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http://dx.doi.org/10.5228/KSPP.2010.19.1.038

Development of Sheet Metal Forming Apparatus Using Electromagnetic Lorentz Force  

Lee, H.M. (부산대학교 항공우주공학과 대학원)
Kang, B.S. (부산대학교 항공우주공학과)
Kim, J. (부산대학교 항공우주공학과)
Publication Information
Transactions of Materials Processing / v.19, no.1, 2010 , pp. 38-43 More about this Journal
Abstract
Electromagnetic forming (EMF) method is one of high-velocity forming processes, which uses electromagnetic Lorentz force. Advantages of this forming technique are summarized as improvement of formability, reduction in wrinkling, non-contact forming and applications of various forming process. In this study, the EMF apparatus is developed. It is designed to be stored in 10 capacitors connected in parallel, each with a capacitance of $50{\mu}F$ and maximum working voltage of 5kV. The system has capacitance of $500{\mu}F$ and maximum stored energy of 6.25kJ. And EMF experiments are carried out to verify the feasibility of the EMF apparatus, which has enough forming force from the results of EMF experiment. In addition, peak current carrying a forming coil is predicted from theoretical background, and verified the predicted value compared with experimental value using the current measurement equipment. Consequently, EMF apparatus developed in this study can be applied to various EMF researches for commercialization.
Keywords
Electromagnetic Forming; High-Velocity Forming Process; Induced Current; Lorentz Force;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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