The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2003
Filed:
Jul. 21, 2000
Hitoshi Ohmori, Wako, JP;
Nobuhide Itoh, Hitachi, JP;
Riken, , JP;
Abstract
An ELID centerless grinding apparatus comprising: a blade for horizontally supporting a rotator workpiece and and a regulating wheel driven to rotate around a horizontal shaft center. An outer surface of the workpiece is subjected to ELID grinding by using a conductive grinding wheel . An outer peripheral portion of the wheel includes a conductive elastic member and abrasion resisting particles . An electrolytic electrode is provided in close vicinity to an outer peripheral surface of the wheel . An electrolytic power supply applies an electrolytic voltage between the electrolytic electrode and the wheel. A conductive electrolytic fluid is flow between the electrode and the wheel and the member is removed by the electrolytic dressing to cause the abrasion resisting particles to project, while the particles are brought into contact with the outer peripheral surface of the workpiece to rotate around its shaft center. Consequently, the coefficient of friction of the outer peripheral surface shape of the regulating wheel with respect to the workpiece can be maintained more or less constant during the grinding process of the workpiece.