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:
Oct. 31, 2006
Filed:
Aug. 26, 2004
Applicants:
Susanne Norgren, Huddinge, SE;
BO Jansson, Hägersten, SE;
Peter Littecke, Huddinge, SE;
Inventors:
Assignee:
Sandvik Intellectual Property AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 29/08 (2006.01); B22F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a cutting tool insert for metal machining comprising tungsten carbide in a binder phase of tungsten or a tungsten alloy. The insert contains, in addition, WC in an amount such that in the x-ray diffraction pattern the peak ratio WC(101)/W(110) is <0.3. This particular microstructure is obtained by an additional heat treatment at about 1200° C. after the sintering.