the upper plate is made of an aluminum alloy, brittle intermetallic compounds are generated in a wide range, cracks are easily generated, and joining is difficult. Further, even when the lower plate is made of an aluminum alloy, if the melting thereof is large, a large amount of a brittle intermetallic compound is generated, and cracks and the like are easily generated there.

【0003】そこで、このような金属間化合物の生成が
考えられる異種材料を接合するときには、金属間化合物
の生成量が少ない接合部を作成する必要がある。従っ
て、突合せ溶接における一つの改善方法として、レーザ
ー等の高パワー密度熱源を高融点側の材料に照射して加
熱し(溶融させ)、一方の低融点側の材料を照射(溶
融)部側からの熱伝導で加熱・溶融させて接合面に生成
する金属間化合物を狭く制御する方法が考えられる。ま
た、重ね溶接においても、下板の溶融を制御し、生成す
る金属間化合物を少なくすることが有効であろうと考え
られる。なお、異材重ね溶接で、下板の溶融を少なくし
ようとすると、重ね面が狭くなり、接合強度が低下す
る。また、重ね溶接部は、せん断強度に対して強い場合
があるが、引き裂き力に対しては弱いという欠点があ
る。
Therefore, when joining dissimilar materials in which such an intermetallic compound is likely to be formed, it is necessary to form a joint having a small amount of intermetallic compound. Therefore, as one improvement method in butt welding, a material having a high melting point is irradiated with a high power density heat source such as a laser and heated (melted), and the material having a lower melting point is irradiated (melted) from the irradiated side. A method of narrowing the intermetallic compound generated on the joint surface by heating and melting by the heat conduction of the metal is considered. Also in lap welding, it is considered effective to control the melting of the lower plate to reduce the amount of intermetallic compounds generated. In addition, in the dissimilar material lap welding, if an attempt is made to reduce the melting of the lower plate, the lapping surface becomes narrow, and the joining strength decreases. Further, the lap welded portion has a disadvantage that it may be strong against the shear strength but weak against the tearing force.

【0004】[0004]

【発明が解決しようとする課題】本発明は上記事情に鑑
みてなされたもので、その目的とするところは、異材を
接合する際に、金属間化合物の生成を最小限に抑え、し
かも、せん断強度、及び引き裂き力のいずれにも強い溶
接部を得ることができる溶融溶接方法及びその構造物を
提供することにある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to minimize the generation of intermetallic compounds when joining dissimilar materials, An object of the present invention is to provide a fusion welding method and a structure thereof capable of obtaining a welded portion that is strong in both strength and tear force.

【0005】[0005]

【課題を解決するための手段】すなわち、本発明は、 (1) 互いに溶融して金属間化合物を形成する異種材
料を溶融溶接する方法において、継手部分に突合せ部と
重ね部とを形成するようにした第1の部材と第1の部材
よりも融点の高い材料からなる第2の部材とを組合わせ
る工程と、第2の部材側を溶融させ、突合せ部及び重ね
部の接合部に関して、第2の部材側からの熱伝導で実質
的に第1の部材側の接合部のみを溶融させ、第2の部材
側の接合部を溶融させない、突合せ溶接及び重ね溶接を
おこなう工程と、を備えた溶融溶接方法。
SUMMARY OF THE INVENTION The present invention relates to (1) a method for melt-welding dissimilar materials which melt with each other to form an intermetallic compound, wherein a butted portion and an overlapped portion are formed at a joint portion. Combining the first member with the second member made of a material having a higher melting point than the first member, melting the second member side, and joining the butted portion and the overlapped portion with each other. Performing a butt welding and a lap welding, substantially melting only the joint on the first member side and not melting the joint on the second member side by heat conduction from the second member side. Melt welding method.

【0006】(2) 突合せ溶接及び重ね溶接での第2
の部材側の溶融は、レーザー、電子ビーム、プラズマア
ーク、TIG,MIG、及びCOアークの群から選択
される手段でおこなう(1)に記載の溶融溶接方法。
(2) Second in butt welding and lap welding
(1) is performed by means selected from the group consisting of laser, electron beam, plasma arc, TIG, MIG, and CO 2 arc.

