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1. (WO2017061144) SURFACE-COATED CUTTING TOOL

Pub. No.:    WO/2017/061144    International Application No.:    PCT/JP2016/068421
Publication Date: Fri Apr 14 01:59:59 CEST 2017 International Filing Date: Wed Jun 22 01:59:59 CEST 2016
IPC: B23B 27/14
B23B 51/00
B23C 5/16
C23C 14/08
Applicants: SUMITOMO ELECTRIC HARDMETAL CORP.
住友電工ハードメタル株式会社
Inventors: KANAOKA, Hideaki
金岡 秀明
IMAMURA, Shinya
今村 晋也
PASEUTH, Anongsack
パサート アノンサック
DETANI, Takanori
出谷 隆典
Title: SURFACE-COATED CUTTING TOOL
Abstract:
This surface-coated cutting tool is provided with a base material, and a coating film formed on the base material, wherein: the coating film includes an α-Al2O3 layer; the α-Al2O3 layer includes a plurality of α-Al2O3 crystal particles and a plurality of k-Al2O3 crystal particles; TC (006) is greater than 5 in terms of orientation index TC (hkl); and the ratio [CK/(Cα+Ck)×100](%) of a total peak count Ck of the k-Al2O3 crystal particles obtained from measurement data of X-ray diffraction performed on the coating film with respect to the sum of the total peak count (CK) and a total peak count (Cα) of the α-Al2O3 crystal particles obtained from the measurement data is 0.05-7%.