Cutting insert
US10195672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2015 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Dec 25, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2200/369
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Inclined surfaces are formed on a rake face and a recessed groove is formed in the central portion between the inclined surfaces. A groove width of the recessed groove gradually increases from the position of the end cutting edge toward the rear, then gradually decreases such that the recessed groove has a narrowest portion at a position P2 forward of the position P3 of an upper end of a breaker wall and rearward of a positive rake angle rear end position P1, and then gradually increases toward the rear up to the position P3 of the upper end of the breaker wall. The dimensional relation W1<W2<W3 holds, where W1 is the groove width at the end cutting edge, W2 is the groove width at the narrowest portion, and W3 is the groove width at the position P3 of the upper end of the breaker wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.