Cutting insert
US11344958B2 · kind B2 · utility
0Cited by
14References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 2020 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Sep 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2200/366
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting insert which is excellent in both cutting edge strength and chip evacuation is provided. A corner edge of the cutting insert is formed in an arc shape. In a direction perpendicular to a rotation axis of a body, a width of the corner edge is 40% or more and 50% or less of a width of the cutting insert. An upper surface has a negative land which is formed along a cutting edge and has a negative angle. The angle of the negative land increases from one end, which is connected to an inner cutting edge, of both ends of the corner edge toward the other end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.