JPH0455066A - Lap resistance welding method of aluminum material and steel material - Google Patents
Lap resistance welding method of aluminum material and steel materialInfo
- Publication number
- JPH0455066A JPH0455066A JP2166512A JP16651290A JPH0455066A JP H0455066 A JPH0455066 A JP H0455066A JP 2166512 A JP2166512 A JP 2166512A JP 16651290 A JP16651290 A JP 16651290A JP H0455066 A JPH0455066 A JP H0455066A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- materials
- aluminum
- current
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 135
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 238000003466 welding Methods 0.000 title claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 title claims description 52
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 52
- 238000000034 method Methods 0.000 title claims description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000002739 metals Chemical class 0.000 claims abstract description 6
- 238000005253 cladding Methods 0.000 claims description 16
- 238000002845 discoloration Methods 0.000 abstract description 7
- 230000006866 deterioration Effects 0.000 abstract description 5
- 238000005304 joining Methods 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 206010041662 Splinter Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Abstract
Description
（産業上の利用分野）
本発明はアルミニウム又はその合金からなるアルミニウ
ム系材と炭素鋼又はステンレス鋼などの鋼系材との異種
金属を抵抗溶接するアルミニウム系材と鋼系材との重ね
抵抗溶接方法に関するものである。
（従来の技術）
従来、異種金属溶接継手の接合方法、特にアルミニウム
又はその合金からなるアルミニウム系材（以下、単に「
アルミニウム材」という）と、炭素鋼又はステンレス鋼
などの鋼系材（以下、単に「鋼材」という）とを抵抗ス
ポット溶接する方法として、以下の方法が知られている
。
まず、第３図に示すように、鋼板の一方の表面にアルミ
ニウム被膜１０を形成した。いわゆるアルミナイズド鋼
板をインサート材２０として使用し、このインサート材
２０を鋼材３０とアルミニウム材４０との間にアルミニ
ウム同士及び鋼同士が接触するように挿入して接合する
方法がある。
また、第３図に示したアルミニウム被膜１０の替わりに
亜鉛又は錫のメツキを施し、このメツキ層を介してアル
ミニウム材と鋼材とを接合する方法もある。
更に、５０重量％の亜鉛を含有するアルミニウムー亜鉛
合金をインサート材として使用して鋼材とアルミニウム
材とを接合する方法もある。
更にまた、鋼とアルミニウムとのクラッド材をインサー
ト材とし、被溶接材及びインサート材の同種金属同士を
接触させて接合する方法がある。
（発明が解決しようとする課題）
しかしながら、これらのいずれの方法においても、得ら
れた溶接継手部は、強度のバラツキが大きく、更に延性
が低いという問題点がある。
前述の種々の方法の中では、鋼とアルミニウムのクラッ
ド材をインサートする方法が最も安定的ではあるが、そ
れでも、従来の１パス通電では、以下のような問題点が
あった。
すなわち、鋼とアルミニウムの固有抵抗の違いからアル
ミニウム材を接合するに必要な電流は同一板厚の場合で
鋼の３〜５倍となり、鋼にとってみれば過大電流による
過大発熱が生じ、散り、割れ、変色、ひいてはクラッド
材の鋼・アルミニウム界面への熱影響により脆い金属間
化合物の生成を促進させてしまう可能性があり、大きな
問題であった。
一般に構造物への適用を考えると、強度的には鋼材の方
がアルミニウム材よりも強度が高いために、板厚構成と
しては、アルミニウム材は鋼材よりも厚くなるのが一般
的であり、したがって、前述の問題点が更に助長される
こととなり、工業的には大きな問題点であった。
本発明は、上記従来技術の問題点を解決し、アルミニウ
ム系材と鋼系材との重ね抵抗溶接に際して、散り、割れ
、変色、溶接継手部の劣化等を効果的に防止し得る溶接
方法を提供することを目的とするものである。
（課題を解決するための手段）
本発明者は、前記課題を解決するために鋭意研究を重ね
た結果、アルミニウム系材と鋼系材との間に、アルミニ
ウム系と鋼系のクラッド材を同種系金属が対向するよう
な形で介装して重ね合わせて重ね抵抗溶接に際し、鋼系
材並びにアルミニウム系材のそれぞれの溶接入熱を考慮
した２ステップ通電方式を見い出し、ここに本発明をな
したものである。
すなわち１本発明は、アルミニウム系材と鋼系材との間
に、アルミニウム系と鋼系のクラッド材を同種系金属が
対向するように介装して重ね合わせ、溶接電流を通電す
るアルミニウム系材と鋼系材との重ね抵抗溶接方法にお
いて、鋼系材の溶接入熱に合わせた電流をまず通電し、
しかる後にアルミニウム系材の溶接入熱に合わせた電流
を通電する２ステップ通電を行うことを特徴とするアル
ミニウム系材と鋼系材との重ね抵抗溶接方法を要旨とす
るものである。
以下に本発明を更に詳述する。
（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と
アルミニウム系のクラッド材を被溶接材である鋼系材並
びにアルミニウム系材の間に介装するが、その際、クラ
ッド材の鋼系を被溶接材の鋼系材に、またクラッド材の
アルミニウム系を被溶接材のアルミニウム系材にそれぞ
れ対向させて配置させることを前提としている。
その後、これらの材料を抵抗スポット溶接電極間に挾み
込んで通電するが、通電方式は２ステップ通電を採用す
る。
まず、銅系材料の組合せ、すなわち、被溶接材の鋼系材
の種類、板厚並びにクラッド材を構成している鋼系の種
類、板厚などから考えられる適正な溶接電流条件にて通
電する。
その後、アルミニウム系材料の組合せ、すなわち被溶接
材のアルミニウム系材の種類、板厚並びにクラッド材を
構成しているアルミニウム系の種類、板厚などから考え
られる適正な溶接電流条件にて通電する。
この方法によれば、まず銅系材料同士が溶融接合し、次
のステップでアルミニウム材料同士が溶融接合すること
となる。
ここで、この方法によらず、従来の１パス溶接を行うと
、本発明における第１ステップ通電がないため、被溶接
材の鋼系材とクラッド材を構成している鋼系との界面が
未だ金属的に接合していないために、その界面における
いわゆる界面抵抗が大きく存在し、被溶接材のアルミニ
