| Patent application number | Description | Published |
|---|
| 20080283163 | Aluminum Alloy Products Having Improved Property Combinations and Method for Artificially Aging Same - Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt. % Zn, about 1.5 to about 2.00 wt. % Mg, about 1.75 to about 2.3 wt. % Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt. % Cr, the balance Al, incidental elements and impurities and a method for making same. The invention alloy is useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction. The invention alloy may be aged by 2 or 3 step practices while exceeding the SCC requirements for applications for which the invention alloy is primarily intended. The flexibility of the invention in this regard is useful for its application in multi-alloy or multi-material systems joined by welding or bonding and subsequently aged. | 11-20-2008 |
| 20090084474 | RECRYSTALLIZED ALUMINUM ALLOYS WITH BRASS TEXTURE AND METHODS OF MAKING THE SAME - A recrystallized aluminum alloy having brass texture and Goss texture, wherein the amount of brass texture exceeds the amount of Goss texture, and wherein the recrystallized aluminum alloy exhibits at least about the same tensile yield strength and fracture toughness as a compositionally equivalent unrecrystallized alloy of the same product form and of similar thickness and temper. | 04-02-2009 |
| 20100037998 | Aluminum alloy products having improved property combinations and method for artificially aging same - Aluminum alloy products about 4 inches thick or less that possesses the ability to achieve, when solution heat treated, quenched, and artificially aged, and in parts made from the products, an improved combination of strength, fracture toughness and corrosion resistance, the alloy consisting essentially of: about 6.8 to about 8.5 wt. % Zn, about 1.5 to about 2.00 wt. % Mg, about 1.75 to about 2.3 wt. % Cu; about 0.05 to about 0.3 wt. % Zr, less than about 0.1 wt. % Mn, less than about 0.05 wt. % Cr, the balance Al, incidental elements and impurities and a method for making same. The instantly disclosed alloys are useful in making structural members for commercial airplanes including, but not limited to, upper wing skins and stringers, spar caps, spar webs and ribs of either built-up or integral construction. | 02-18-2010 |
| 20110247730 | 2XXX SERIES ALUMINUM LITHIUM ALLOYS HAVING LOW STRENGTH DIFFERENTIAL - The present application discloses wrought 2xxx Al—Li alloy products that are work insensitive. The wrought aluminum alloy products generally include from about 2.75 wt. % to about 5.0 wt. % Cu, from about 0.2 wt. % to about 0.8 wt. % Mg, where the ratio of copper-to-magnesium ratio (Cu/Mg) in the aluminum alloy is in the range of from about 6.1 to about 17, from about 0.1 wt. % to 1.10 wt. % Li, from about 0.3 wt. % to about 2.0 wt. % Ag, from 0.50 wt. % to about 1.5 wt. % Zn, up to about 1.0 wt. % Mn, the balance being aluminum, optional incidental elements, and impurities. The wrought aluminum alloy products may realize a low strength differential and in a short aging time due to their work insensitive nature. | 10-13-2011 |
| 20120024433 | MULTI-ALLOY ASSEMBLY HAVING CORROSION RESISTANCE AND METHOD OF MAKING THE SAME - An assembly and method of making the assembly are provided. The assembly includes: a first 7xxx series aluminum alloy member comprising not greater than 1 wt. % Cu; a second 7xxx series aluminum alloy member comprising at least 1 wt % Cu; a joint between the first member and the second member that joins the first member to the second member; wherein the assembly comprises a stress corrosion cracking resistance for a marine environment. | 02-02-2012 |
