Title:
SURFACE COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2017/142058
Kind Code:
A1
Abstract:
A surface coated cutting tool with a hard coating layer formed on a tool base body surface thereof, wherein the hard coating layer includes a Ti compound layer, said Ti compound layer having a total average layer thickness of 2-15μm and comprising one or more layers selected from a TiC layer, a TiN layer, a TiCN layer, a TiCO layer, and a TiCNO layer, at least one of said layer(s) being a TiCN layer; at least one of the TiCN layer(s) in the Ti compound layer demonstrates a maximum diffraction peak intensity at the (200) plane during X-ray diffraction and has an orientation index Tc(200) of 2.0 or greater; and in the Ti compound layer, crystal grains that have a columnar, vertically elongated structure with an aspect ratio of 5 or greater preferably occupy 70% or more of the area of a vertical cross-section of the Ti compound layer.
Inventors:
OKUDE MASAKI (JP)
NISHIDA SHIN (JP)
TATSUOKA SHO (JP)
SATO KENICHI (JP)
YANAGISAWA KOUSUKE (JP)
NISHIDA SHIN (JP)
TATSUOKA SHO (JP)
SATO KENICHI (JP)
YANAGISAWA KOUSUKE (JP)
Application Number:
PCT/JP2017/005848
Publication Date:
August 24, 2017
Filing Date:
February 17, 2017
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; C23C16/30; C23C16/32; C23C16/34; C23C16/36
Domestic Patent References:
| WO2012144088A1 | 2012-10-26 | |||
| WO2014142190A1 | 2014-09-18 | |||
| WO2014198881A1 | 2014-12-18 |
Foreign References:
| JPH0847999A | 1996-02-20 | |||
| JP2015500148A | 2015-01-05 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
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