Process for making diamond coated tools and wear parts
US5648119A · kind A · utility
32Cited by
19References
76Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | May 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A diamond-coated tool and a process for making them. The process includes a sintering step. In that step, a substrate is sintered in an atmosphere and for a time and at a temperature so that superficial, exaggerated grain growth is promoted that imparts a surface roughness which may serve as anchoring sites during a subsequent diamond coating step which is performed by a vapor deposition technique. The diamond-coated tool or wear part includes a large grain substrate surface, and a high bond strength between the diamond coating and the substrate surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.