分析了复杂薄板零件拉深过程的力学特征 ,阐明了提高板料成形性能的技术关键 ,提出了一种能大幅度提高板料成形性能的新技术。对一种拉深难度很大的复杂油底壳采用这一新技术的一次拉深成形、常规工艺的一次拉深成形及实际生产中采用的二次拉深成形三种成形过程进行了有限元数值模拟 ,比较结果表明 ,这一新工艺的一次拉深成形的效果最好。 The mechanical characteristics of drawing process of complex sheet metal parts were analyzed. The key technology to improve sheet metal forming performance was clarified. A new technique to improve sheet metal forming properties was proposed. For a deep drawing difficult complex oil pan using the new technology of a drawing, forming a conventional drawing process and the actual production of three deep drawing forming the three forming process finite element Numerical simulation results show that this new process is the best one for deep drawing.