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http://dx.doi.org/10.7736/KSPE.2013.30.7.733

Effect of Process Parameters in Electromagnetic Forming Apparatus on Forming Load by FEM  

Noh, Hak Gon (Department of Aerospace Engineering, Pusan National Univ.)
Park, Hyeong Gyu (Department of Aerospace Engineering, Pusan National Univ.)
Song, Woo Jin (Industrial Liaison Innovation Center, Pusan National Univ.)
Kang, Beom Soo (Department of Aerospace Engineering, Pusan National Univ.)
Kim, Jeong (Department of Aerospace Engineering, Pusan National Univ.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.30, no.7, 2013 , pp. 733-740 More about this Journal
Abstract
The high-velocity electromagnetic forming (EMF) process is based on the Lorentz force and the energy of the magnetic field. The advantages of EMF include improved formability, wrinkle reduction, and non-contact forming. In this study, numerical simulations were conducted to determine the practical parameters for the EMF process. A 2-D axis-symmetric electromagnetic model was used, based on a spiral-type forming coil. In the numerical simulation, an RLC circuit was coupled to the spiral coil to measure various design parameters, such as the system input current and the electromagnetic force. The simulation results show that even though the input peak current levels were at the same level in each case, the forming condition varied due to differences in the frequency of the input current. Thus, the electromagnetic forming force was affected by the input current frequency, which in turn, determined the magnitude of the current density and the magnetic flux density.
Keywords
Electromagnetic Forming; High-Velocity Forming; RLC Circuit; Lorentz Force;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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