1. 以薄壁宽凸缘筒形件级进模的设计为例，介绍了采用带料切口连续拉伸方法，包括步距冲裁、切口冲裁、连续拉伸、冲孔、翻边和落料，生产效率较高。 The continuous drawing method for strip material with notching was introduced with the design of progressive die for thin wall and wide flange truckfest component as example.