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http://dx.doi.org/10.5228/KSTP.2014.23.7.431

Design of a Free Bulge Test Coil Using Electromagnetic Forces and Comparison between Experimental and Numerical Results  

Kim, H.K. (Pusan National University)
Noh, H.G. (Pusan National University)
Kang, B.S. (Pusan National University)
Kim, J. (Pusan National University)
Publication Information
Transactions of Materials Processing / v.23, no.7, 2014 , pp. 431-438 More about this Journal
Abstract
For electromagnetic forming(EMF) the most important feature is a forming coil which creates the electromagnetic force(Lorentz force), using current density and a magnetic field. Most previous papers have concentrated on the final configuration of the blank or the efficiency of EMF process. Studies focused on the design parameters affected by the forming coil performance have not been conducted. In order to design a suitable forming coil for an object, the current study uses LS-DYNA EM-Module to not only optimize the coil but also to examine the effect of coil performance. By this method a suitable forming coil was made and tested to determine whether or not good formability was achieved in a free bulge test Numerical analysis was also used. The workpiece was Al 1100-O with a thickness of 1.27mm and the coil was made from copper CW004A, which has good electrical conductivity and is suitable for electrical components.
Keywords
Electromagnetic Forming; Spiral-Type Forming Coil; LS-DYNA EM-Module; High Speed Forming; Lorentz's Force; Electromagnetic-Structural Coupling;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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