电火花加工硬质合金材料、通常存在着电极损耗大和生产率低的问题。因此,为了减少电极的损耗,就转向寻求更好的电极材料,如利用铜钨合金、银钨合金等价格昂贵的金属材料做电极,可是即使采用了这样的合金,电极的损耗也没有完全降下来。因此如何能使电火花加工“硬质合金”时达到电极低损耗。这是一个很值得重视的问题。 EDM cemented carbide materials usually have the problem of large electrode loss and low productivity. Therefore, in order to reduce the loss of the electrode, it has turned to seek a better electrode material such as an expensive metal material such as a copper-tungsten alloy or a silver-tungsten alloy, but the electrode loss is not completely reduced even with such an alloy Down. So how to make the EDM “cemented carbide” to achieve the electrode low loss. This is a very worthwhile question.