Title:
SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/035854
Kind Code:
A1
Abstract:
This surface-coated cutting tool is formed by vapor deposition of a hard coating layer on the surface of a tool substrate configured from a tungsten carbide-base superhard alloy. The hard coating layer comprises at least one (Ti1-xAlx)N layer with an average layer thickness of 0.5-10µm (0.4 ≤ X ≤ 0.7 (wherein X is an atomic ratio)), the aforementioned (Ti, Al)N layer has a cubic crystal structure and, defining Ia (%) as the average absorptance value of the hard coating layer at wavelengths of 400-500nm and Ib (%) as the average absorptance value at wavelengths of 600-700nm, the relation holds that Ia-Ib < 5.
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Inventors:
KIMURA TAKASHI (JP)
TAKAHASHI MASAKUNI (JP)
SENBOKUYA KAZUAKI (JP)
HASHIMOTO TATSUO (JP)
TAKAHASHI MASAKUNI (JP)
SENBOKUYA KAZUAKI (JP)
HASHIMOTO TATSUO (JP)
Application Number:
PCT/JP2015/075072
Publication Date:
March 10, 2016
Filing Date:
September 03, 2015
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23P15/28; C23C14/06; C23C14/14; C23C14/24; C23C14/32
Domestic Patent References:
| WO2014157688A1 | 2014-10-02 |
Foreign References:
| JP2008264890A | 2008-11-06 | |||
| JPH07243047A | 1995-09-19 | |||
| JP2013023741A | 2013-02-04 | |||
| US20140169891A1 | 2014-06-19 |
Other References:
See also references of EP 3189916A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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