Methods for forming articles having apertures and articles having substantially reduced residual compressive stress
US7879402B2 · kind B2 · utility
0Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2007 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Dec 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/03
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for forming an aperture includes stamping an aperture into the article using a pellet, and refining aperture shape(s) and/or aperture dimensions. Methods for forming articles having reduced residual compressive stress are also disclosed. Very generally, the methods include establishing a diamond coating on at least a portion of a substrate, and applying a stress-relief process to the diamond coating, the substrate, or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.