Cold Stamping Simulation of Automobile Covering Parts
Thermoforming technology of ultra high strength steel is one of the important ways to reduce the automobile mass. And it is divided into two categories, named indirect and direct thermoforming. In indirect thermoforming, there are two key steps, that is, cold stamping and quenching. Aiming at the key steps of cold stamping technology of indirect thermo-forming, the cold stamping process of automobile covering parts for 22MnB5 steel was simulated by using software Autoform. Its forming results were analyzed and optimized. On the basis of these results, considering the subsequent quenching operation, the analysis of springback and springback compensation were carried out to ensure the subsequent normal procedure.