Title:
SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/037625
Kind Code:
A1
Abstract:
This surface coating cutting tool comprises a base material and a coating film formed on the base material. The coating film includes an α-Al2O3 layer. The α-Al2O3 layer contains multiple α-Al2O3 crystal grains and chlorine, and the TC (006) of the α-Al2O3 layer is greater than 5 in an orientation index TC (hkl). The α-Al2O3 layer includes a lower layer positioned, in the thickness direction thereof, at the base material side and an upper layer positioned at a side opposite to the base material side. The lower layer has a thickness of 1.0 μm and the upper layer has a thickness of 0.5 μm or larger. The chlorine has a concentration distribution in which the atom concentration CCl of the chlorine decreases, in the thickness direction of the lower layer, toward a direction away from the base material side.
Inventors:
YOSHIMURA KOUHEI (JP)
IMAMURA SHINYA (JP)
KANAOKA HIDEAKI (JP)
PASEUTH ANONGSACK (JP)
ONO SATOSHI (JP)
IMAMURA SHINYA (JP)
KANAOKA HIDEAKI (JP)
PASEUTH ANONGSACK (JP)
ONO SATOSHI (JP)
Application Number:
PCT/JP2017/016405
Publication Date:
March 01, 2018
Filing Date:
April 25, 2017
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/40
Foreign References:
| JP5872746B1 | 2016-03-01 | |||
| JP2011093003A | 2011-05-12 | |||
| JP2013129030A | 2013-07-04 | |||
| JP2014018886A | 2014-02-03 | |||
| JP2015009358A | 2015-01-19 | |||
| EP2570510A1 | 2013-03-20 | |||
| JP2013111722A | 2013-06-10 |
Other References:
See also references of EP 3308886A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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