Metallic housing forming method
US8904620B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Oct 1, 2012 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jul 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49968
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metallic housing forming method includes steps as follows: friction stir welding metallic members to form a metallic housing; immersing the metallic housing in an alkali solution to remove contaminants from the metallic housing, and forming a black salt layer on the metallic housing; stripping the black salt layer away from the metallic housing; electro-polishing the metallic housing to dissolve the outermost surface of the metallic housing; anode-oxiding the metallic housing; and sealing and drying the metallic housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.