A few nice electrical discharge China machining edm images I found:
Charmilles’ Robofil 240SL
Image by Siddhant Ahuja
Charmilles’ Robofil 240SL Electrical Discharge China Machine (EDM), MAME Laboratory, University of Windsor, Ontario
P1030437
Image by Siddhant Ahuja
Charmilles’ Robofil 240SL Electrical Discharge China Machine (EDM), MAME Laboratory, University of Windsor, Ontario