Title:
CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2020/213259
Kind Code:
A1
Abstract:
A cutting tool includes a rake face, a flank face, and a cutting edge part, wherein the cutting tool is provided with a substrate and an AlTiN layer. The AlTiN layer includes cubic AlxTi1-xN crystal grains, where an atomic ratio x of Al ranges from 0.7 to less than 0.95. The AlTiN layer includes a central part, and, in a color map, generated on the basis of a crystal orientation of the AlxTi1-xN crystal grains identified via electron backscatter diffraction analysis on a cross section of the AlTiN layer sectioned along a plane including a normal line to the rake face and a normal line to the flank face, a proportion of an area of the central part at the rake face with (111) plane orientated crystal grains ranges from 50% to less than 80%, and a proportion of an area of the central part at the cutting edge part with (111) plane orientated crystal grains is 80% or greater.
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Inventors:
KIDO YASUKI (JP)
PASEUTH ANONGSACK (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
PASEUTH ANONGSACK (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
Application Number:
PCT/JP2020/008143
Publication Date:
October 22, 2020
Filing Date:
February 27, 2020
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/34
Domestic Patent References:
| WO2018001784A1 | 2018-01-04 | |||
| WO2017179221A1 | 2017-10-19 |
Foreign References:
| JP2003117705A | 2003-04-23 | |||
| JP2018144138A | 2018-09-20 | |||
| JP2010094763A | 2010-04-30 | |||
| JP2016064485A | 2016-04-28 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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