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一、问题的提出放电加工的第二对基本矛盾是加工速度与表面光洁度的矛盾。虽然这对矛盾在一定程度上已由多回路放电加工所解决,然而由于分割电极制造的困难和脉冲电源的复杂化,使得有些模具和零件采用多回路放电加工经济上不合算,甚至有时技术上还不可能。因此有必要提出在整体电极上实现多通道放电加工的设想。如果这一设想能够实现,则解决放电加工第二对基本矛盾就有了比多回路放电加工简化得多的技术方案。特别是低损耗放电精加工的出现,使得这对矛盾更为突出。客观上要求低损耗放电精加工表面光洁度提高到▽6～7甚至再高些,并
First, the question put EDM processing of the second pair of basic contradiction is the processing speed and surface finish of the conflict. Although this contradiction has to some extent been solved by the multi-loop EDM, however, due to the difficulty in manufacturing the split electrode and the complication of the pulse power, it is economically not economical for some molds and parts to adopt the multi-loop EDM, and sometimes technically Impossible. Therefore, it is necessary to propose the idea of multi-channel discharge machining on the whole electrode. If this idea can be achieved, there will be a much simpler solution than the multi-loop EDM to solve the second pair of basic contradictions in EDM. In particular, the emergence of low-loss discharge finishing, making this more prominent contradictions. Objectively require low-loss discharge finish surface finish improved to ▽ 6 to 7 or even higher, and