Product made of an AlCuMg alloy for aircraft structural elements
US6602361B2 · kind B2 · utility
11Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Rolled product for use in the manufacture of aircraft structural elements, made of an AlCuMg alloy processed by solution heat treatment, quenching and cold stretching. The product has a composition consisting essentially of, in % by weight: Fe<0.15; Si<0.15; Cu:3.8-4.4; Mg:1-1.5; Mn:0.5-0.8; Zr:0.08-0.15; other elements: <0.05 each and <0.15 total. This product has a thickness of between 6 and 60 mm, with an ultimate tensile strength Rm(L) in the quenched and stretched temper >475 MPa and yield stress R0.2(L)>370 MPa, with a ratio Rm(L)/R0.2(L)>1.25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.