Virtual process design on combined quasi-static and high-speed forming |
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Authors: | Marco Rozgić Yalin Kiliclar Marcus Stiemer Stefanie Reese |
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Institution: | 1. Helmut Schmidt University, Theory of Electrical Engineering, Holstenhof Weg 85, 22043 Hamburg;2. RWTH Aachen University, Institute of Applied Mechanics, Mies-van-der-Rohe-Str. 1, 52074 Aachen |
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Abstract: | Sheet metal forming processes play a key role in a vast number of manufacturing cycles. The pursuit of novel approaches and enhancements of process chains is limited by the tremendous cost of experimental investigations. Hence, virtual process design is a suitable tool to overcome this limitation and to investigate new aspects of the processes via computer aided design. This work focuses on the optimization of a class of triggering pulses utilized in combined quasi-static and electromagnetic high-speed forming that avoid reverse currents. As typical example double exponential pulses are treated. Non-linear, constrained optimization exploiting a LSDYNA simulation of the forming process is used to determine parameters defining a triggering current pulse, yielding an enhanced forming result, in terms of sharper drawing radii. A more detailed discussion of the method is presented in 1]. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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