【0007】(3) 互いに溶融して金属間化合物を形
成する異種材料を溶融溶接して得られた構造物であっ
て、第1の部材と、第1の部材よりも融点の高い材料か
らなる第2の部材との継手部分に突合せ接合部と重ね接
合部とを有し、実質的に第1の部材側のみの継手部の接
合部が溶融されたものである溶融溶接構造物である。
(3) A structure obtained by melt-welding dissimilar materials that form an intermetallic compound by melting with each other, comprising a first member and a material having a higher melting point than the first member. A fusion-welded structure having a butt joint and a lap joint at a joint portion with the second member, wherein a joint portion of the joint portion substantially only on the first member side is melted.

【0008】本発明では、異材接合における上記の突合
せ溶接と重ね溶接のそれぞれの欠点を補完する継手形状
(例えば、L字型の継手形状)を用いて、突合せ溶接
部、重ね溶接部に対して、それぞれ高パワー密度熱源の
レーザー等を第2の部材(高融点材料)側から照射し
て、第1の部材と第2の部材の接合部に関して、第1の
部材(低融点材料)側の接合部のみを溶融させ、第2の
部材(高融点材料)側の接合部界面を溶融させないで、
突合せ接合部及び重ね溶接部を同時に作成するような接
合をする。
According to the present invention, a joint shape (for example, an L-shaped joint shape) which complements the disadvantages of the butt welding and the lap welding in dissimilar material joining is used for a butt welding portion and a lap welding portion. A laser or the like of a high power density heat source is irradiated from the side of the second member (high melting point material), and the joint between the first member and the second member is irradiated on the side of the first member (low melting point material). Only the joint is melted and the interface of the joint on the second member (high melting point material) side is not melted.
The butt joint and the lap weld are joined simultaneously.

【0009】この溶融溶接方法によれば、金属間化合物
を生成する領域を極力少なくすることができ、かつ、突
合せ溶接と重ね溶接とを組合わせているので、強度特性
の優れた良好な異材接合部の作成が可能である。
According to this fusion welding method, the region in which an intermetallic compound is generated can be reduced as much as possible, and since the butt welding and the lap welding are combined, a good dissimilar material joint having excellent strength characteristics can be obtained. It is possible to create a copy.

【0010】[0010]

【発明の実施の形態】本発明で適用可能な第1の部材を
例示すると、アルミニウム、アルミニウム合金、銅、銅
合金、マグネシウム合金等である。第2の部材を例示す
ると各種鉄鋼材料である。適用可能な合金系の組合わせ
として、アルミニウム及びアルミニウム合金(以下、A
l合金と略称する)と種々の金属材料、銅及び銅合金
(以下、Cu合金と略称する)と種々の金属材料、マグネ
シウム合金(以下、Mg合金と略称する)と種々の金属
材料など、種々の組合わせが挙げられる。具体的には、
Al合金−各種鉄鋼材料(Fe)、Al合金−各種チタン
基材料(Ti)、Al合金−各種コバルト基合金(Co)、
Al合金−各種ニオブ基合金(Nb)、Al合金−珪素・
シリコン(Si)、Al合金−各種ステンレス鋼(SU
S)、Al合金−各種ニッケル基合金(Ni)、Al合金
−各種クロム基合金(Cr)、Al合金−各種ジルコニウ
ム(Zr)、Cu合金−各種鉄鋼材料(Fe)、Cu合金−各種
チタン基材料(Ti)、Cu合金−各種コバルト基合金(C
o)、Cu合金−各種ニオブ基合金(Nb)、Cu合金−珪素
・シリコン(Si)、Cu合金−各種ステンレス鋼(SU
S)、Cu合金−各種ニッケル基合金(Ni)、Cu合金−各
種クロム基合金(Cr)、Cu合金−各種ジルコニウム(Z
r)、Mg合金−各種鉄鋼材料(Fe)、Mg合金−各種チタ
ン基材料(Ti)、Mg合金−各種コバルト基合金(Co)、
Mg合金−各種ニオブ基合金(Nb)、Mg合金−珪素・シリ
コン(Si)、Mg合金−各種ステンレス鋼(SUS)、Mg合
金−各種ニッケル基合金(Ni)、Mg合金−各種クロム基
合金(Cr)、Mg合金−各種ジルコニウム(Zr)が挙げら
れる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS First members applicable to the present invention are exemplified by aluminum, aluminum alloy, copper, copper alloy, magnesium alloy and the like. Examples of the second member include various steel materials. Aluminum and aluminum alloys (hereinafter referred to as A
1 alloy and various metal materials, copper and copper alloy (hereinafter abbreviated as Cu alloy) and various metal materials, magnesium alloy (hereinafter abbreviated as Mg alloy) and various metal materials, etc. Combinations. In particular,
Al alloys-Various steel materials (Fe), Al alloys-Various titanium-based materials (Ti), Al alloys-Various cobalt-based alloys (Co),
Al alloy-various niobium-based alloys (Nb), Al alloy-silicon
Silicon (Si), Al alloy-various stainless steels (SU
S), Al alloy-various nickel base alloys (Ni), Al alloy-various chromium base alloys (Cr), Al alloy-various zirconium (Zr), Cu alloy-various steel materials (Fe), Cu alloy-various titanium base Material (Ti), Cu alloy-various cobalt-based alloys (C
o), Cu alloys-various niobium-based alloys (Nb), Cu alloys-silicon / silicon (Si), Cu alloys-various stainless steels (SU
S), Cu alloys-various nickel-based alloys (Ni), Cu alloys-various chromium-based alloys (Cr), Cu alloys-various zirconium (Z
r), Mg alloys-various steel materials (Fe), Mg alloys-various titanium-based materials (Ti), Mg alloys-various cobalt-based alloys (Co),
Mg alloys-Various niobium-based alloys (Nb), Mg alloys-Silicon silicon (Si), Mg alloys-Various stainless steels (SUS), Mg alloys-Various nickel-based alloys (Ni), Mg alloys-Various chromium-based alloys ( Cr), Mg alloy-various zirconium (Zr).

