Simulation of Thermal Distortion in Hot Press Forming with Dissimilar Material TWB

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In order to predict the shape change in hot press forming of a TWB made with HPF1470 boron steel and HSLA340 micro-alloyed steel sheets, a coupled thermo-mechanical-metallurgical finite element model was developed to simulate the process. The simulation consisted of air cooling, forming, die-quenching and, finally, by a treatment designed to relax residual stresses. It is shown in this paper that the experimentally observed distortion in the TWB part was reasonably captured by the simulations.

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330-333

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December 2014

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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