Electric discharge device for creating hole through workpiece

摘要

The device consists of a discharge electrode (10) with a free end; an arc voltage charging device coupled operatively to the discharge electrode; a control mechanism (13) for moving the discharge electrode to the workpiece (5) and back; a supply device for a processing fluid arranged to supply it under pressure to the free end of the discharge electrode; and a device to maintain the pressure of the processing fluid that contains a support device (14).