A hard lubricous tunic and a hard lubricous tunic covering tool

Japanese Patent JP6168539

B2

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 an end mill (12) can be obtained by alternately forming two or more (CraMobWcVdBe)1-x-yCxNy layers A (22) and two or more (CraMobWcVdBe)1-x-y-zCxNyOz layers B (24) by controlling the composition ratios of Cr, Mo, W, V and B and various reaction gases during the film formation, or alternatively by controlling only the various reaction gases during the film formation. In this connection, the atomic ratios a-e, y and (x + y) of the layers A (22) are within predetermined ranges; the atomic ratios a-e, x, y, z and (x + y + z) of the layers B (24) are within predetermined ranges; the film thickness (D1) of the layers A (22) is within the range from 2 nm to 1,000 nm (inclusive); the film thickness (D2) of the layers B (24) is within the range from 2 nm to 500 nm (inclusive); and the total film thickness (D) is within the range from 0.1 µm to 10.0 µm (inclusive).

WO/2008/105519	CUTTING TOOL AND PROCESS FOR MANUFACTURING THE SAME
JP6617917	Surface coating cutting tool
JP4951958	Cermet for cutting tools

One May
Masatoshi Sakurai
Yuji Sudo
Junichi Koike

JP2015550243A

July 26, 2017

November 26, 2013

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OSG Co., Ltd.
Tohoku University

B23C5/16; B23B27/14; B23B51/00; B23G5/06; C23C14/06; C23C14/08

JP20101547A
JP2008240157A
JP2011256424A

WO2010150411A1
US20130134033

Haruyuki Ikeda
Kojiro Ikeda

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