Abstract
As the supply forme of machining energy are varied with the machining circuits, machining characteristics and optimum energy supply forme should be investigated in connexion with defference energy formes.
The present paper discribed the result of evaporation and molten depth on electrode which are calculated from the thermal conduction in many energy formes.
The following become clear after these investigations, the energy supply forme that were piled up another forme on the rectangle forme or slope control forme contributes to improving the thermal effect of electrode compared to the rectangle forme.
Futher to obtain better machining characteristics, it is consider that the condition should be combined to the effect of the impulse force.
