On the problem of open compressiondie emerged in production, the part is analyzed and a new processing method is put forward. Cold punching technology is replaced by cold extrusion technology.
The boron-doping technology and metallurgical micro-structure of die steel are discussed from the angle of its resistance to repeated shock compression.
结果指出：模具钢渗硼层在多次冲击压缩载荷下发生一定的塑性变形。
3
Based on the analysis of the technological characteristics of the plastic part, a compression model die structure was designed. The die characteristics and the operating process were discussed.