基于附加凹模的精冲工艺与模具研究

The exploration about the precision piercing technology and die of the extra die

介绍一种通过增设附加凹模在普通冲床上实现精密冲裁的新方法。分析了模具结构和实现精冲的内在机理 ,阐述了主要工艺参数的确定方法、主要工艺力的计算及生产中应注意的问题 ,对同类制品的冲压工艺及模具设计具有一定的借鉴作用。

This paper introduces the new method and the mould structure to achieve precision piercing on plain presses with adding extra die :It analyses the die's inherent mechanism to realize precision piercing,expatiates definite ways of the main technology parameters such as clearance、corrective allowance and die thickness and describes the calculation of the main technology force and the main problem of the production. All have a referable effect on the producing stamped and the die design of the same type products.