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AssigneeHydro Aluminium Rolled Products GmbH
InventorsHenk-Jan Brinkman, Dietmar Schröder, Thomas Wirtz, Natalie Hörster, Werner Kehl, Olaf Engler
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The invention relates to a strip consisting of an aluminum material for producing components with improved bending behavior and exacting shaping requirements, a method for producing the strip and the use of sheets produced from the strip according to the invention. The strip has a core layer of an AlMgSi alloy and at least one outer aluminum alloy layer arranged on one or both sides, made from a non-hardenable aluminum alloy, wherein the at least one outer aluminum layer has a lower tensile strength in the (T4) state than the AlMgSi layer, wherein the strip has a uniform strain (Ag) in the (T4) state of more than 23% transverse to the rolling direction and, at a thickness of 1.5 mm-1.6 mm, achieves a bending angle of less than 40° in a bending test.
Strip comprising an aluminium material for production of components with high forming requirements, wherein the strip comprises a core layer of an AlMgSi alloy and at least one external aluminium alloy layer arranged on one or both sides and made of a non-hardenable aluminium alloy, wherein the at least one external aluminium alloy layer has a lower tensile strength than the core layer of an AlMgSi alloy in state T4, and wherein in state T4, the strip has a uniform elongation Ag of more than 23% transverse to the rolling direction and with a thickness of 1.5 mm to 1.6 mm, a bend angle of less than 40° is achieved in a bending test transverse to the rolling direction and the at least one external aluminium alloy layer consists of an aluminium alloy type AA8xxx, AA8079 or A1200.
Dependencies are inferred from the claim text.