Description:
This article mainly discusses the mechanism of electrical erosion and the macro and micro appearance of electrical erosion failure tooth surface. By observing the similarity of the two groups of tooth surface morphology, we can determine the possibility of gear electrical erosion failure. Through the calculation of gear contact strength and anti scuffing ability, we can rule out the possibility of tooth scuffing and pitting. So we can identify that the failure form of gear is electrical erosion .Finally, according to the calculation of the content, we get some conclusions.