COATED TOOL AND CUTTING TOOL PROVIDED WITH SAME

Title:

COATED TOOL AND CUTTING TOOL PROVIDED WITH SAME

Document Type and Number:

WIPO Patent Application WO/2022/085429

Kind Code:

A1

Abstract:

The present disclosure provides a coated cutting tool (1) wherein the inner wall (17) of a through hole (15) in a base (3) has a bonded phase enrichment layer (19) in which the bonded phase content ratio is higher than in the base (3). The thickness T1 of the bonded phase enrichment layer (19) at the center part is greater than the thickness T2 of the bonded phase enrichment layer (19) at an end part of the inner wall (17). A coating layer (30) has a first layer (31) containing a titanium compound and a second layer (32) containing aluminum oxide. In a cross-section polished surface of the through hole (15), when the angle of inclination formed by the normal lines to {112} planes, which are the crystal planes of crystal grains of the first layer (31), with respect to the normal line to the surface of the first layer (31) is measured, in an inclination angle frequency distribution graph in which the measured inclination angles in the range of 0-45° are divided every 0.25°, the highest peak exists in the range of 0-10°, and the sum of frequencies in the range of 0-10° accounts for 45-60% of the total frequencies in the inclination angle frequency distribution graph.

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Inventors:

TANAKA AYANO (JP)
NOMIYAMA RYOMA (JP)

Application Number:

PCT/JP2021/036769

Publication Date:

April 28, 2022

Filing Date:

October 05, 2021

Export Citation:

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Assignee:

KYOCERA CORP (JP)

International Classes:

B23B27/14; B23B27/16; C23C16/36; C23C16/40

Domestic Patent References:

WO2020218241A1

2020-10-29

Foreign References:

JPS58199841A	1983-11-21
JP2008501539A	2008-01-24
DE29506825U1	1995-07-20
JP2012245581A	2012-12-13
JP2020146820A	2020-09-17
JP2009107059A	2009-05-21

Attorney, Agent or Firm:

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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