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:
Feb. 23, 1993
Filed:
May. 31, 1991
Applicant:
Inventors:
Anakkavur T Santhanam, Monroeville, PA (US);
Rajendra V Godse, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C / ; B23B / ;
U.S. Cl.
CPC ...
407119 ; 51295 ; 427249 ;
Abstract
A coated indexable cutting insert for wet and dry milling of cast irons is provided. The substrate of the insert is composed of a cemented tungsten carbide based composition containing about 5.7 to about 6.4 weight percent cobalt and about 2.9 to about 3.6 weight percent tantalum. The coating includes two coatings of differing composition. The first coating is selected from titanium carbide, titanium carbonitride, and titanium nitride. The second coating is alumina.