Method and device for performing electrical discharge machining on a material that does not conduct electricity

摘要

The method involves arranging a processing electrode (3) in a fluid or gaseous dielectric material above a processing area (15) of a ceramic material (6) in a distanced manner, where the processing electrode is made of zirconium-dioxide. Electrical voltage is applied to the processing electrode and the ceramic material. The ceramic material in the processing area is heated to certain temperature, at which the ceramic material electrically conducts, where the ceramic material is heated in an oven. An independent claim is also included for a device for spark erosion processing of the ceramic material.