我厂外购的硅钢片冲模,安装在冲力为8t的冲床上,试冲过程中,出现凹模开裂现象,造成停产。该批冷冲模钢种和热处理工艺不详。为了查明造成开裂的原因,避免模具早期失效,对失效的模具进行了分析。 I purchased outside the plant silicon steel die, installed in the punch for the impact of 8t, the test process, the phenomenon of die cracking, resulting in discontinued. The batch of cold stamping steel and heat treatment process is unknown. In order to find out the cause of the cracking and avoid the early failure of the mold, the failed mold was analyzed.