Solid end mill
US12172223B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2020 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Sep 29, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23C5/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A solid end mill is rotatable around a central rotational axis and includes a cutting portion having a plurality flutes with peripheral cutting edges formed between associated rake surfaces and clearance surfaces. The peripheral cutting edge forms a convexly curved lobe cutting edge portion disposed along an axial front part of the cutting portion. A neck cutting edge portion is connected to the lobe cutting edge portion and is disposed along an axial intermediate part of the cutting portion. A shoulder cutting edge portion is connected to the neck cutting edge portion and is disposed along an axial rear part of the cutting portion. The peripheral cutting edge extends at a linear and constant axial inclination angle θ within the range 5°≤θ≤15°. The rake surface forms positive radial rake angles αL,N,S along the entire extension of the peripheral cutting edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.