冲裁工艺参数的合理设计对产品最终成形质量影响很大。采用DEFORM软件建立了板料冲裁过程数值模型,对板料冲裁断裂过程进行了有限元分析,并与实验相结合,确定了能准确模拟板料成形过程的断裂阀值;研究了不同工艺参数对制件断面质量的影响,通过正交法优化了模拟结果,获得了最佳工艺参数组合,并通过实验验证了数值模拟优化结果。 The reasonable design of the blanking process parameters has a great influence on the final forming quality of the product. DEFORM software was used to establish the numerical model of blanking process, and the finite element analysis of the blanking and breaking process of the blanks was carried out. Combined with the experiment, the fracture threshold of the blanking process was determined accurately. The influence of parameters on the cross-section quality of the workpiece was studied. The simulation results were optimized by orthogonal method, and the best combination of process parameters was obtained. The numerical simulation results were verified by experiments.