Dynamic analysis of electromagnetic sheet metal forming process using finite element method

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• 作者：Quanliang Cao (1)
  Liang Li (1)
  Zhipeng Lai (1)
  Zhongyu Zhou (1)
  Qi Xiong (1)
  Xiao Zhang (1)
  Xiaotao Han (1)
  
• 关键词：Electromagnetic forming ; Electromagnetic force ; Plastic deformation ; Finite element analysis
• 刊名：The International Journal of Advanced Manufacturing Technology
• 出版年：2014
• 出版时间：September 2014
• 年：2014
• 卷：74
• 期：1-4
• 页码：361-368
• 全文大小：1,568 KB
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• 作者单位：Quanliang Cao (1)
  Liang Li (1)
  Zhipeng Lai (1)
  Zhongyu Zhou (1)
  Qi Xiong (1)
  Xiao Zhang (1)
  Xiaotao Han (1)
  
  1. Wuhan National High Magnetic Field Center and State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, 430074, People鈥檚 Republic of China
  
• ISSN：1433-3015

文摘

This paper presents a simple and efficient method for the analysis of dynamic behavior of the workpiece in the electromagnetic forming process. A two-dimensional (2D) axisymmetric finite element model with the equations of electrical equivalent circuit, electromagnetic field, and mechanical field has been developed for calculating the discharge currents through the forming coil, the magnetic forces acting on the workpiece, and the plastic deformation of the workpiece. By considering the effects of the sheet geometry and velocity on the above parameters, the method realizes the full coupling between the electromagnetic fields and the workpiece deformation, which should be more accurate than the existing loose coupling and sequential coupling simulation methods.