Study of electromagnetic pulse spot welding technology without gasket for Electric Vehicle

被引：3
|
作者：
Wu, Hao [1 ]
Li, Chengxiang [1 ]
Zhou, Yan [1 ]
Shen, Ting [1 ]
Wang, Xianmin [1 ]
Zhang, Bingfei [1 ]
机构：
[1] Chongqing Univ, Sch Elect Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400030, Peoples R China
来源：
ENERGY REPORTS | 2022年 / 8卷
基金：
中国国家自然科学基金;
关键词：
Electromagnetic pulse spot welding; Electromagnetic pulse forming; Cu/Al alloy; ALUMINUM;
D O I：
10.1016/j.egyr.2021.11.202
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Electromagnetic pulse spot welding technology (EPSW) has great application prospects in the field of electric vehicles due to the realization of spot welding without gasket. The EPSW of Cu/Al alloy in this article is carried out in two steps. The first step uses electromagnetic force to pre-process the aluminum plate to punch a hump through electromagnetic pulse forming (EMPF). The second step uses electromagnetic force to realize spot welding between the hump and the copper plate. This article studied effects of stamping and spot welding with discharge voltage between 10 kV and 15 kV and compared welding effects of spot welding with coils of different widths. The results show: electromagnetic pulse spot welding technology without gasket was realized; the higher the discharge voltage, the better the stamping effect and spot welding performance; the wide coil can achieve a flat welding interface while the narrow coil can achieve reliable connection at a lower discharge voltage. (C) 2021 Published by Elsevier Ltd.
引用
收藏
页码：1457 / 1462
页数：6
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