Patent ID: 6336855
Filing Date: 2002-01-08
Classification: B24B

Abstract:
An ELID grinding wheel that is a conductive grinding wheel rotatingly centered on a vertical shaft center and including a horizontal working surface, the grinding wheel comprising:a conductive base member formed of an integrally molded flat plate; and a plurality of fan-shaped segments detachably attached to the base member to entirely constitute said working surface in an annular shape, each segment comprising a base metal directly attached to the base member and a grinding wheel part formed on the surface of the base metal, the grinding wheel part having a recessed groove for partitioning said working surface into a plurality of working areas and a respective electrolytic fluid supply hole for each working area for directly supplying an electrolytic fluid to the corresponding working area, so that electrolytic fluid is supplied to each working area through a respective electrolytic fluid supply hole.