Title:
cBN SINTERED COMPACT AND CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2016/084738
Kind Code:
A1
Abstract:
Provided are a highly wear-resistant cBN sintered compact, and a highly wear-resistant cutting tool using the same. A cBN sintered compact 1 containing 50 vol% or more of cBN particles 2, and a bonded phase 4 including Co, bonded-phase intraparticles 8 including CoaWb (0 ≤ a ≤ 0.95, 0.05 ≤ b ≤ 1) being present in the bonded phase 4; and a cutting tool provided with a cBN tip 25 comprising a cBN sintered compact 1, or a cutting tool having a cutting insert 20 or the like that entirely comprises a cBN sintered compact 1. The wear resistance of the cBN sintered compact 1 and the cutting tool such as a cutting insert 20 is improved.
Inventors:
MATSUZAWA MASAHITO (JP)
Application Number:
PCT/JP2015/082695
Publication Date:
June 02, 2016
Filing Date:
November 20, 2015
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
C04B35/583; B23B27/14; B23B27/20; C22C19/07; C22C27/04; C22C29/16
Domestic Patent References:
| WO2011129422A1 | 2011-10-20 | |||
| WO2005066381A1 | 2005-07-21 |
Foreign References:
| JPH0499805A | 1992-03-31 | |||
| JPH0421738A | 1992-01-24 |
Other References:
YONGJUN LI ET AL.: "Study of high-pressure sintering behavior of cBN composites starting with cBN-Al mixtures", JOURNAL OF MATERIALS RESEARCH, vol. 23, no. Issue 09, September 2008 (2008-09-01), pages 2366 - 2372, ISSN: 0884-2914
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