End mill with throw-away tip
US4693641A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Dec 31, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8953
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An end mill comprises an end mill body and a throw-away tip mounted on a forward end of the end mill body so as to be spaced from an axis thereof. A core receiving recess is formed at a center of a forward end face of the end mill body and has a size equal to or greater than a distance between the throw-away tip and the axis of the end mill body. The throw-away tip has an end cutting edge formed by a cutting edge ridge located adjacent the forward end of the end mill body and extending from an outer peripheral side of the end mill body toward an inner peripheral side thereof, and outer and inner peripheral cutting edges respectively formed by cutting edge ridges respectively extending from outer and inner peripheral ends of the end cutting edge toward a rearward end of the end mill body. The end mill body may mount at least two throw-away tips disposed symmetrically with respect to the axis thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.