具有异形截面的长槽形零件,在机械制造业中是很常见的。它们的结构特点是纵向长度显著地大于横截面的尺寸,而且通常都是按大批量来组织生产的。以往采取的加工办法是通过多辊成形机进行轧制,并按一定长度切断,或者是在专用拉丝机上拔制而成。然而,此两种工艺方法都必须具有专用设备,不适宜小批量生产或新产品的试制。本文介绍两种新的冷冲压工艺,可在普通机械压力机上冲制出长槽形零件。实践证明:此种方法既可适用于零件的试制和小批量生产,也适用于大批量生 Long trough-shaped parts with a profiled cross-section are common in the machine building industry. Their structural feature is that the longitudinal length is significantly greater than the size of the cross-section and is often produced in large quantities. In the past to take the processing method is through the multi-roll forming machine rolling, and cut off by a certain length, or drawing in a special drawing machine made. However, both of these processes must have special equipment, not suitable for small batch production or trial production of new products. This article describes two new cold stamping processes that punch out long channel parts on a common mechanical press. Practice has proved that: This method can be applied to the trial and small parts production, but also for high-volume students