ウム系材とクラッド材を構成しているアルミニウム系を
接合させ得る条件下では、過大に発熱し、散り、割れ、
変色などの欠陥が発生することとなる。しかし、本発明
の方法によれば、鋼材料同士を先ず接合させることを目
的とした第１ステツプの通電を行うことにより、予め鋼
材料界面が溶融接合するので、上記問題の発生原因にな
る鋼材料間の界面抵抗を抑えることができるのである。
また、一般に通電方向に関し、直流型溶接機の場合には
プラス側の電極に近い側が発熱し易いことが経験される
ところであるが、本発明のように第１ステツプ、第２ス
テツプの各ステップ毎に溶融接合させる目的の部位が異
なる場合は、このことをより積極的に利用することが可
能である。すなわち、第１ステツプで鋼材料同士を溶融
接合させる場合は鋼材側をプラス側に配置し、その後の
第２ステツプでアルミニウム材料同士を溶融接合させる
場合は、アルミニウム材側をプラス側に配置する方法で
ある。
交流式溶接機の場合は、この方法は採用されないが、コ
ンデンサー式、整流式、低周波式の場合は可能であり、
通電方向が固定の場合は材料の反転により可能であり、
通電方向が反転する場合は１回の加圧サイクルの中で可
能となる。
本発明における被溶接材、クラッド材の種類としては各
種の材料が使用できることは云うまでもない。
次に本発明の実施例を示す、なお１本例は抵抗スポット
溶接の場合であるが、シーム溶接又はプロジェクシ目ン
溶接等の他の重ね合わせ抵抗溶接についても容易に本発
明を適用できることは云うまでもない。
（実施例）
第１表に示す被溶接材、インサート材（クラッド材）を
用い、これらを第１図及び第２図に示す要領にて重ね合
わせて、第１表に示す通電方式により抵抗スポット溶接
試験を行った。
なお、他の溶接条件として、加圧力は３００ｋｇ、通電
電流、通電時間は１ステツプ１２〜１４ｋＡ、４サイク
ル、２ステツプ２３〜２５ｋＡ、４サイクル、電極の形
状寸法は先端曲率半径１００■のＲ型電極とした。
試験結果を第１表に併記する。
第１表より明らかなように１本発明例は、いずれも散り
１割れ、変色、継手の変形などがなく、優れた結果が得
られている。これは１本発明法が銅系材料にとって過大
入熱とならないような手段であり、そのために散り、割
れ、鋼表面の変色並びにクラッド界面への余分な熱によ
る継手部の変形能の劣化を抑制したためである。(Industrial Application Field) The present invention relates to lap resistance welding of aluminum-based materials and steel-based materials, which involves resistance welding of dissimilar metals such as an aluminum material made of aluminum or its alloy and a steel material such as carbon steel or stainless steel. It is about the method. (Prior Art) Conventionally, there has been a method for joining dissimilar metal weld joints, particularly an aluminum-based material made of aluminum or its alloy (hereinafter simply referred to as "
The following method is known as a method for resistance spot welding a steel material such as carbon steel or stainless steel (hereinafter simply referred to as "steel material"). First, as shown in FIG. 3, an aluminum coating 10 was formed on one surface of a steel plate. There is a method of joining by using a so-called aluminized steel plate as the insert material 20 and inserting the insert material 20 between the steel material 30 and the aluminum material 40 so that the aluminum and the steel come into contact with each other. There is also a method of applying zinc or tin plating instead of the aluminum coating 10 shown in FIG. 3 and joining the aluminum material and the steel material via this plating layer. Furthermore, there is also a method of joining steel materials and aluminum materials using an aluminum-zinc alloy containing 50% by weight of zinc as an insert material. Furthermore, there is a method in which a cladding material of steel and aluminum is used as an insert material, and the materials to be welded and the insert material of the same type are brought into contact with each other and joined. (Problems to be Solved by the Invention) However, in any of these methods, there are problems in that the obtained welded joints have large variations in strength and further have low ductility. Among the various methods described above, the method of inserting a cladding material of steel and aluminum is the most stable, but the conventional one-pass energization still has the following problems. In other words, due to the difference in specific resistance between steel and aluminum, the current required to join aluminum materials is 3 to 5 times that of steel for the same plate thickness, and for steel, the excessive current causes excessive heat generation, causing it to splinter and crack. This was a major problem, as it could lead to discoloration and, in turn, promote the formation of brittle