【0011】継手部分の形状は、突合せ部と重ね部とが
形成されるものであれば、特に限定されるものではな
い。適用される部材の形状は、板材に適用した例を示し
たが、例えば、円形丸棒と円形丸棒、丸棒と円形丸管、
円形丸管と円形丸管との組合わせなど、任意の形状に適
用できる。要は、継手部に突合せ部と重ね部とが形成さ
れていればよい。また、第2の材料の溶融方法は、レー
ザー、電子ビーム、プラズマアーク、TIG,MIG、
COアークなどパワー密度の高い手段を用いるのが好
ましい。
[0011] The shape of the joint portion is not particularly limited as long as the joint portion and the overlap portion are formed. The shape of the applied member shows an example in which the invention is applied to a plate material, for example, a circular round bar and a circular round bar, a round bar and a circular round tube,
It can be applied to any shape such as a combination of a circular round tube and a circular round tube. In short, it is only necessary that the joint portion has the butted portion and the overlapped portion. Further, the melting method of the second material includes laser, electron beam, plasma arc, TIG, MIG,
It is preferable to use a means having a high power density such as a CO 2 arc.

【0012】以下、図面を参照して、本発明の実施の形
態を示す。
An embodiment of the present invention will be described below with reference to the drawings.

【0013】図1は、第1の部材(1)と第2の部材
(2)との継手部を示す。第1の部材は、継手部分がL
字状をなし、第2の部材は、第1の部材よりも高融点の
材料で、平板状である。第1の部材と第2の部材との継
手部分には、突合せ部(3)と重ね部(4)とが形成さ
れている。
FIG. 1 shows a joint between a first member (1) and a second member (2). The first member has a joint portion L
The second member has a higher melting point than the first member, and has a flat plate shape. A butt portion (3) and an overlap portion (4) are formed at a joint between the first member and the second member.

【0014】継手の突合せ部(3)から離れた位置で、
かつ重ね部(4)の上から、第2の部材を溶融する。突
合せ部からの距離は、その溶融熱により、第1の部材の
突合せ部の接合部が溶融するが、第2の部材の突合せ部
は溶融しない距離とする。溶融の深さは、その溶融熱に
より第1の部材の重ね部の突合せ部の接合部が溶融する
が、第2の部材の突合せ部は溶融しない深さとする。
At a position away from the butt portion (3) of the joint,
The second member is melted from above the overlapping portion (4). The distance from the butting portion is a distance at which the joining portion of the butting portion of the first member is melted but the butting portion of the second member is not melted by the heat of fusion. The fusion depth is set to a depth at which the joining portion of the butting portion of the overlapping portion of the first member is melted by the heat of melting, but the joining portion of the second member is not melted.

