Patent · US Active

Clad 2XXX-series aerospace product

US11879167B2 · kind B2 · utility

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18Claims

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Assignee

NOVELIS KOBLENZ GMBH · DE

Inventors

Aleksandar Lozanov Davidkov · Aachen, DE
Achim Bürger · Grevesmühlen, DE
Sabine Maria Spangel · Koblenz, DE
Philippe Meyer · Koblenz, DE

Key dates

Filing date	Jul 27, 2020
Grant date	Jan 23, 2024
Priority date	—
Expiry date	Jul 27, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC22F1/057
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to a rolled composite aerospace product comprising a 2XXX-series core layer and a 6XXX-series aluminium alloy clad layer coupled to at least one surface of the 2XXX-series core layer, wherein the 6XXX-series aluminium alloy comprises, in wt. %, Si 0.3% to 1.0%, Mg 0.3% to 1.1%, Mn 0.04% to 1.0%, Fe 0.03% to 0.4%, Cu up to 0.10%, Cr up to 0.25%, V up to 0.2%, Zr up to 0.2%, Zn up to 0.5%, Ti up to 0.15%, unavoidable impurities each <0.05%, total <0.15%, balance aluminium. The invention further relates to a method of manufacturing such a rolled composite aerospace product.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.