intermetallic compounds due to thermal effects on the steel/aluminum interface of the cladding material. Generally speaking, when considering application to structures, steel materials have higher strength than aluminum materials, so aluminum materials are generally thicker than steel materials in terms of plate thickness composition. , the above-mentioned problems were further exacerbated, and this was a big problem from an industrial perspective. The present invention solves the problems of the prior art described above and provides a welding method that can effectively prevent splintering, cracking, discoloration, deterioration of welded joints, etc. during lap resistance welding of aluminum-based materials and steel-based materials. The purpose is to provide (Means for Solving the Problems) As a result of extensive research to solve the above problems, the present inventor has discovered that aluminum-based and steel-based cladding materials of the same type are used between aluminum-based materials and steel-based materials. We have discovered a two-step energization method that takes into consideration the welding heat input of steel-based materials and aluminum-based materials when performing lap resistance welding in which the metals are interposed and overlapped in a manner that they face each other, and the present invention is hereby incorporated. This is what I did. That is, 1 the present invention provides an aluminum-based material in which aluminum-based and steel-based cladding materials are interposed and overlapped between an aluminum-based material and a steel-based material so that similar metals face each other, and a welding current is applied to the aluminum-based material. In the lap resistance welding method for welding steel and steel materials, first apply a current that matches the welding heat input of the steel material,
The gist of the present invention is a lap resistance welding method for aluminum-based materials and steel-based materials, which is characterized by carrying out two-step energization in which a current is then applied in accordance with the welding heat input of the aluminum-based materials. The present invention will be explained in further detail below. (Function) In the present invention, a steel-based and aluminum-based cladding material that has been previously joined by another method is interposed between the steel-based material and aluminum-based material that are the materials to be welded. The premise is that the steel material of the material is placed opposite the steel material of the material to be welded, and the aluminum material of the cladding material is placed opposite to the aluminum material of the material to be welded. These materials are then sandwiched between resistance spot welding electrodes and energized, using a two-step energization method. First, electricity is applied under appropriate welding current conditions that can be considered based on the combination of copper materials, i.e., the type and thickness of the steel material of the material to be welded, and the type and thickness of the steel that makes up the cladding material. . Thereafter, electricity is applied under appropriate welding current conditions that can be considered based on the combination of aluminum materials, that is, the type and thickness of the aluminum material of the material to be welded, and the type and thickness of the aluminum material constituting the cladding material. According to