关键词：钢铁；应变分析；发动机罩；烫印
摘 要：In the paper,it took the hot stamping process of DP steel engine hood for example and took DP800 as object of research.The forming limit,variation of major strain,minor strain and thickness,as well as the potential equality defects were analyzed by using eta/DYNAFORM software.The research results show that duplex steel plate can meet the performance requirements of car engine dumping plank forming,which offers theory basis for the production of similar parts.