Cutting tool having cylindrical ceramic insert
US4552491A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1980 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Jun 23, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ceramic insert for a tool holder is in the shape of a tapered cylinder wherein the diameter increases outwardly along the insert length, from a first end to a second end. The second or upper end of the insert has a bevel around its circumference; the intersection of the bevel and tapered sidewall of the cylinder provide a cutting edge which has a negative rake and relief angle which are desirably constant around the insert. Thus the insert may be mounted on a neutral plane in a tool holder and a tool will cut equally well in any direction along a 180.degree. arc. Various engagement and clamping means are used to hold the insert in place in the tool holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.