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spark erosion 火花電蝕法[金屬加工之一種電化學方法]。

spark gap

In recent years , electric - discharge machining , including spark erosion with traveling wire electrodes , has become a very important method of machine operations for heat treated steel without sulfur 近年來,放電加工,包括線切割加工己成為無硫鋼經熱處理后的一種很重要的加工方法

Effects of pulse and direct current on the microstructure and the spark erosion resistance of electrochemical deposit layer as edm tool were investigated 結果表明,采用脈沖電流可以使電沉積層的某些性能得到改善。