【0015】得られた溶融溶接構造物は、第2の部材の
溶融部(5)と、実質的に第1の部材のみが溶融した突
合せ接合部(6)と、実質的に第1の部材のみが溶融し
た重ね溶接部(7)とが形成される。
[0015] The resulting fusion welded structure comprises a fused portion (5) of the second member, a butt joint (6) in which substantially only the first member is fused, and a substantially first member. Only the molten lap weld (7) is formed.

【0016】図2は、第1の部材がL字状に、第2の部
材が逆L字状に形成されたものである。この性状の継手
に対しては、図1の方法に加えて、さらに第2の部材の
底面側から、第2の突合せ部(8)の近傍(5’)を溶
融させ、実質的に第1の部材側のみに突合せ接合部
(9)を形成する。
FIG. 2 shows a first member formed in an L-shape and a second member formed in an inverted L-shape. For the joint having this property, in addition to the method shown in FIG. 1, the vicinity (5 ') of the second butting portion (8) is melted from the bottom surface side of the second member, and the first member is substantially melted. Butt joints (9) are formed only on the member side.

【0017】なお、上記実施例では、第2の部材(2)
の溶融は、重ね部の接合部に到達しないように溶融した
が、図3に示すように、溶融部が第1の部材(1)にま
で達するようにしてもよい。このことにより、楔の機能
を発揮することとなる。
In the above embodiment, the second member (2)
Is melted so as not to reach the joining portion of the overlapped portion, but as shown in FIG. 3, the melted portion may reach the first member (1). As a result, the function of the wedge is exhibited.

【0018】また、図4に示すように、L字状と、逆L
字状に形成した一対の第2の部材(2)、(2)を用意
し、その突合せ部に第1の部材(1)が挟まれているよ
うな継手の場合にも本発明を適用することができる。
Also, as shown in FIG.
A pair of second members (2) and (2) formed in a U-shape are prepared, and the present invention is also applied to a joint in which the first member (1) is sandwiched between butted portions. be able to.

【0019】さらに、本発明は、図5に示すサネハギ継
手(rabbet joint)にも適用でき、この場合、例えば、
(1)又は(2)に示すように第2の部材の溶融部(5)を形
成して、突合せ溶接部(6)、重ね溶接部(7)を形成
する。
Further, the present invention can be applied to a rabbet joint shown in FIG. 5, in which case, for example,
As shown in (1) or (2), a fusion part (5) of the second member is formed to form a butt weld part (6) and a lap weld part (7).

【0020】[0020]

【実施例】本発明方法を用いて、通常の自動車鋼板用F
e(0.8mmt)または純鉄(2mmt)と工業用純アルミ
ニウム(2mmtまたは3mmt:Al板では、そのままの
ものと、深さ1mm、長さ4〜5mmの段差を付けたも
の)を用いて、重ね溶接と重ね・突合せ併用溶接を行っ
た。その結果、重ねと突合せの併用溶接法を採用するこ
とにより、重ね溶接の場合に比べて引張り強度が25%
上昇した。すなわち、1 突合せ溶接のみの場合(薄板
の場合、引張り試験セット時に破断することが多い)そ
の接合強度は、約1,000Nであった。 2 重ね溶接の場合、その接合強度は、約4,900N
〜5,065Nであった。 3 本発明の重ねと突合せ重畳法では、その接合強度は
6340Nであった。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of the present invention is applied to a conventional F
e (0.8 mmt) or pure iron (2 mmt) and industrial pure aluminum (2 mmt or 3 mmt: Al plate, as it is, with a step of 1 mm in depth and 4 to 5 mm in length) Lap welding and combined lap and butt welding were performed. As a result, by employing the combined welding method of lap and butt, the tensile strength is 25% as compared with the case of lap welding.
Rose. That is, in the case of only one butt welding (in the case of a thin plate, it often breaks during a tensile test set), the joining strength was about 1,000 N. 2 In the case of lap welding, the joining strength is about 4,900 N
5,5,065N. 3. In the lapping and butt-lapping method of the present invention, the bonding strength was 6340N.

