Study on Breakdown Probability of Multimaterial Electrodes in EDM

Table 5

Processing parameters of multimaterial electrodes for EDM.

Items	Parameters
Workpiece material	Die steel
Multimaterial electrodes	Iron and copper; copper and copper-tungsten; brass and copper
Machining polarity	Normal
Thickness of workpiece (mm)	4
Pulse on time, Ton (s)	12.5
Pulse interval time, Toff (s)	7.5
Breakdown voltage, Ub (V)	45
Peak current, Ip (A)	0.8
Diameter of cylindrical electrode (mm)	2
Machining time, t (s)	3.0
Dielectric	Deionized water