An Electro-permanent Magnet Blank Holder Method Considering Influences of Magnetic Field Region

被引：2
|
作者：
Shi R. [1 ]
Qin S. [1 ]
Pan Z. [1 ]
Chen H. [1 ]
Li X. [1 ]
机构：
[1] Key Laboratory of Advanced Forging and Stamping Technology and Science, Ministry of Education, Yanshan University, Hebei, Qinhuangdao
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2023年 / 34卷 / 01期
关键词：
blank holder force control; deep drawing; electro-permanent magnet(EPM); sheet forming;
D O I：
10.3969/j.issn.1004-132X.2023.01.012
中图分类号：
学科分类号：
摘要：
Considering that the EPM blank holder method had the advantages of independent loading, short transmission chain, energy saving and easy control, a new electronically controlled permanent magnet blank holder method with overlap of forming area and magnetic field area was proposed for ferromagnetic sheet forming. Taking the deep drawing of cylindrical parts as an example, the magnetic-mechanics coupling finite element simulation of structural deformations was carried out under different blank holder force loading conditions by using the newly designed blank holder device. And the influences of slab magnetism on the distributions of magnetic fields and blank holder forces were analyzed. The analysis results reveal that the stiffness of newly designed blank holder force loading devices is significantly improved, the new blank holder method has better blank holder effectiveness, and the die structure is more compact. According to the simulation and theoretical analysis results, a deep drawing experimental device was designed and manufactured. The experimental results show that the method of electronically controlled permanent magnet blank holder with the overlap the forming areas and magnetic field areas is completely feasible. © 2023 China Mechanical Engineering Magazine Office. All rights reserved.
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页码：102 / 108
页数：6
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