Patent
Joined body of different materials of steel material and aluminum material and method for joining the same
TLDR
In this paper, the problem of providing a joined body of a steel material and an aluminum material which is formed by spot welding and has a high joining strength, and also to provide a method for spot welding the same is solved.Abstract:
PROBLEM TO BE SOLVED: To provide a joined body of a steel material and an aluminum material which is formed by spot welding and has a high joining strength, and also to provide a method for spot welding the same. SOLUTION: The joined body 3 of different materials is formed of the steel material 1 and the aluminum material 2 joined to the steel material through spot welding. The steel material 1 contains 0.1-3.0 wt.% Mn and has a sheet thickness t 1 of 0.3-2.5 mm. The aluminum material 2 contains 0.4-2 wt.% Si and has a sheet thickness t 2 of 0.5-2.5 mm. A plating film 4 made of Zn and/or Al having a film thickness of 3-15 μm and a melting point of 350-950°C is preliminarily formed on a surface of the steel material 1 or the aluminum material 2. A nugget diameter in the spot welding is within a range of 4×t 2 0.5 to 7×t 2 0.5 in relation to the sheet thickness t 2 . COPYRIGHT: (C)2006,JPO&NCIPIread more
Citations
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Patent
Joint product between steel product and aluminum material, spot welding method for the joint product, and electrode chip for use in the joint product
TL;DR: In this article, a joint product between a steel product and an aluminum material, which can realize spot welding with high bonding strength, and a spot welding method for the joint product was provided.
Patent
Multi-step direct welding of an aluminum-based workpiece to a steel workpiece
TL;DR: In this article, a workpiece stack-up that includes at least a steel workpiece and an aluminum-based workpiece can be resistance spot welded by employing a multi-stage spot welding method in which the passage of electrical current is controlled to perform multiple stages of weld joint development.
Patent
Multi-stage resistance spot welding method for workpiece stack-up having adjacent steel and aluminum workpieces
TL;DR: In this article, the multi-stage spot welding method is used to resample a portion of the weld joint that includes an interfacial weld bond area adjacent to and joined with the faying surface of the steel workpiece.
Patent
Aluminum Alloy to Steel Welding Process
TL;DR: In this paper, the welding electrodes are constructed so that, when an electrical current is passed between the electrodes and through the workpiece stack-up, the electrical current has a greater current density in the steel workpiece than in the aluminum alloy workpiece to thereby concentrate heat within a smaller zone.
Patent
Intruding feature in aluminum alloy workpiece to improve al-steel spot welding
TL;DR: In this article, the formation of a weld joint between the adjacent steel and aluminum alloy workpieces is aided by an intruding feature located in an aluminum Alloy workpiece that provides and delineates one side of the workpiece stack-up and against which a welding electrode is pressed over the feature at the weld site.
References
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Patent
Resistance welding method for aluminum and steel
TL;DR: In this paper, a sound welding without using clad material by applying a plating of Al alloy or pure Al on a steel surface with the specified thickness and executing a resistance welding with piling the plated surface on Al surface.
Patent
Method for resistance welding steel and aluminum material
Shoji Inoue,Satoshi Soga +1 more
TL;DR: In this paper, the authors proposed a method to form the part to be welded with enough welding strength between the steel material and aluminum base material without dropping the productivity and to make the use of the general purpose alternative current spot welding machine possible by coating on the surface of the welded steel material.
Patent
Joining method for steel material and aluminum-base material
TL;DR: In this article, the weldbonding method was used to join the steel material to the aluminum-base material with high joint strength by the weld bonding method, where a hard and rugged alloy layer was formed on a spot weld zone, welding strength was increased and a joint having resistance to stress added before the adhesive is hardened.
Patent
Joined body of different kinds and method for resistance spot welding
Hashimoto Shunichi,Mitsuo Hino,Satoru Iwase,Atsushi Kato,Seiji Sasabe,Fumihiro Sato,Hiroyuki Takeda,Masaaki Tsubota,文博 佐藤,淳 加藤,賢亮 坪田,哲 岩瀬,光雄 日野,俊一 橋本,裕之 武田,誠二 笹部 +15 more
TL;DR: In this article, the problem of providing a joined body of different kinds and a method for a spot welding in which a joining having a high breaking energy and strong joining is available at a high efficiency is addressed.
Patent
Clad insert material suitable for resistance welding of surface treated steel sheet and a1 sheet
TL;DR: In this paper, the authors proposed to obtain a clad insert material which can apply to resistance welding of a surface treated steel sheet and an Al sheet, widen the extent of welding condition and have the high joint strength by specifying the thick plate constitution of the steel and aluminum clad sheet.