An Investigation of Magnetic Pulse Welding of Al/Cu and Interface Characterization

Author(s):  
Xin Wu ◽  
Jianhui Shang

This paper investigated the effect of magnetic pulse welding (MPW) condition (welding power, surface scratches, and contamination) on the establishment of welding between aluminum and copper tubes, and the associated welding mechanisms. The results showed that higher applied power and surface scratches in tangential direction were in favor for good weld, and oil on the surface prevented welding. Direct evidences were obtained on local interface melting under a high welding power. CuAl intermetallics with different atomic ratios were identified by energy dispersion spectrum (EDS) chemical analysis and by microscratching test. The mechanisms of MPW and the process improvement were discussed.

2021 ◽  
Vol 65 ◽  
pp. 214-227
Author(s):  
Ziqin Yan ◽  
Ang Xiao ◽  
Xiaohui Cui ◽  
Yuanzheng Guo ◽  
Yuhong Lin ◽  
...  

Author(s):  
Yingzi Chen ◽  
Zhiyuan Yang ◽  
Wenxiong Peng ◽  
Huaiqing Zhang

Magnetic pulse welding is a high-speed welding technology, which is suitable for welding light metal materials. In the magnetic pulse welding system, the field shaper can increase the service life of the coil and contribute to concentrating the magnetic field in the welding area. Therefore, optimizing the structure of the field shaper can effectively improve the efficiency of the system. This paper analyzed the influence of cross-sectional shape and inner angle of the field shaper on the ability of concentrating magnetic field via COMSOL software. The structural strength of various field shapers was also analyzed in ABAQUS. Simulation results show that the inner edge of the field shaper directly affects the deformation and welding effect of the tube. So, a new shape of field shaper was proposed and the experimental results prove that the new field shaper has better performance than the conventional field shaper.


2013 ◽  
Vol 213 (8) ◽  
pp. 1348-1354 ◽  
Author(s):  
R.N. Raoelison ◽  
N. Buiron ◽  
M. Rachik ◽  
D. Haye ◽  
G. Franz ◽  
...  

2007 ◽  
pp. 4013-4018 ◽  
Author(s):  
Manuel Marya ◽  
M.J. Rathod ◽  
Surendar Marya ◽  
Muneharu Kutsuna ◽  
Didier Priem

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