Title:
SURFACE CUTTING TOOL WITH HARD COATING LAYER EXHIBITING EXCELLENT ANTI-CHIPPING PROPERTIES AND WEAR-RESISTANCE PROPERTIES
Document Type and Number:
WIPO Patent Application WO/2019/017201
Kind Code:
A1
Abstract:
Provided is a surface cutting tool that maintains excellent anti-chipping properties and wear-resistance properties over a long period of time even if used for, for example, high-speed intermittent cutting of an alloy steel and the like. This surface cutting tool is provided with a hard coating layer on a surface of a tool base body, wherein the surface cutting tool is characterized in that: (a) the hard coating layer contains at least a Ti/Al complex carboxynitride layer having an average layer thickness of 3.0-20.0 μm; (b) the Ti/Al complex carboxynitride layer includes crystal grains having an NaCl-type face-centered cubic structure; and (c) if the composition of the Ti/Al complex carboxynitride is represented by formula (Ti1-xAlx)(CyN1-y-zOz), then 0.60 ≤ x ≤ 0.95, 0.010 ≤ y ≤ 0.050, and 0.060 ≤ z ≤ 0.100 are satisfied.
Inventors:
SATO KENICHI (JP)
ISHIGAKI TAKUYA (JP)
YANAGISAWA KOUSUKE (JP)
NISHIDA SHIN (JP)
ISHIGAKI TAKUYA (JP)
YANAGISAWA KOUSUKE (JP)
NISHIDA SHIN (JP)
Application Number:
PCT/JP2018/025305
Publication Date:
January 24, 2019
Filing Date:
July 04, 2018
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23C5/16; C23C16/30; C23C16/40
Foreign References:
| JP2012071396A | 2012-04-12 | |||
| JPH0820871A | 1996-01-23 | |||
| JP2005256081A | 2005-09-22 | |||
| JP2009154248A | 2009-07-16 | |||
| JP2004106107A | 2004-04-08 | |||
| JP2003048104A | 2003-02-18 |
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