Ball nose end mill and a cutting insert for the ball nose end mill
US6149355A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1997 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Oct 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/235
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ball nose end mill includes two identical cutting inserts which are clamped into two dissimilar insert seats. Each one of the two insert seats includes a narrower end and a wider end, the narrower end of one insert seat being located at the tip of the end mill, while the narrower end of the other insert seat is located at the end of the insert seat distal to the tip of the end mill. The inserts are correspondingly shaped with a wider end a narrower end, the ends being curved, and with rectilinear longitudinal sides. The inserts may be inclined axially negatively. The ball nose end mill permits two identical inserts to be used, permits large cutting depths to be obtained, and a negative axial inclination permits an impact point that is distanced from the tool tip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.