Cutting element with interlocking feature
US5887580A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1998 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Mar 25, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B27/146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting element having a body which includes a grip portion from which extends a protrusion which is concentric to the grip portion. The diameter of the grip portion is larger than the diameter of the protrusion. Moreover, the upper portion of the protrusion has a larger diameter than the base of the protrusion. An ultra hard material cutting layer is formed on top of the protrusion and grip, covering and surrounding the protrusion resulting in a cutting layer that is mechanically interlocked with the body of the cutting element. A transition layer may be incorporated between the protrusion and the ultra hard material layer. The transition layer is preferably encapsulated by the ultra hard material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.