Patent ID: 6613167
Filing Date: 2003-09-02
Classification: C22F,Y10T

Abstract:
A process for producing a sheet or plate product comprising:(a) providing an aluminum alloy consisting essentially of 0.5 to 1.8% Si, 0.5 to 1.5% Mg, up to 1.2% Cu, balance essentially aluminum and incidental elements and impurities; (b) heating the alloy at a high temperature; (c) hot rolling the alloy to reduce its thickness by at least 30%; (d) thermally treating the alloy hot rolled in (c) at 1010Â° F. or more; (e) further hot rolling the alloy to further reduce its thickness; (f) solution heat treating the alloy at 1010Â° F. or higher; (g) quenching the alloy.