IDiyas

For the Inventor, By the Inventor

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 10421129 B1

PDFFull Text
Date of Patent:
Sep. 24, 2019

Filed:

Jan. 20, 2016

Polycrystalline diamond body, cutting tool, wear-resistant tool, grinding tool, and method for producing polycrystalline diamond body

Applicant:

Sumitomo Electric Industries, Ltd., Osaka-shi, JP;

Inventors:

Yuh Ishida, Itami, JP;

Keiko Arimoto, Itami, JP;

Katsuko Yamamoto, Itami, JP;

Hitoshi Sumiya, Itami, JP;

Assignee:

Sumitomo Electric Industries, Ltd., Osaka-shi, JP;

Attorneys:

Baker Botts L.L.P.

Michael A. Sartori

Primary Examiner:

Pegah Parvini

Int. Cl.
CPC ...
B32B 27/20 (2006.01); B32B 27/14 (2006.01); B24D 3/00 (2006.01); B24D 18/00 (2006.01); C04B 35/52 (2006.01); C01B 32/25 (2017.01); B01J 3/06 (2006.01); C04B 35/528 (2006.01); C04B 35/645 (2006.01); B23B 27/20 (2006.01); B23B 27/14 (2006.01);
U.S. Cl.
CPC ...
B23B 27/20 (2013.01); B01J 3/065 (2013.01); B23B 27/14 (2013.01); B24D 3/00 (2013.01); B24D 18/0009 (2013.01); C01B 32/25 (2017.08); C04B 35/52 (2013.01); C04B 35/528 (2013.01); C04B 35/645 (2013.01); C01P 2002/74 (2013.01); C01P 2004/64 (2013.01); C01P 2006/21 (2013.01); C04B 2235/425 (2013.01); C04B 2235/427 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/656 (2013.01); C04B 2235/781 (2013.01); C04B 2235/96 (2013.01);
Abstract

A polycrystalline diamond body contains diamond particles, the diamond particles have a mean particle size of 50 nm or less, and a crack initiation load is 10 N or more as measured in a fracture strength test by pressing a diamond indenter D with a tip radius Dr of 50 μm against a surface of the polycrystalline diamond body at a load rate F of 100 N/min. Accordingly, a polycrystalline diamond body that is tough and has a small diamond particle size, a cutting tool, a wear-resistant tool, a grinding tool, and a method for producing the polycrystalline diamond body are provided.

Find Patent Forward Citations

Loading…