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:
May. 21, 1991
Filed:
Apr. 11, 1990
Applicant:
Inventors:
David Moskowitz, Southfield, MI (US);
Reuven Porat, Nahariya, IL;
Assignee:
Iscar Ltd., Tefen, IL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 87 ; 501127 ;
Abstract
A composition for a ceramic cutting tool which enjoys long tool life at high speed machining of ferrous alloys. The composition consists essentially of 60-80% alpha aluminum oxide (Al.sub.2 O.sub.3) having a hexagonal crystal structure and the remainder of titanium carbonitride (TiCN). The titanium carbonitride has a mixture of 30-70% titanium carbide and the remainder titanium nitride. The mixture is compacted and hot pressed, sintered or pressure sintered to form the tool.