Title:
CUTTING TOOL WITH HARD COATING FILM FORMED THEREON
Document Type and Number:
WIPO Patent Application WO/2021/125516
Kind Code:
A1
Abstract:
The present invention relates to a cutting tool consisting of a hard base material, such as cemented carbide, cermet, ceramic, and cubic boron nitride, and a hard coating film formed on the hard base material. In the cutting tool according to the present invention, the hard coating film, which is composed of a monolayer or multilayer structure, is formed on a base material, wherein the hard coating film comprises a layer composed of an oxide, wherein in the layer composed of an oxide, the oxygen content of an edge center of the cutting tool is higher than the oxygen content in an area distanced from the edge center by 50 µm or more.
Inventors:
GWON JIN-HAN (KR)
PARK JE-HUN (KR)
AHN SEUNG-SU (KR)
PARK JE-HUN (KR)
AHN SEUNG-SU (KR)
Application Number:
PCT/KR2020/013425
Publication Date:
June 24, 2021
Filing Date:
September 29, 2020
Export Citation:
Assignee:
KORLOY INC (KR)
International Classes:
C23C14/08; C23C14/32; C23C14/35; C23C28/04
Foreign References:
| JP2016187847A | 2016-11-04 | |||
| KR20190028503A | 2019-03-18 | |||
| KR20110078462A | 2011-07-07 | |||
| JPH09192906A | 1997-07-29 | |||
| US20120269589A1 | 2012-10-25 |
Attorney, Agent or Firm:
IAM PATENT FIRM (KR)
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