Electro discharge piercing machine can process the smallest 0.15mm hole, the depth can only be processed 350mm, the finish can usually reach 0.8 microns, precision within 5 microns.
Electrode and metal discharge between the high temperature corrosion of the metal to achieve the purpose of perforation, for the processing of super-hard steel, cemented carbide, copper, aluminum and any conductive material fine holes. Minimum processing 0.015mm small holes, can also be processed with the taper of small holes.
Expanded Information:
Electro-discharge perforating machine processing is mainly used for mold and die production of holes and cavities processing, has become the dominant processing method of the mold and die manufacturing industry, and has pushed the Mold industry's technological progress. EDM processing parts in the number of 3000 pieces or less, than the mold stamping parts in the economy is more reasonable.
According to the process of tool and workpiece relative motion characteristics and different uses, EDM can be broadly divided into: EDM molding process, EDM wire cutting process, EDM grinding process, EDM exhibition processing, non-metallic EDM and EDM surface enhancement and so on.
Baidu Encyclopedia-Electrical Discharge Piercing Machine