Modified surfaces using friction stir processing
US8220693B2 · kind B2 · utility
11Cited by
10References
10Claims
0Family size
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Key dates
| Filing date | Nov 9, 2009 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Jul 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A procedure for incorporating particles to a predetermined depth in a body to develop a composite surface layer using friction stir processing is described. The process comprises; preparing the surface of the body; applying particulate matter to the prepared surface; selecting a friction stir tool with a pin length substantially equal to the desired composite layer thickness; using a friction stir process to frictionally heat, stir and intermix the particulate matter with the matrix of the article; and traversing the friction stir tool across the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.