Development of next generation resistance spot welding technologies improving the weld properties of advanced high strength steel sheets

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作者：
Joining and Strength Res. Dept., Steel Res. Lab., JFE Steel, Japan [1 ]
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来源：
JFE Tech. Rep. | / 20卷 / 85-91期
关键词：
Welds - Steel sheet - High strength steel;
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摘要：
The new technologies of resistance spot welding, which has been widely used for auto body production, are significant to realize the high collision safety of car body. Pulse SpotTM welding, utilizing the short-time high-current post-heating can improve the weld joint strength of high strength steel sheets. Intelligent SpotTM welding, varying the force and welding current during welding, enables to mitigate the limitation of the three sheets lap welding which is more frequently performed with increased application of high strength steels.
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