Abstract : by examining the technical processes of the cold - press dies on silicon - steel plates by metalloscope , the causes of cracks in the cold - press dies are analyzed , from which technical measures that are used to avoid cracking are derived 文摘:通过对硅钢片冷冲模各加工工艺的检查和金相显微观察,分析了冷冲模产生裂纹的原因,并提出了防止裂纹产生的工艺措施。