this method, copper-based materials are first fused and bonded, and in the next step, aluminum materials are fused and bonded to each other. Here, if conventional one-pass welding is performed without using this method, there is no energization in the first step in the present invention, so the interface between the steel material of the welded material and the steel material constituting the cladding material is Because they have not yet been joined metallically, there is a large so-called interfacial resistance at the interface, and under conditions where the aluminum material of the workpiece and the aluminum material that makes up the cladding material can be joined, excessive heat generation occurs. , scatter, crack,
Defects such as discoloration will occur. However, according to the method of the present invention, the interface between the steel materials is melted and joined in advance by conducting the first step of energization for the purpose of joining the steel materials together. This makes it possible to suppress the interfacial resistance between materials. In addition, regarding the direction of current flow, in the case of DC welding machines, it is generally experienced that the side closer to the positive electrode is more likely to generate heat, but as in the present invention, heat is generated more easily at each step of the first step and the second step. If the target parts to be melted and joined are different, this fact can be utilized more actively. In other words, when steel materials are fused together in the first step, the steel material side is placed on the plus side, and when aluminum materials are fused and bonded together in the subsequent second step, the aluminum material side is placed on the plus side. It is. This method is not adopted for AC welding machines, but it is possible for capacitor type, rectifier type, and low frequency type welding machines.
If the current direction is fixed, this is possible by reversing the material.
In the case where the current direction is reversed, it is possible to reverse the current direction within one pressurization cycle. It goes without saying that various materials can be used as the material to be welded and the cladding material in the present invention. Next, an example of the present invention will be shown. Although this example is a case of resistance spot welding, it is understood that the present invention can be easily applied to other overlap resistance welding such as seam welding or projection eye welding. Needless to say. (Example) Using the materials to be welded and insert materials (cladding materials) shown in Table 1, superimpose them in the manner shown in Figs. A welding test was conducted. Other welding conditions include a pressurizing force of 300 kg, current and time of 1 step of 12 to 14 kA, 4 cycles, 2 steps of 23 to 25 kA, 4 cycles, and an R-type electrode with a tip radius of curvature of 100 square meters. It was used as an electrode. The test results are also listed in Table 1. As is clear from Table 1, all of the examples of the present invention exhibited excellent results, with no cracking, discoloration, or joint deformation. This is because the method of the present invention does not cause excessive heat input to the copper-based material, and therefore suppresses splintering, cracking, discoloration of the steel surface, and deterioration of the deformability of the joint due to excess heat to the cladding interface. This is because.
