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:
Aug. 31, 1976
Filed:
Sep. 10, 1974
Applicant:
Inventors:
Jan Nils Lindstrom, Norsborg, SW;
Fall Johan Ohlsson, Enskede, SW;
Assignee:
Sandvik Aktiebolag, Sandviken, SW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B23P / ; B32B / ;
U.S. Cl.
CPC ...
29 9 / ; 3034654 ; 428212 ; 428213 ; 428334 ; 428336 ; 428410 ; 428428 ; 428539 ;
Abstract
The wear resistance and toughness of a cutting insert comprising a ceramic oxide is improved by applying to it a thin surface layer of ceramic oxide, deposited from a gaseous phase, in which surface layer the grains have a size smaller than 1 micron and preferably smaller than 0.5 micron. In effecting the deposition, at least one of the components of the gaseous phase is present therein in the highest concentration possible without formation of powder.