【0021】[0021]

【発明の効果】以上説明したように、本発明によれば、
継手形状を工夫し(例えば、L字型)、金属間化合物の
生成を極力抑制した重ね溶接と突合せ溶接とを併合する
ことにより、強度特性の優れた異材接合部を形成した溶
融溶接方法及び溶接部を有する構造物を提供することが
できる。
As described above, according to the present invention,
A fusion welding method and welding in which a joint shape is devised (for example, an L-shape), and lap welding and butt welding in which generation of an intermetallic compound is suppressed as much as possible are combined to form a dissimilar material joint having excellent strength characteristics. A structure having a portion can be provided.

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

【図1】本発明の1実施態様を示す断面図。FIG. 1 is a sectional view showing one embodiment of the present invention.

【図2】本発明の他の実施態様を示す断面図。FIG. 2 is a sectional view showing another embodiment of the present invention.

【図3】本発明の更に異なる実施態様を示す断面図。FIG. 3 is a sectional view showing still another embodiment of the present invention.

【図4】本発明の別の実施態様を示す断面図。FIG. 4 is a sectional view showing another embodiment of the present invention.

【図5】本発明の更に異なる別の実施態様を示す断面
図。
FIG. 5 is a sectional view showing still another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1...第1の部材 2...第2の部材 3...突合せ部 4...重ね部 5...第2の部材の溶融部 6...突合せ溶接部 7...重ね溶接部 8...第2の突合せ部 9...突合せ溶接部 1. . . 1. First member . . Second member 3. . . Butt section 4. . . Overlap part 5. . . 5. Fused portion of second member . . Butt weld 7. . . 7. Lap welds . . Second butt 9. . . Butt weld

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成12年2月24日(2000.2.2
4)
[Submission date] February 24, 2000 (200.2.2
4)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】特許請求の範囲[Correction target item name] Claims

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【特許請求の範囲】[Claims]

【手続補正2】[Procedure amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0005[Correction target item name] 0005

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【0005】[0005]

【課題を解決するための手段】すなわち、本発明は、 (1)互いに溶融して金属間化合物を形成する異種材料
を溶融溶接する方法において、継手部分に突合せ部と重
ね部とを形成するようにした第1の部材と第1の部材よ
りも融点の高い材料からなる第2の部材とを組合わせる
工程と、第2の部材側を溶融させ、突合せ部及び重ね部
の接合部に関して、第2の部材側からの熱伝導で実質的
に第1の部材側の突合せ部及び重ね部の接合部のみを
時に溶融させ、第2の部材側の接合部を溶融させない、
突合せ溶接及び重ね溶接を同時におこなう工程とを備え
た溶融溶接方法。 ─────────────────────────────────────────────────────
SUMMARY OF THE INVENTION The present invention relates to (1) a method for melt-welding dissimilar materials which melt together to form an intermetallic compound, wherein a butted portion and an overlapped portion are formed at a joint portion. Combining the first member with the second member made of a material having a higher melting point than the first member, melting the second member side, and joining the butted portion and the overlapped portion with each other. Due to heat conduction from the second member side, substantially only the butted portion and the joined portion of the overlapped portion on the first member side are the same.
Sometimes melting, do not melt the joint on the second member side,
A step of simultaneously performing butt welding and lap welding. ────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成12年5月26日(2000.5.2
6)
[Submission date] May 26, 2000 (2005.2.
6)

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】発明の名称[Correction target item name] Name of invention

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【発明の名称】 溶融溶接方法[Title of the Invention] Melt welding method

【手続補正2】[Procedure amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】特許請求の範囲[Correction target item name] Claims

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【特許請求の範囲】[Claims]