（発明の効果）
以上詳述したように、本発明によれば、アルミニウム系
材と鋼系材との異種金属の重ね抵抗溶接に際して、鋼系
材及びアルミニウム系材の溶接入熱を考慮した通電方式
を採るので、散り、割れ、変色、溶接継手部の劣化等を
効果的に防止することができる。(Effects of the Invention) As detailed above, according to the present invention, when performing lap resistance welding of dissimilar metals such as an aluminum material and a steel material, welding heat input of the steel material and the aluminum material is considered. Since this method is adopted, it is possible to effectively prevent scattering, cracking, discoloration, deterioration of welded joints, etc.
第１図は本発明における被溶接材及びクラッド材の配置
を説明する断面図、第２図は本発明による通電要領を説
明する断面図、第３図は従来例のの被溶接材及びインサ
ート材の配置を説明する断面図である。
１・・・被溶接材（鋼系材）、２・・・被溶接材（アル
ミニウム系材）、３・・・クラッド材、４・・・クラッ
ド材（鋼系）、５・・・クラッド材（アルミニウム系）
、６・・・電極。
特許出願人 株式会社神戸製鋼所
代理人弁理士 中 村 尚Fig. 1 is a sectional view illustrating the arrangement of the welded material and cladding material in the present invention, Fig. 2 is a sectional view illustrating the energization procedure according to the present invention, and Fig. 3 is the welded material and insert material of the conventional example. FIG. 1... Material to be welded (steel based material), 2... Material to be welded (aluminum based material), 3... Clad material, 4... Clad material (steel based material), 5... Clad material (aluminum-based)
, 6...electrode. Patent applicant Hisashi Nakamura, patent attorney representing Kobe Steel, Ltd.
Claims (2)
ム系と鋼系のクラッド材を同種系金属が対向するように
介装して重ね合わせ、溶接電流を通電するアルミニウム
系材と鋼系材との重ね抵抗溶接方法において、鋼系材の
溶接入熱に合わせた電流をまず通電し、しかる後にアル
ミニウム系材の溶接入熱に合わせた電流を通電する２ス
テップ通電を行うことを特徴とするアルミニウム系材と
鋼系材との重ね抵抗溶接方法。(1) Aluminum-based and steel-based cladding materials are interposed between the aluminum-based material and steel-based material so that similar metals face each other, and the welding current is applied to the aluminum-based material and the steel-based material. In the method of lap resistance welding with materials, a two-step energization process is performed in which a current is first applied in accordance with the welding heat input of the steel material, and then a current is applied in accordance with the welding heat input of the aluminum material. A lap resistance welding method for aluminum and steel materials.
せて通電する場合は鋼材側から通電し、アルミニウム系
材の溶接入熱に合わせた電流を通電する場合はアルミニ
ウム材側から通電する請求項１に記載の方法。(2) Regarding the current direction, when applying current in accordance with the welding heat input of steel-based materials, apply the current from the steel material side, and when applying current in accordance with the welding heat input of aluminum-based materials, apply the current from the aluminum material side. The method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166512A JPH0455066A (en) | 1990-06-25 | 1990-06-25 | Lap resistance welding method of aluminum material and steel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166512A JPH0455066A (en) | 1990-06-25 | 1990-06-25 | Lap resistance welding method of aluminum material and steel material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0455066A true JPH0455066A (en) | 1992-02-21 |
Family
ID=15832710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2166512A Pending JPH0455066A (en) | 1990-06-25 | 1990-06-25 | Lap resistance welding method of aluminum material and steel material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0455066A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302797A (en) * | 1991-08-30 | 1994-04-12 | Sumitomo Metal Industries, Ltd. | Resistance welding of aluminum |
| 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 |
| US6554178B1 (en) | 1999-04-08 | 2003-04-29 | Quallion Llc | Battery case feedthrough |
| US6716554B2 (en) | 1999-04-08 | 2004-04-06 | Quallion Llc | Battery case, cover, and feedthrough |
| WO2005102586A1 (en) * | 2004-04-21 | 2005-11-03 | Kabushiki Kaisha Kobe Seiko Sho | Joined body of dissimilar materials comprising steel material and aluminum material, and joining method therefor |
