电极制造在模具的电火花加工中,是至关重要的一个环节。由于模具大多数都具有单件或少量生产的特点,因此,石墨电极的振动成形、成形烧结以及紫铜电极的电铸、精锻、液压成形等工艺方法,在模具制造中就显得很不经济,故较少采用。目前最主要的加工手段,仍然是常规的机械加工。众所周知,紫铜等常用电极材料的机加性能是很差的,尤其某些复杂或精密电极的加工,不仅成本高、周期长,而且质量亦成问题,所 Electrode manufacturing in the mold EDM, is a crucial part. Because most of the molds have the characteristics of single or a small amount of production, so the graphite electrode vibration forming, forming sintering and copper electrode electroforming, precision forging, hydroforming and other process methods in the mold manufacturing is very uneconomical, It is less used. At present the most important means of processing, is still conventional machining. It is well-known that the mechanical properties of common electrode materials, such as copper, are very poor. In particular, the processing of some complicated or precise electrodes not only has high cost and long period, but also poses problems in quality