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US 4,448,656 AGranted
Electrolytic/electric discharge machining of a non-conductive workpiece
AssigneeOhyo Jiki Labolatory Company Ltd.
InventorAkio Kuromatsu
Life of this patent
Estimating the term…
Abstract
The electrolytic/electric discharge machining of a workpiece of a non-conductive hard material, for example, ceramic material is carried out by preparing a grinding wheel having conductive regions and non-conductive abrasive regions circumferentially alternately arranged on the circumferential edge of the wheel, and bringing the rotating grinding wheel in contact with the workpiece while applying AC or DC voltage across the grinding wheel and the non-conductive workpiece.
Claims9
A method for the electrolytic/electric discharge machining of a non-conductive workpiece, comprising
- preparing a grinding wheel having conductive regions and non-conductive abrasive regions circumferentially alternately arranged at least on the circumferential edge of the wheel,
- placing a non-conductive workpiece beneath the surface of an electrolyte, and
- bringing the rotating grinding wheel in contact with said non-conductive workpiece while applying voltage between the conductive regions of said grinding wheel and said non-conductive workpiece.
Dependencies are inferred from the claim text.