Development of New Aluminum Joining Techniques for Automobile Manufacturing (Resistance Spot Welding, Friction Stir Welding, Dissimilar Metals Arc Spot Welding)

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作者：
Goto, Takashi
Okuda, Masaki
Toda, Kaname
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来源：
R and D: Research and Development Kobe Steel Engineering Reports | 2024年 / 73卷 / 02期
关键词：
Aluminum coated steel - Electric arc welding - Resistance welding - Resistance welding machines;
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摘要：
This paper gives an overview and examples of the improvement of aluminum joining technologies developed by Kobe Steel in such areas as resistance spot welding (RSW), friction stir welding (FSW), and dissimilar metals arc spot welding (DASW). It has been found that in resistance spot welding, the weld time affects the stability of the joining strength, which is expected to improve the reliability of the aluminum resistance spot weld. For friction stir welding, a newly designed tool has been confirmed to remove burrs, which inevitably occur, in one step while joining. Additionally, DASW is a new approach to dissimilar metals joining, a technology that enables high-strength joining while utilizing existing arc welding machines. The DASW joint strength exceeds the strength specified by JIS for aluminum resistance spot welding. © 2024 Kobe Steel Ltd. All rights reserved.
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页码：119 / 123
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