| CPC C22F 1/043 (2013.01) [B21B 1/22 (2013.01); B21B 3/00 (2013.01); C22C 21/02 (2013.01); B21B 2001/225 (2013.01); B21B 2003/001 (2013.01)] | 10 Claims |
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1. A method of producing an aluminum alloy product, comprising:
casting an aluminum alloy to produce a cast aluminum alloy article, wherein the aluminum alloy comprises 0.5 to 2.0 wt. % Si, 0.1 to 0.4 wt. % Fe, up to 0.4 wt. % Cu, up to 0.5 wt. % Mg, 0.02 to 0.1 wt. % Mn, up to 0.02 wt. % Cr, up to 0.15 wt. % Ti, up to 0.1 wt. % Zn, up to 0.15 wt. % impurities, and Al;
homogenizing the cast aluminum alloy article to produce a homogenized cast aluminum alloy article;
hot rolling the homogenized cast aluminum article to produce a hot rolled product, wherein the exit temperature of the hot rolled product ranges from 200° C. to 290° C.;
cold rolling the hot rolled product in a first cold rolling step to produce a first cold rolled product having an intermediate gauge, wherein the first cold rolling step results in a thickness reduction from 25% to 70% from the hot rolled product to the first cold rolled product;
inter-annealing the first cold rolled product at an inter-annealing temperature from 300° C. to 450° C.; and
cold rolling the first cold rolled product in a second cold rolling step to produce a final gauge aluminum alloy product having a final gauge, wherein the second cold rolling step results in a thickness reduction from 40% to 70% from the intermediate gauge to the final gauge aluminum alloy product;
wherein the final gauge aluminum alloy product comprises a volume fraction of alpha fibers of at least 8%, a volume fraction of beta fibers of at least 6%, and a ratio of the volume fraction of the alpha fibers to the volume fraction of the beta fibers ranging from 0.5:1 to 2:1.
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