Variation of thickness distribution during electromagnetic sheet bulging

被引：4
作者：
Cui, Xiaohui [1 ]
Mo, Jianhua [1 ]
Fang, Jinxiu [1 ]
Li, Jianjun [1 ]
Zhu, Yueting [1 ]
Zhong, Kai [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2015年 / 80卷 / 1-4期
关键词：
Electromagnetic sheet forming; Coupling analysis; Thickness reduction; Material flows; Principle strain; ALUMINUM-ALLOY SHEET; FORMABILITY; EVOLUTION;
D O I：
10.1007/s00170-015-7008-3
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 ANSYS software is used to establish the electromagnetic-structural coupling model and predict the electromagnetic sheet forming process. In comparison with experimental result, the maximum simulation error, about 4.5 %, occurs at the sheet center. Then, the simulation method is used to analyze the effect of discharge voltage on thickness distribution. The results indicated that the location of the maximum thickness reduction transfers from sheet center to the region near the sheet center (A region) and then to the region corresponding to the die corner (B region) with the voltage increases, which also cause the first principle strain changed. In addition, lager magnetic force and the material at sheet flange restrained to flow are the two reasons for the thickness reduction at B region. While the direction of material flows changed by inertial effect is the reason for thickness reduction at A region.
引用
收藏
页码：515 / 521
页数：7
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