Numerical Simulation on the Hot Stamping Process of an Automobile Protective Beam

Abstract

As an important method of plastic forming, sheet metal forming was widely applied to automobile manufactory. High strength sheet steels were used in automobile stamping parts recently, but traditional cold stamping method was hard to produce body parts with complex structure and shape as the steel sheet strength is greater than 1000 MPA, and then the hot stamping forming process arose at the historic moment. In this paper, the hot stamping process of automotive protective beam was studied. The numerical simulation and analysis were conducted for the forming technological property, temperature variation of sheet metal and possibility of spring back and wrinkling by using finite element analysis software DYNAFORM. Possible defects could be predicted, which provided a new theoretical method and technical support to reduce the production cost of similar products and shorten the development cycle.