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:
Mar. 14, 1989
Filed:
May. 05, 1988
Applicant:
Inventors:
Gerhard Brehm, Emmerting, DE;
Johann Niedermeier, Burghausen, DE;
Assignee:
Wacker Chemitronics GmbH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
125 / ; 125 / ; 125 / ; 51 / ;
Abstract
Cutting-off tools whose cutting edge has a cutting layer with a bonded cutting grain are sharpened by sawing momentarily into a solid sharpening substance, in which case, in addition to a relative movement between cutting edge and solid material corresponding to the sawing operation, an oscillating relative movement transversely thereto is also performed. The process is used with particular advantage in combination with processes for the centerhole sawing of semiconductor or oxidic material.