Simulated analysis and experimental investigation on edge qualities of high strength steels hot blanking parts

Abstract Hot blanking of high strength steels is a new technology, which can improve edge quality, shorten cycle-time and reduce cost because punching and trimming process are completed during the period of hot stamping, before martensite formation. Numerical simulation models for hot blanking parts of B1500HS steel are established by ABAQUS to analyse the influences of different parameters on the fracture surface quality, including die clearances and original temperatures. And for verification, the computed results show good agreement with experimental results. By tests and simulations, the appropriate die clearances and other processing parameters of high strength steels hot blanking are determined.