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在使用引伸模或压弯模进行冷冲压加工时,常常会在板材的表面出现擦伤现象,尤其是在加工不锈钢制件时,这种现象会更加严重,有时会出现废品,严重时会造成由摩擦导致的高温粘接,甚至引起生产故障。为了防止这类现象的发生,就需要良好的模具设计、模具的研配质量、较低的表面粗糙度以及尺寸的一致性。多年来的实践表明,模具材料本身的性能是一个非常关键的因素。引起表面擦伤是由模具与板材表面在高应力下相互摩擦而造成的显微焊接结果。
In the case of cold stamping using an extension die or a compression die, scratches often occur on the surface of the sheet, especially when working with stainless steel parts, which can be more serious, sometimes with waste, and in severe cases Friction caused by high temperature bonding, and even lead to production failure. In order to prevent the occurrence of such phenomena, you need good mold design, mold research and development quality, low surface roughness and size consistency. Years of practice shows that the performance of the mold material itself is a very crucial factor. Caused by surface abrasion is caused by the mold and plate surface under high stress friction caused by micro-welding results.