多工位全工序连续冲压工艺仿真与实验

Simulation and experiment of multi-position and complete process continuous stamping process

以某电子接插件壳体为研究对象,借助CAE技术对薄壁零件进行多工位冲压工艺研究。首先,采用一次拉延成形数值模拟预测零件的成形缺陷,然后确定零件的多工位冲压工序方案和排样图;其次,采用多工位全工序模拟方法,通过采用不同成形工艺参数组合,对零件整个成形过程不断进行仿真优化,最终达到零件图纸所要求的精度和使用性;最后,采用模拟时的最佳工艺参数组合对零件进行冲压试验,检测和分析实际冲制的零件。结果表明:多工位全工序成形模拟结果与实际试验结果基本吻合。因此,多工位全工序数值模拟方法在多工位级进模设计过程中是有效的和可行的,并且缩短了零件的开发和试模周期。

For the shell of an electronic connector,the multi-position stamping process of thin-walled part was studied by CAE technology. First of all,the forming defects of part were predicted by the numerical simulation of one-step drawing,and then the multi-position stamping process plan and layout diagram of part were determined. Then,the multi-position and complete process simulation method was adopted,and through the combination of different forming process parameters,the whole forming process of part was continuously simulated and optimized to achieve the accuracy and usability requirements by part drawing. Finally,the stamping test of part was conducted by the best combination of process parameters in simulation,then the actual stamping part was detected and analyzed. The results show that the simulation results of multi-position and complete process forming are in agreement with the experimental results. Therefore,the numerical simulation method of multi-position and complete process is effective and feasible in the design process of multi-position progressive die,and the cycle of part development and die test are shorten.