修理企业已广泛应用硬质粉末合金焊补磨损的零件,然而,用这种方法修复的零件,机械加工困难。特别是磨削熔剂层下堆焊的汽车发动机曲轴轴颈,就更困难。这些轴颈,由于硬度高,在修理生产中,砂轮磨耗量大,且磨削的生产率也很低。电化学“磨削”是提高硬质合金生产效率的有效方法之一。 Repair companies have extensive use of hard powder alloy welding wear parts, however, with this method to repair the parts, machining difficulties. In particular, it is even more difficult to grind a crankshaft journal of a car engine under flux layer. These journals, due to their high hardness, have a high amount of wear on the grinding wheel and low productivity in grinding. Electrochemical “grinding” is one of the effective methods to improve the production efficiency of cemented carbide.