Study on Breakdown Probability of Multimaterial Electrodes in EDM

Table 2

Physical parameters of common metals [18].

Materials	Density (g/cm^3)	Specific heat capacity (J/(kg·°C))	Thermal conductivity (W/(mk))
Copper	8.93	386	381
Iron	7.87	444	80
Brass (Zn35)	8.50	377	118
Copper-tungsten alloy (W70)	14.10	207	220