二、电板制造工艺 冲模采用电火花加工后,出现了一种新的制造方式,即凸模用成型磨削加工,凹模用电火花加工。这样一来,就可以达到冲模加工的全部机械化,同时完全避免了热处理变形问题,大大提高了模具加工的质量。但是,这种方式要求电极制造的精度比其他方式 (凹模用电火花加工, Second, the electrical board manufacturing process Die EDM, there has been a new manufacturing methods, namely the punch with the shape grinding, die EDM. As a result, you can achieve the full mechanization of die processing, while completely avoiding the heat treatment deformation, greatly improving the quality of the mold. However, this method requires that the accuracy of the electrode fabrication be higher than that of other methods (EDM for die,