Aluminum alloy and method of making
US5306362A · kind A · utility
5Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Sep 23, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention provides an aluminum alloy material consisting essentially of, by weight percent, 1% to 1.8% Cu, 0.8% to 1.4% Mg, 0.2% to 0.39% Si, 0.5% to 0.4% Fe, 0.05% to 0.40% Mn, with the balance aluminum with normal impurities. The alloy forms two precipitation phases during heat treatment and age hardening: a beta phase of Mg.sub.2 Si and an S' phase of Al.sub.2 CuMg. The alloy has improved formability without significant sacrifice of strength, and is particularly suited to be formed into automobile sheet metal parts such as hood lids, trunks lids, and fenders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.