Composite polycrystalline cutting element with improved fracture and delamination resistance
US5355969A · kind A · utility
210Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1993 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Mar 22, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2226/315
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A cutting implement formed from a substrate of carbide, or other hard substance, bonded to a polycrystalline layer which serves as the cutting portion of the implement. The interface between the substrate and polycrystalline layer is defined by surface topography with radially spaced-apart protuberances and depressions forming smooth transitional surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.