Transactions of Materials and Heat Treatment

Title：Experiment and simulation of magnetic pulse bulge forming for Al alloy 5A02

Authors： Han Yujie1 Hou Hongliang1 Yu Haiping2 Niu Tao1

Unit： 1. Beijing Aeronautical Manufacturing Technology Research Institute 2.Harbin Institute of Technology

KeyWords： magnetic pulse forming bulge forming Al alloy 5A02 numerical simulation deformation velocity

ClassificationCode：

year,vol(issue):pagenumber：2015,40(4):33-39

Abstract：

Magnetic pulse forming for sheet metal is a high velocity forming technology with the strain rate of 100-1000 s-1. Thus, a large number of parameters during deformation process can not be obtained, which brings huge difficulties for the analysis of the magnetic pulse deformation process. The magnetic pulse forming process of Al alloy 5A02 was researched by combining numerical simulation with process experiments，and the movement processes and magnetic field distributions of the sheets under different discharge voltages were analyzed. The results show that bulge forming occurs firstly at the region with the maximum magnetic pressure, and then other regions deform accordingly. The deformation velocity of the sheet reaches the maximum at 0.2 m·s-1. The maximum velocity in the centre is 116 m·s-1 and the bugling peaks at 0.6 ms. After that, the bugling height decreases slightly due to springback.

Funds：

国家重点基础研究发展计划（2011CB012803）

韩玉杰（1988- ），男，硕士，助理工程师

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