Magnetic pulse welding of aluminum to steel using uniform pressure electromagnetic actuator

被引:36
|
作者
Yu, Haiping [1 ,2 ]
Tong, Yanchen [1 ]
机构
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Magnetic pulse welding; Sheet; Dissimilar metals; Weldability window; UPEA; Aluminum; Steel; STRENGTH; SHEETS;
D O I
10.1007/s00170-016-9928-y
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The joining of dissimilar metals is required for lightweight structures. The efficient and mechanically robust uniform pressure electromagnetic actuator (UPEA) was used to magnetic pulse welding (MPW) dissimilar metal sheets in this study. This study explored the feasibility of MPW of AA 1060 to Q235 steel sheet. The effects of discharge voltage, vertical gaps between two sheets, and the effect of the width of the joining zone on the connection quality were investigated. The metallurgical joints were obtained under a discharge voltage above 9.5 kV, and the weldability window of AA1060 to Q235 steel sheets was established. Microstructure observations of the MPW joint revealed that the interface of the joint is close to flat. EDS mapping showed mutual diffusion of basic elements across the interface.
引用
收藏
页码:2257 / 2265
页数:9
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