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1. (WO2018220910) SURFACE-COATED CUBIC BORON NITRIDE SINTERED BODY AND CUTTING TOOL PROVIDED WITH SAME

Pub. No.:    WO/2018/220910    International Application No.:    PCT/JP2018/006170
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Feb 22 00:59:59 CET 2018
IPC: C04B 35/5831
B23B 27/14
B23B 27/20
B23B 51/00
B23C 5/16
B23D 77/00
B23F 21/00
B23G 5/06
C04B 41/87
Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD.
住友電気工業株式会社
SUMITOMO ELECTRIC HARDMETAL CORP.
住友電工ハードメタル株式会社
Inventors: ARUMSKOG, Paer Christoffer
アルムスコーグ パール クリストッファー
UTSUMI, Yoshiharu
内海 慶春
TSUDA, Keiichi
津田 圭一
SETOYAMA, Makoto
瀬戸山 誠
TSUTSUMIUCHI, Yuki
堤内 勇貴
Title: SURFACE-COATED CUBIC BORON NITRIDE SINTERED BODY AND CUTTING TOOL PROVIDED WITH SAME
Abstract:
A surface-coated cubic boron nitride sintered body comprises a substrate, which is a cubic boron nitride sintered body, and a coating film that comes into contact with and covers the substrate. At the interface between the cubic boron nitride in the substrate and the coating film, the Fe content is 1 at% or less, the W content is 1 at% or less, and the O content is 2 at% or less.