Title:
HARD COATING AND MEMBER COATED WITH HARD COATING
Document Type and Number:
WIPO Patent Application WO/2020/026392
Kind Code:
A1
Abstract:
In the present invention, two types of nanolayer alternating layers 38, 40, in which an A-layer 32 as a single-composition layer of one of an A-composition (AlCrSi α nitride), a B-composition (AlTiSi β nitride), and a C-composition (AlCr(SiC) γ nitride), and two of an A-composition, a B-composition, and a C-composition nanolayer layer (nanolayer A layer 32n, nanolayer B-layer 34n, nanolayer C-layer 36n) are alternately layered, are alternately layered in a predetermined film thickness, whereby such characteristics as excellent durability even in cutting of a titanium alloy, for example, are obtained, and excellent wear resistance, toughness, lubricity, and welding resistance are obtained. Cracking or separation of the hard coating is thereby suppressed by high toughness in cutting of titanium alloy, as well as carbon steel, stainless steel, cast iron, and alloy steel, for example, and various other materials to be cut, or in high-speed machining, dry machining, and other harsh machining conditions, and an increase in service life of a tool can be realized.
Inventors:
WANG MEI (JP)
Application Number:
PCT/JP2018/028941
Publication Date:
February 06, 2020
Filing Date:
August 01, 2018
Export Citation:
Assignee:
OSG CORP (JP)
International Classes:
C23C14/06; C23C28/04
Foreign References:
| JP2006137982A | 2006-06-01 | |||
| JP2009263717A | 2009-11-12 | |||
| JP2000017423A | 2000-01-18 |
Attorney, Agent or Firm:
IKEDA Haruyuki et al. (JP)
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