| JP2006167801A (en) * | 2004-11-22 | 2006-06-29 | Kobe Steel Ltd | Joined body of dissimilar materials comprising steel material and aluminum material and joining method therefor |
| EP1728578A1 (en) | 2005-06-01 | 2006-12-06 | Kabushiki Kaisha Kobe Seiko Sho | Steel sheet for dissimilar materials weldbonding to aluminum material and dissimilar materials bonded body |
| JP2008272825A (en) * | 2007-03-30 | 2008-11-13 | Nissan Motor Co Ltd | Bonding method of dissimilar metal and bonding structure |
| WO2009141032A1 (en) * | 2008-05-20 | 2009-11-26 | Bayerische Motoren Werke Aktiengesellschaft | Composite pressure gas tank |
| US8507825B2 (en) | 2007-03-30 | 2013-08-13 | Nissan Motor Co., Ltd. | Bonding method of dissimilar materials made from metals and bonding structure thereof |
| CN106938367A (en) * | 2017-05-04 | 2017-07-11 | 王蘋 | The electric resistance welding method of aluminium and aluminium alloy and steel and steel construction |
| CN109420834A (en) * | 2017-08-25 | 2019-03-05 | 通用汽车环球科技运作有限责任公司 | For engaging the system and method for the structure being formed from different materials |
| JP2019130589A (en) * | 2018-02-01 | 2019-08-08 | 本田技研工業株式会社 | Uam transition for welding different metal portion |
| CN110480142A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of upper limit Mn content R350HT rail flash welding joint microstructure in control |
| CN110480141A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique for controlling lower limit Mn content R350HT rail flash welding joint microstructure |
| CN110480140A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of upper control limit Mn content R350HT rail flash welding joint microstructure |
| CN110480143A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of control electrode lower limit Mn content R350HT rail flash welding joint microstructure |
| CN110480144A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of Mn content R350HT rail flash welding joint microstructure is limited in control |
| CN110480139B (en) * | 2019-08-26 | 2022-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with lower limit Mn content R350HT |
| CN110480138B (en) * | 2019-08-26 | 2022-08-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling upper limit Mn content R350HT steel rail flash welding joint structure |
| US11465390B2 (en) | 2020-03-02 | 2022-10-11 | Honda Motor Co., Ltd. | Post-process interface development for metal-matrix composites |
-
1990
- 1990-06-25 JP JP2166512A patent/JPH0455066A/en active Pending
Cited By (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302797A (en) * | 1991-08-30 | 1994-04-12 | Sumitomo Metal Industries, Ltd. | Resistance welding of aluminum |
| 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 |
| US6716554B2 (en) | 1999-04-08 | 2004-04-06 | Quallion Llc | Battery case, cover, and feedthrough |
| US7108166B2 (en) | 1999-04-08 | 2006-09-19 | Quallion Llc | Method for sealing a battery case |
| US6554178B1 (en) | 1999-04-08 | 2003-04-29 | Quallion Llc | Battery case feedthrough |
| US7951465B2 (en) | 2004-04-21 | 2011-05-31 | Kobe Steel, Ltd. | Joined body of dissimilar materials comprising steel material and aluminum material, and joining method therefor |
| WO2005102586A1 (en) * | 2004-04-21 | 2005-11-03 | Kabushiki Kaisha Kobe Seiko Sho | Joined body of dissimilar materials comprising steel material and aluminum material, and joining method therefor |
| JP2006167801A (en) * | 2004-11-22 | 2006-06-29 | Kobe Steel Ltd | Joined body of dissimilar materials comprising steel material and aluminum material and joining method therefor |
| JP4690087B2 (en) * | 2004-11-22 | 2011-06-01 | 株式会社神戸製鋼所 | Dissimilar joints of steel and aluminum and their joining methods |
