Process and apparatus for electric discharge machining

摘要

The method of spark erosion machining involves generating current pulses (Ig) of rectangular wavveform with an current increase period, an intermediate current plateau (Prl) and a current decay period (Pf). Each pulse is part of a cycle (p) with a charge duration (pc) and a waiting duration (Pd), for part of which a damping voltage is only applied and for part of which follows after a pause. the increase and intermediate periods are variable. Claims include a machine using the method