Material: Mild steel;   Electrode: ETP Cu;  
Dielectric: EDM Oil;   Diameter of Electrode: 10 mm.  

Weight of electrode before machining (Eb)
(Range: 5-15gms) (gms)

Weight of work piece before machining (Wb)
(Range: 20-50gms)(gms)

Polarity :

Depth (mm):

1

Peak Current (A):

4

Voltage (V):

40

Pulse On Time(µs):

200

Pulse Off Time (µs):

50

Weight of electrode after machining (Ea) =

Weight of work piece after machining (Wa) =

Machining time(T) =

MRR = (Wb - Wa)/T (gm/min)

EWR = (Eb - Ea)/T (gm/min)