论文部分内容阅读
化学铣削(简称化铣)就是用化学方法切削金属,化学抛光属于化学铣削的范畴。工件经过化学抛光能达到理想的表面粗糙度,在模具制造中我们应用了化学抛光工艺。我国的型腔模和热锻模都采用电火花加工。加工后模具型腔表面形成一层白亮变质层,该层有较大的残余拉应力,硬度高,粗糙度差,有时还有裂纹,影响寿命,为此需要抛光。以前用手工抛光,劳动强度大,费时间。现
Chemical milling (referred to as milling) is the chemical method of cutting metal, chemical polishing is a category of chemical milling. The workpiece after chemical polishing can achieve the desired surface roughness, in the mold we use the chemical polishing process. China’s cavity mold and hot forging dies are used EDM. After processing, a white bright layer is formed on the surface of the mold cavity. The layer has larger residual tensile stress, high hardness, poor roughness, and sometimes cracks, affecting the life, and polishing is needed for this purpose. Previously polished by hand, labor-intensive, time-consuming. Now