一、前言 关于冲裁加工,目前正处于这样的发展阶段,即必须从单纯注重提高生产速度,转而把着眼点移向采用简易模的小批量生产或制造高精度产品的精密冲裁。 精密冲裁这个词,读者听到的往往是和瑞士发明的精密冲裁法相联系的;而这里介绍的则是指我国(指日本一译注)研究成功的与瑞士精密冲裁法相并列,可以扩大精密冲裁应用范围的新的精密冲裁法一双凹模对向冲裁法。本文对其原理作一说明。 First, the preamble About blanking, is currently in such a stage of development, that is, from a simple focus on increasing the speed of production, the focus shifted to the use of simple mode of small batch production or manufacturing precision blanking precision products. The word precision punching, the reader is often heard and Switzerland invented the precision blanking method is linked; and here is referring to our country (referring to a Japanese translation) research success with the Swiss precision blanking method juxtaposed, you can expand Precision blanking application of the new precision blanking a pair of die-to-blanking method. This paper gives a description of its principle.