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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.:

US 9028575 B1

PDFFull Text
Date of Patent:
May. 12, 2015

Filed:

Sep. 08, 2011

Edm cuttable, high cbn content solid pcbn compact

Applicants:

Yahua Bao, Orem, UT (US);

Scott Horman, Lindon, UT (US);

Xian Yao, Sandy, UT (US);

Qingyuan Liu, Orem, UT (US);

Inventors:

Yahua Bao, Orem, UT (US);

Scott Horman, Lindon, UT (US);

Xian Yao, Sandy, UT (US);

Qingyuan Liu, Orem, UT (US);

Assignee:

Element Six Limited, , IE;

Attorney:

Bryan Cave LLP

Primary Examiner:

Kaj K Olsen

Assistant Examiner:

Ross J Christie

Int. Cl.
CPC ...
B24D 3/02 (2006.01); C09C 1/68 (2006.01); C09K 3/14 (2006.01); B24D 3/06 (2006.01); B01J 3/06 (2006.01); C04B 35/645 (2006.01); C04B 35/5831 (2006.01); B23H 7/02 (2006.01); C04B 35/63 (2006.01);
U.S. Cl.
CPC ...
B24D 3/06 (2013.01); B01J 3/062 (2013.01); B01J 2203/066 (2013.01); B23B 2222/14 (2013.01); B23B 2222/41 (2013.01); B23B 2226/125 (2013.01); C04B 35/645 (2013.01); C04B 35/5831 (2013.01); C04B 2235/3817 (2013.01); C04B 2235/3843 (2013.01); C04B 2235/3847 (2013.01); C04B 2235/3865 (2013.01); C04B 2235/3886 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5463 (2013.01); B23H 7/02 (2013.01); C04B 35/6303 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3813 (2013.01); C04B 2235/3856 (2013.01); C04B 2235/723 (2013.01); C04B 2235/80 (2013.01); C04B 2235/95 (2013.01);
Abstract

The present disclosure relates to cubic boron nitride (cBN) cutting elements that have high cBN content and that are cuttable by electric discharge machining (EDM). A cutting element according to an embodiment includes a self-sintered polycrystalline cubic boron nitride (PCBN) compact, having a first phase of cubic boron nitride (cBN) particles and a ceramic binder phase with titanium compounds. The first phase occupies greater than 80% by volume of the self-sintered PCBN compact. The self-sintered PCBN compact has an electrical conductivity sufficient to be cuttable by electrical discharge machining.

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