模面精细化预处理技术应用

Application of refined pretreatment technology on die surface

汽车模具开发过程中板料塑性成形的理论分析数据与现场实际情况的差异是导致型面研配工作量大的重要影响因素,使用受力软件与成形软件研究差异产生的原因,对不同成形区域模面间隙进行预处理以减少钳工工作量。以钳工研配工作量最大的侧围外板为例,在设计阶段对拉深模凸模、凹模和压边圈型面加工数据实施精细化预处理,提出了有针对性的模面处理方法、实施步骤和面片质量检查标准,缩短了25%的钳工研配工时,提高了成形稳定性,零件的表面质量也得到了有效控制,在模具开发中取得了预期效果。

The difference between the theoretical analysis data and the actual situation of plastic forming of sheet metal in the process of automotive die development is an important influence fac⁃tor that lead to a large amount of work in the lapping profiles,the force software and forming soft⁃ware were used to study the causes of the differences,and the gap between the die surface in dif⁃ferent forming areas was pretreated to reduce the workload of the bench worker.Taking the side body outer panel with the largest workload of the bench worker as an example,the machining data of punch,concave die and blank holder profiles were refined pretreated in the design stage,the method of die surface treatment,implementation step and inspection standard of surface quality were put forward,which shorten 25%lapping time of the bench worker and improved the forming stability.The surface quality of the parts had also been effectively controlled,and the expected ef⁃fect had been achieved in the die development.