Title:
CUTTING INSERT AND CUTTING TOOL ON WHICH SAME IS MOUNTED
Document Type and Number:
WIPO Patent Application WO/2023/120868
Kind Code:
A1
Abstract:
A cutting insert of the present invention comprises four rectangular upper surfaces extending between two opposing side surfaces, and cutting edge portions formed where the side surfaces and the upper surface are connected to each other. The cutting edge portions comprise a second main cutting edge formed on the long sides of the upper surfaces and a first main cutting edge connected to the second main cutting edge at an angle. The side surfaces comprise a second main cutting edge clearance surface extending from a side flat surface and connected to the second main cutting edge and a first main cutting edge clearance surface extending from the side flat surface and connected to the first main cutting edge. When viewed from the upper surfaces, an angle formed by an extension line of the first main cutting edge and an extension line of the side flat surface is greater than or equal to an angle formed by an extension line of a boundary line of the first main cutting edge clearance surface and an extension line of the side flat surface.
Inventors:
LEE NAM SEON (KR)
OH MIN SEOK (KR)
KIM YOUNG HEUM (KR)
OH MIN SEOK (KR)
KIM YOUNG HEUM (KR)
Application Number:
PCT/KR2022/013500
Publication Date:
June 29, 2023
Filing Date:
September 08, 2022
Export Citation:
Assignee:
KORLOY INC (KR)
International Classes:
B23C5/20; B23B27/16
Domestic Patent References:
| WO2021085826A1 | 2021-05-06 |
Foreign References:
| KR20140004149A | 2014-01-10 | |||
| KR20210141534A | 2021-11-23 | |||
| KR102144905B1 | 2020-08-14 | |||
| KR101720377B1 | 2017-03-27 |
Attorney, Agent or Firm:
MI PATENT AND LAW FIRM (KR)
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