Cutting insert and tool holder on which cutting insert is provided
US10279401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2015 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Sep 12, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C2210/168
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Provided are a cutting insert and a tool holder on which the cutting insert is provided. The cutting insert includes a circular upper surface, a circular lower surface, a cylindrical lateral surface for connecting the upper surface and the lower surface, an upper cutting edge formed between the upper surface and the lateral surface, a lower cutting edge formed between the lower surface and the lateral surface, and a plurality of rotation-preventing parts provided at the lateral surface so as to prevent the cutting insert from rotating with respect to the tool holder. Each rotation preventing part includes an inner curved surface recessed toward the center of the lateral surface and convexly rounded so as to form concentric circles in conjunction with the lateral surface, and a stepped rotation-preventing surface parallel to the axial direction of the insert and connecting the inner curved surface and the lateral surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.