采用球墨铸铁制造拉深模具

本文介绍了在制造拉深模具时，通过可行性分析，以球墨铸铁代替模具钢的方法。达到了投资少，制造简便和周期短的效果，且通过实践证明，还可提高模具寿命。

This paper deals with the method of substiuting nodular iron for die block steel in producing draw cite and makes a practiable research. This method results in the reduction of the investment, the simplification of the manufacture and the shortening of the productive cycle. It is proved by practice that the die life can be prolonged.