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Title:
COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2014/200005
Kind Code:
A1
Abstract:
In order to provide a coated cutting tool that exhibits long tool-life and superior abrasion resistance and damage resistance, a coated cutting tool is provided in which: a base material and coating layers formed on a surface of the base material are included; at least one layer of the coating layers is a hard layer comprising a compound that is configured by at least one type of element selected from a group comprising of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Si, and Y, and at least one type of element selected from a group comprising of C, N, B, and O; and, when particle diameters in a cross-sectional structure of a hard-layer plane that is parallel to the surface of the base material is measured, hard-layer particles having a particle diameter of less than 1-300nm account for 10-80% of the surface area of the entire cross-sectional structure of the hard layer, hard-layer particles having a particle diameter of 300-1000nm account for 20-90% of the surface area of the entire cross-sectional structure of the hard layer, and in total these particles account for 100% of the surface area.

Inventors:
KIKUCHI MASAKAZU (JP)
SHIROCHI TSUKASA (JP)
Application Number:
PCT/JP2014/065415
Publication Date:
December 18, 2014
Filing Date:
June 11, 2014
Export Citation:
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Assignee:
TUNGALOY CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; C23C14/00
Foreign References:
JP2011218541A2011-11-04
JP2011224767A2011-11-10
JP2011224716A2011-11-10
JP2012166295A2012-09-06
JP2012020381A2012-02-02
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
Patent business corporation Tsukuni (JP)
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