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:
Jul. 05, 2005
Filed:
May. 17, 2004
Applicants:
Jenni Zackrisson, Fagersta, SE;
Jan Qvick, Virsbo, SE;
Inventors:
Jenni Zackrisson, Fagersta, SE;
Jan Qvick, Virsbo, SE;
Assignee:
Seco Tools AB, Fagersta, SE;
Primary Examiner:
Int. Cl.
CPC ...
C22C029/08 ;
U.S. Cl.
CPC ...
Abstract
A cutting tool insert has a cemented carbide substrate and a coating. The cemented carbide substrate includes 73-93 wt % WC, 4-12 wt % binder phase, and cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The cubic carbide phase includes elements from the groups IVB and VB, with the Ta content on a level corresponding to a technical impurity. Inserts according to the invention exhibit favorable edge strength and thermal shock resistance.