Superplastic multi-layer forming
US6547895B2 · kind B2 · utility
7Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jan 25, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S72/709
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The superplastic forming of suitable metal alloy sheets into strong components, such as automobile body structures or panels, is improved and accomplished faster by simultaneously forming two or more substantially identical, relatively thin sheets, preferably about 2 mm or less in thickness, rather than a single sheet of the same overall thickness. For example, two or more layers of thin AA5083 sheets can be stretched formed together at about 500° C. with greater deformation and elongation than a single sheet of comparable thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.