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。
Analyzed press technology characteristics of vent-windows of the car side board, designed a lancing-drawing compound die.
1979年末，我们加工了全尺寸y—2直升机复合材料桨叶成形凹模，从数控加工的结果看这种方法是成功的。
By the end of 1979, We had produced the full scale forming die of the composite rotor blades of Y-2 type helicopter. The results of the NC machining show that this method is successful.
通过对典型的油封骨架进行工艺分析，采用复合模对骨架加工成形的工艺，并详细说明了此复合模的结构及工作原理。
The process of typical metal insert of oil seal was analyzed, and the composite die was used to form this kind of part. Meanwhile, its structure and working principle were also der demonstrated.
通过对典型的油封骨架进行工艺分析，采用复合模对骨架加工成形的工艺，并详细说明了此复合模的结构及工作原理。
The process of typical metal insert of oil seal was analyzed, and the composite die was used to form this kind of part. Meanwhile, its structure and working principle were also der demonstrated.
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