Abstract
The quenching operation during the hot stamping process is critical to the final properties of formed parts. Current design for die-cooling system uses gun-drilled straight channels and the optimization of design parameters is based on the results of a large number of finite element simulations. The simulation process will be time consuming if the entire model is used. In this paper, to reduce time cost of the FE simulation, segmented FE models were developed to optimize the geometries of the cooling system and response surface method was used. A typical U-shape component was used in the optimization process. To verify the optimization results with segmented models, simulations with the entire model were carried out. The results show that very good agreement was achieved and the computational time saves up to 92.6% compared with the entire model of the U-shape component.
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