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 互いに溶融して金属間化合物を形成する
異種材料を溶融溶接する方法において、継手部分に突合
せ部と重ね部とを形成するようにした第1の部材と第1
の部材よりも融点の高い材料からなる第2の部材とを組
合わせる工程と、 第2の部材側を溶融させ、突合せ部及び重ね部の接合部
に関して、第2の部材側からの熱伝導で実質的に第1の
部材側の接合部のみを溶融させ、第2の部材側の接合部
を溶融させない、突合せ溶接及び重ね溶接をおこなう工
程と、 を備えた溶融溶接方法。
1. A method for melt-welding dissimilar materials that fuse with each other to form an intermetallic compound, wherein a first member and a first member having a butt portion and an overlap portion formed at a joint portion.
Combining a second member made of a material having a higher melting point than that of the second member, melting the second member side, and performing heat conduction from the second member side with respect to the joining portion of the butted portion and the overlapped portion. Performing a butt welding and a lap welding, substantially melting only the joint on the first member side and not melting the joint on the second member side.
【請求項2】 突合せ溶接及び重ね溶接での第2の部材
側の溶融は、レーザー、電子ビーム、プラズマアーク、
TIG,MIG、及びCOアークの群から選択される
手段でおこなう請求項1に記載の溶融溶接方法。
2. The melting of the second member side in butt welding and lap welding is performed by using a laser, an electron beam, a plasma arc,
TIG, MIG, and fusion welding method according to claim 1 carried out by a means selected from CO 2 arc group.
【請求項3】 互いに溶融して金属間化合物を形成する
異種材料を溶融溶接して得られた構造物であって、第1
の部材と、第1の部材よりも融点の高い材料からなる第
2の部材との継手部分に突合せ接合部と重ね接合部とを
有し、実質的に第1の部材側のみの継手部の接合部が溶
融されたものである溶融溶接構造物。
3. A structure obtained by melt-welding dissimilar materials that melt with each other to form an intermetallic compound,
And a second member made of a material having a higher melting point than the first member, a butt joint portion and a lap joint portion, and a joint portion substantially only on the first member side. A fusion welded structure in which the joints have been melted.
JP11219849A 1999-08-03 1999-08-03 Melt welding method Expired - Lifetime JP3091843B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11219849A JP3091843B1 (en) 1999-08-03 1999-08-03 Melt welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11219849A JP3091843B1 (en) 1999-08-03 1999-08-03 Melt welding method

Publications (2)

Publication Number Publication Date
JP3091843B1 JP3091843B1 (en) 2000-09-25
JP2001047244A true JP2001047244A (en) 2001-02-20

Family

ID=16742034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11219849A Expired - Lifetime JP3091843B1 (en) 1999-08-03 1999-08-03 Melt welding method

Country Status (1)

Country Link
JP (1) JP3091843B1 (en)

Cited By (7)

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JP2006320953A (en) * 2005-05-20 2006-11-30 Nichirin Co Ltd Body joined by welding dissimilar metal members made of ferrous alloy and aluminum alloy
WO2010104088A1 (en) * 2009-03-11 2010-09-16 株式会社神戸製鋼所 Method for bonding dissimilar materials
CN103291194A (en) * 2012-03-02 2013-09-11 铃木株式会社 Door inner panel as automobile parts and method of manufacturing same
DE112012001128T5 (en) 2011-03-07 2013-12-24 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for connecting different metals
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006320953A (en) * 2005-05-20 2006-11-30 Nichirin Co Ltd Body joined by welding dissimilar metal members made of ferrous alloy and aluminum alloy
WO2010104088A1 (en) * 2009-03-11 2010-09-16 株式会社神戸製鋼所 Method for bonding dissimilar materials
JP2010207886A (en) * 2009-03-11 2010-09-24 Kobe Steel Ltd Method for joining dissimilar material
US9339887B2 (en) 2011-03-07 2016-05-17 Kobe Steel, Ltd. Method for bonding dissimilar metals to each other
DE112012001128T5 (en) 2011-03-07 2013-12-24 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for connecting different metals
CN103291194B (en) * 2012-03-02 2015-06-17 铃木株式会社 Door inner panel as automobile parts and method of manufacturing same
CN103291194A (en) * 2012-03-02 2013-09-11 铃木株式会社 Door inner panel as automobile parts and method of manufacturing same
JP2014089176A (en) * 2012-10-01 2014-05-15 Ngk Spark Plug Co Ltd Temperature sensor
US9500536B2 (en) 2012-10-01 2016-11-22 Ngk Spark Plug Co., Ltd. Temperature sensor
CN106363282A (en) * 2016-11-22 2017-02-01 苏州哈工众志自动化科技有限公司 Method for overlapping welding of inconstant-thickness aluminum alloy
JP2020066044A (en) * 2018-10-26 2020-04-30 トヨタ自動車株式会社 Lap-welding method for dissimilar metal component
JP7110907B2 (en) 2018-10-26 2022-08-02 トヨタ自動車株式会社 Lap welding method for dissimilar metal members
US11413706B2 (en) 2018-10-26 2022-08-16 Toyota Jidosha Kabushiki Kaisha Method for stack-welding dissimilar metal members

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