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针对实验室块反铐加工中出现的难以加工较细的微细工具电极问题,根据现有多功能微机床进行设计,按照模块化设计思路,设计出了微细电火花复合加工模块,该模块包括在线块电极磨削加工与在线电极磨削加工两部分。采用块电极磨削与线电极磨削相结合的方法,通过运用不同电源模式实现块反铐加工粗加工、线电极作为中、精磨削的微细电火花电极制作流程,采用蒸馏水为工作液,研究电参数对工具电极影响,并通过该实验验证了该加工工艺方法,且能稳定加工出长直径为50μm、长径比大于84的微细工具电极。
In order to solve the problem that it is difficult to process thinner electrode, which is difficult to be processed in the process of handcuffs in laboratory, according to the existing multi-function micro-machine tool, according to the concept of modular design, the micro-EDM processing module is designed. Block electrode grinding and grinding of the two parts of the electrode. The method of combining the block electrode grinding and the wire electrode grinding is adopted to realize the block backcuffing roughing by using different power modes, the wire electrode is used as the manufacturing process of the medium and fine grinding micro-arc electrode, the working fluid is distilled water, The influence of electrical parameters on the tool electrode was studied. The processing method was validated by this experiment, and the fine tool electrode with a long diameter of 50μm and an aspect ratio of more than 84 could be stably processed.