不锈钢压塑模具凹形装饰图纹的电化学蚀刻

Etching Decorative Pattern by Electrochemical Machining on Forming Die Made of Stainless Steel

为了在不锈钢压塑模具上加工出精致的装饰图纹，对采用丝网印刷方法印制图纹掩膜、以脉冲电解加工手段蚀除金属的方法进行了研究。蚀刻速度最大可达０２ｍｍ／ｍｉｎ，蚀刻精度最高可达００５ｍｍ，装饰图纹刻痕表面粗糙度值最低为１６μｍ。

A new process for making exquisite pattern on forming die made of stainless steel is investigated. Silk screen process is adopted to make pattern shield film and pulse electrochemical machining is adopted to remove metal in this paper. The maximum etching velocity is 0.2 mm/min and the etching accuracy is about 0.05 mm, the surface roughness value Ra of pattern mark is about 1.6 μm.