Analyzed press technology characteristics of vent-windows of the car side board, designed a lancing-drawingcompound die.
分析了车厢侧板零件通风窗冲压加工的工艺特点，设计了一副针对该零件加工的切口拉伸复合模。
2
Introduced design of the adjustable blanking-drawingcompound for the drawing with flange, the drawing die could adjust the flange size, and satisfied the part tolerance requirement.
This paper analyzed technological peculiarities on the step part, designed a drawing and extruding compound die. It can improve the part quality and benefit.