Aluminum alloy sheet with good forming workability and method for manufacturing same
US4753685A · kind A · utility
23Cited by
2References
8Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 23, 1984 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Feb 23, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/047
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein are: (1) a formable bake-hardening type aluminum alloy sheet, containing 0.2-0.7 wt % of Fe, 0.05-0.5 wt % of Cu, 0.5-2.5 wt % of Mg, 0.5-2.0 wt % of Mn and optionally 0.05-1 wt % of Zn under the condition of Fe wt % +(Mn wt %.times.1.07)+(Mg wt %.times.0.27).ltoreq.3.0, and intermetallic compounds of less than 45 microns in size and an areal rate of 0.5-5% as observed from the surface of a rolled sheet and an average crystal grain width smaller than 25 microns; and (2) a method for producing such bake-hardening type aluminum alloy sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.