Abstract:Cutting edge passivation of cemented carbide tool using electrolysis mechanical complex machining methods can improve the tool edge passivation uniformity. Study was focused on the complex electrochemical mechanical machining edge passivation process, and through the electrolysis voltage, electrolytic gap, feed rate, and power frequency test parameters for orthogonal test, parameters were found for optimum passivation process. Tests show electrolysis gap is the biggest factor of impact on edge removal amount, followed by electrolysis voltage. The optimal combination of process parameters is: electrolysis voltage of 12 V, the amount of feed is 6mm/min, power frequency is 6 kHz and electrolysis gap is 0.3 mm.