SINTERED BODY AND CUTTING TOOL CONTAINING SAME - SUMITOMO ELECTRIC HARDMETAL CORP

Title:

SINTERED BODY AND CUTTING TOOL CONTAINING SAME

Document Type and Number:

WIPO Patent Application WO/2018/092369

Kind Code:

A1

Abstract:

This sintered body contains cubic boron nitride particles and a binder. The particle size D50 of the cubic boron nitride particles, at which the cumulative value is 50% in an area-based particle size distribution, is more than 0.5 μm but not more than 5 μm. The contained amount of the cubic boron nitride particles in the sintered body is 70-98 vol%. The binder contains Al1-xCrxN (where x satisfies 0≤x≤1), and the remaining portion is at least a first element or a compound containing the first element and a second element. The first element is one or more elements selected from the group consisting of W, Co, Ni, Mo, Al, and Cr. The second element is one or more elements selected from the group consisting of nitrogen, carbon, oxygen, and boron.

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Inventors:

TAKAHAMA KAZUSHI (JP)
MATSUDA YUSUKE (JP)
KUKINO SATORU (JP)

Application Number:

PCT/JP2017/029504

Publication Date:

May 24, 2018

Filing Date:

August 17, 2017

Export Citation:

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Assignee:

SUMITOMO ELECTRIC HARDMETAL CORP (JP)

International Classes:

B23B27/14; C04B35/5831; B23B27/20; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06

Domestic Patent References:

WO2016052497A1	2016-04-07
WO2016021581A1	2016-02-11

Foreign References:

JP2006315898A	2006-11-24
JP2016074550A	2016-05-12
JP2006315898A	2006-11-24

Other References: