ALUMINIUM ALLOY FOR PRODUCING SEMI-FINISHED PRODUCTS OR COMPONENTS FOR MOTOR VEHICLES, METHOD FOR PRODUCING AN ALUMINIUM ALLOY STRIP CONSISTING OF THIS ALUMINIUM ALLOY, AND AN ALUMINIUM ALLOY STRIP AND USE FOR SAME

摘要

The present invention relates to an aluminum alloy for manufacturing a semi-finished product or part for a vehicle, wherein the alloy components of the aluminum alloy are Fe ≦ 0.80%, Si ≦ 0.50%, 0.90% ≦ Mn ≦ 1.50%, Mg ≦ 0.25% 0.05%, V? 0.05%, Zr? 0.05%, the balance being aluminum, the inevitable impurity elements are individually less than 0.05%, the total amount is less than 0.15%, Mg and Cu Of the aluminum alloy satisfies the relationship of 0.15%? Mg + Cu? 0.25% by weight, and the Mg content of the aluminum alloy is larger than the Cu content of the aluminum alloy. The present invention also relates to a method for producing an aluminum alloy strip from such an aluminum alloy, comprising the steps of casting a rolling ingot from an aluminum alloy according to the invention, homogenizing the rolling ingot at 480 DEG C to 600 DEG C for at least 0.5 hour , Hot rolling the rolled ingot at 280 ° C to 500 ° C to form an aluminum alloy strip, cold rolling the aluminum alloy strip to a final thickness, and finally annealing the aluminum alloy strip for recrystallization. Further, the present invention relates to an aluminum alloy strip produced by the above method, the use of the aluminum alloy according to the present invention, and the metal sheet on which the aluminum alloy strip according to the present invention is produced.