[Oral Presentation]Numerical simulation and experimental results of radial Lorentz force assisted electro-hydraulic sheet forming process

Numerical simulation and experimental results of radial Lorentz force assisted electro-hydraulic sheet forming process

ID：41 Submission ID：25 View Protection：ATTENDEE Updated Time：2020-10-15 14:24:47 Hits：243 Oral Presentation

Start Time：2020-11-04 09:00 （Asia/Shanghai）

Duration：15min

Session：[F] High Magnetic Field Engineering and Fusion Technology » [F2] Session 25 and Session 30

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Abstract

Electro-hydraulic forming (EHF) is a high velocity forming (HVF) process which utilizes the underwater discharge to produce a shock pressure as driving force. Electromagnetic forming (EMF) is a HVF process which utilizes electromagnetic coil to produce a pulsed Lorentz force as forming force. This paper shall combine these two processes to improve the formability in sheet metal forming. While EHF is used to accelerate the sheet metal above die cavity, a dedicated EMF process is used to generate a radial inward Lorentz force at sheet periphery, thus enhancing the draw-in material flow of the sheet flange. We shall validate the feasibility of the proposed method by experiments, and in addition, we shall reveal the underlying process dynamics by the numerical simulation, which explains the underlying mechanism of the proposed process on improving the forming behavior.

Keywords

Electromagnetic forming,Electro-hydraulic forming,Metal flow control,Plastic deformation behavior,Radial Lorentz force

Speaker

Chen Wang

Huazhong University of Science & Technology

Submission Author

Chen Wang Huazhong University of Science & Technology

Zhipeng Lai Huazhong University of Science and Technology

Changxing Li Huazhong University of Science and Technology

Meng Chen Huazhong University of Science and Technology

Chenwei Zhang Huazhong University of Science and Technology

Quanliang Cao Huazhong University of Science and Technology

Xiaotao Han Huazhong University of Science and Technology

Liang Li Huazhong University of Science and Technology