HARD LUBRICATING COATING FILM AND HARD LUBRICATING COATING FILM-COVERED TOOL

WIPO Patent Application WO/2015/079587

A1

Provided are: a hard lubricating coating film which is hard and has wear resistance; and a hard lubricating coating film-covered tool. A hard coating film (10), which is hard and has wear resistance, and a drill (12) can be obtained by alternately forming and laminating two or more layers A (24) composed of a carboxide, oxynitride or oxycarbonitride of (CraMobWcVdBe)1-x-y-zCxNyOz and two or more layers B (25) composed of (Ti1-fSif)1-gNg. In this connection, the atomic ratios a-e, x, y, z and (x + y + z) of the layers A (24) are within predetermined ranges; the atomic ratio f of the layers B (25) satisfies 0 < f ≤ 0.4 and the atomic ratio g of the layers B (25) satisfies 0.4 ≤ g ≤ 0.6; the film thickness (D1) of the layers A (24) is within the range from 2 nm to 500 nm (inclusive); the film thickness (D2) of the layers B (25) is within the range from 1 nm to 500 nm (inclusive); and the total film thickness (D) is within the range from 0.1 μm to 10.0 μm (inclusive).

SUGITA HIROAKI (JP)
WANG MEI (JP)
SAKURAI MASATOSHI (JP)
SUTOU YUJI (JP)
KOIKE JUNICHI (JP)

PCT/JP2013/082284

June 04, 2015

November 29, 2013

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OSG CORP (JP)
UNIV TOHOKU NAT UNIV CORP (JP)
SUGITA HIROAKI (JP)
WANG MEI (JP)
SAKURAI MASATOSHI (JP)
SUTOU YUJI (JP)
KOIKE JUNICHI (JP)

B23B27/14; B23B51/00

WO2010150411A1	2010-12-29
WO2013140989A1	2013-09-26

JP2000326108A	2000-11-28
JP2008240157A	2008-10-09

IKEDA Haruyuki et al. (JP)
Haruyuki Ikeda (JP)

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