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. 04, 2017
Filed:
Nov. 29, 2013
Applicant:
Kyocera Corporation, Kyoto-shi, Kyoto, JP;
Inventor:
Takahiko Makino, Satsumasendai, JP;
Assignee:
KYOCERA CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); C22C 29/08 (2006.01); C22C 29/02 (2006.01); C22C 29/06 (2006.01); C23C 28/04 (2006.01); C23C 30/00 (2006.01); B22F 5/00 (2006.01); C04B 41/50 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); C22C 29/02 (2013.01); C22C 29/067 (2013.01); C22C 29/08 (2013.01); C23C 28/042 (2013.01); C23C 28/044 (2013.01); C23C 30/005 (2013.01); B22F 2005/001 (2013.01); B22F 2207/03 (2013.01); B23B 2222/28 (2013.01); B23B 2222/36 (2013.01); B23B 2222/88 (2013.01); B23B 2228/105 (2013.01); C04B 41/5098 (2013.01); C22C 2202/02 (2013.01);
Abstract
There is provided a cutting tool having high wear resistance and fracture resistance by reducing the occurrence of thermal cracking on a cutting edge even during a cutting process of a heat-resistant alloy in which the cutting edge reaches high temperatures. The cutting tool is made from a cemented carbide that is composed mainly of a WC phase and contains 11.5-12.5% by mass of Co and 0.2-0.6% by mass of Cr in terms of CrC. The WC phase has a mean particle size of 0.85-1.05 μm, an antimagnetic force (Hc) of 13.0-16.0 kA/m, and a Rockwell hardness (HRA) of 89.5-90.5.