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:
Apr. 09, 2013
Filed:
Apr. 23, 2007
Nedret Can, Boksburg, ZA;
Guven Akdogan, Johannesburg, ZA;
Peter Michael Harden, Limerick, IE;
Cornelius Johannes Pretorius, Sixmilebridge, IE;
Nedret Can, Boksburg, ZA;
Guven Akdogan, Johannesburg, ZA;
Peter Michael Harden, Limerick, IE;
Cornelius Johannes Pretorius, Sixmilebridge, IE;
Element Six Abrasives S.A., Luxembourg, LU;
Abstract
The invention provides a tool component comprising a first layer of polycrystalline cBN material which has a rake (working) surface and a flank surface and comprises less than 70 vol % cBN; and a secondary layer across the rake surface or at least partially across the rake surface and comprising a refractory material and optionally a binder phase and optionally cBN, wherein the secondary layer has a higher resistance to crater formation than the first layer of cBN material and has a lower affinity towards iron than cBN.