Cutting tool
US10525538B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 15, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2226/315
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting tool includes a shaft portion and a plurality of edge region groups. The ridgeline between the first rake face portion and the first flank face portion constitutes a first cutting edge portion. The ridgeline between the second rake face portion and the second flank face portion constitutes a second cutting edge portion. As seen from the direction perpendicular to a plane tangent to the outer peripheral surface, in a state where the central axis overlaps a first end on the front end side of the first cutting edge portion, the inclination angle of the first cutting edge portion relative to the central axis is larger than the inclination angle of a straight line relative to the central axis, the straight line connecting the first end to a second end on the front end side of the second cutting edge portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.