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.

Date of Patent:
Nov. 04, 2014

Filed:

Jul. 17, 2012
Applicant:

Prakash K. Mirchandani, Houston, TX (US);

Inventor:

Prakash K. Mirchandani, Houston, TX (US);

Assignee:

Kennametal Inc., Latrobe, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); B23B 51/02 (2006.01); C22C 29/06 (2006.01); C22C 1/05 (2006.01); B22F 7/06 (2006.01); B22F 5/00 (2006.01);
U.S. Cl.
CPC ...
C22C 1/051 (2013.01); C22C 29/06 (2013.01); B22F 7/062 (2013.01); B22F 2005/001 (2013.01);
Abstract

Composite articles, including composite rotary cutting tools and composite rotary cutting tool blanks, and methods of making the articles are disclosed. The composite article includes an elongate portion. The elongate portion includes a first region composed of a first cemented carbide, and a second region autogenously bonded to the first region and composed of a second cemented carbide. At least one of the first cemented carbide and the second cemented carbide is a hybrid cemented carbide that includes a cemented carbide dispersed phase and a cemented carbide continuous phase. At least one of the cemented carbide dispersed phase and the cemented carbide continuous phase includes at least 0.5 percent by weight of cubic carbide based on the weight of the phase including the cubic carbide.


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