Patent ID: 9587298
Date: 2017-03-07
CPC Classifications: C22C,C22F

Claim:
1. A method comprising: (a) preparing an aluminum alloy body for post-solutionizing cold working, the aluminum alloy body comprising 3.25-6.0 wt. % magnesium and 2.5-5.0 wt. % zinc, where at least one of the magnesium and the zinc is the predominate alloying element of the aluminum alloy body other than aluminum, and wherein a ratio of wt. % Mg, to wt. % Zn is from 0.6 to 2.40; (b) after the preparing step, cold working the aluminum alloy body, wherein the cold working induces at least 25% cold work in the aluminum alloy body; (c) after the cold working step, thermally treating the aluminum alloy body, wherein the thermally treating step comprises: