Radial-axial Force Controlled Electromagnetic Sheet Deep Drawing: Electromagnetic Analysis
| Autor: | Xiao Zhang, Qi Xiong, Liang Li, Xiaotao Han, Quanliang Cao, Zhongyu Zhou, Zhipeng Lai, Qi Chen |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Engineering
business.product_category business.industry Electromagnetic sheet forming Mechanical engineering General Medicine Mechanics Flange Radial direction Material flow Radial-axial force controlled Strain distribution symbols.namesake symbols Die (manufacturing) Deep drawing Axial force business Radial Force Variation Lorentz force Engineering(all) |
| Zdroj: | Procedia Engineering. 81:2505-2511 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2014.10.358 |
| Popis: | A new approach, radial-axial force controlled (RAFC) electromagnetic sheet forming (EMF), has been developed for hard-form metal sheet deep drawing. Different to the traditional EMF, an additional radial Lorentz force was introduced at the flange region of workpiece to improve the material flow and reduce the maximum strain of workpiece. For this purpose, an EMF system with two coils has been designed. The two coils were used to generate the axial Lorentz force (Fz) on the workpiece region (D1) above the cavity and the radial force (Fr) on the flange region (D2), respectively. The Fz was used to accelerate the D1 region's material in axial direction to shape the workpiece into the die, while the Fr was used to accelerate the D2 region's material in negative radial direction to improve the material flow of the flange. In this paper the electromagnetic analysis of the system has been carried out. As a proof of concept, the variation characteristics of Fr and Fz under different discharging energies and schedules of the coils were simulated and analyzed. The results show that the magnitudes and the action time of the Fr and the Fz can be well controlled, which indicates that the forming can be flexibly controlled. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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