| EP1728578A1 (en) | 2005-06-01 | 2006-12-06 | Kabushiki Kaisha Kobe Seiko Sho | Steel sheet for dissimilar materials weldbonding to aluminum material and dissimilar materials bonded body |
| JP2006336070A (en) * | 2005-06-01 | 2006-12-14 | Kobe Steel Ltd | Steel sheet for welding joining as different material with aluminum material, and different material-joined body |
| US7521129B2 (en) | 2005-06-01 | 2009-04-21 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Steel sheet for dissimilar materials weldbonding to aluminum material and dissimilar materials bonded body |
| JP4555160B2 (en) * | 2005-06-01 | 2010-09-29 | 株式会社神戸製鋼所 | Steel plate for dissimilar welding with aluminum material and dissimilar material joint |
| US8507825B2 (en) | 2007-03-30 | 2013-08-13 | Nissan Motor Co., Ltd. | Bonding method of dissimilar materials made from metals and bonding structure thereof |
| JP2008272825A (en) * | 2007-03-30 | 2008-11-13 | Nissan Motor Co Ltd | Bonding method of dissimilar metal and bonding structure |
| WO2009141032A1 (en) * | 2008-05-20 | 2009-11-26 | Bayerische Motoren Werke Aktiengesellschaft | Composite pressure gas tank |
| US8397939B2 (en) | 2008-05-20 | 2013-03-19 | Bayerische Motoren Werke Aktiengesellschaft | Composite compressed gas tank |
| CN106938367A (en) * | 2017-05-04 | 2017-07-11 | 王蘋 | The electric resistance welding method of aluminium and aluminium alloy and steel and steel construction |
| CN109420834A (en) * | 2017-08-25 | 2019-03-05 | 通用汽车环球科技运作有限责任公司 | For engaging the system and method for the structure being formed from different materials |
| JP2019130589A (en) * | 2018-02-01 | 2019-08-08 | 本田技研工業株式会社 | Uam transition for welding different metal portion |
| CN110480140A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of upper control limit Mn content R350HT rail flash welding joint microstructure |
| CN110480141A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique for controlling lower limit Mn content R350HT rail flash welding joint microstructure |
| CN110480142A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of upper limit Mn content R350HT rail flash welding joint microstructure in control |
| CN110480143A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of control electrode lower limit Mn content R350HT rail flash welding joint microstructure |
| CN110480144A (en) * | 2019-08-26 | 2019-11-22 | 攀钢集团攀枝花钢铁研究院有限公司 | The technique of Mn content R350HT rail flash welding joint microstructure is limited in control |
| CN110480141B (en) * | 2019-08-26 | 2021-07-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with middle and lower limit Mn content R350HT |
| CN110480140B (en) * | 2019-08-26 | 2021-07-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with upper limit Mn content R350HT |
| CN110480143B (en) * | 2019-08-26 | 2021-07-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with lower limit Mn content R350HT |
| CN110480142B (en) * | 2019-08-26 | 2021-07-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with middle and upper limit Mn content R350HT |
| CN110480144B (en) * | 2019-08-26 | 2021-07-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of medium-limit Mn content R350HT steel rail |
| CN110480139B (en) * | 2019-08-26 | 2022-08-05 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling flash welding joint structure of steel rail with lower limit Mn content R350HT |
| CN110480138B (en) * | 2019-08-26 | 2022-08-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Process for controlling upper limit Mn content R350HT steel rail flash welding joint structure |
| US11465390B2 (en) | 2020-03-02 | 2022-10-11 | Honda Motor Co., Ltd. | Post-process interface development for metal-matrix composites |
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