Al-Si-Mg-Zn-Cu alloy for aerospace and automotive castings

Details Al-Si-Mg-Zn-Cu alloy for aerospace and automotive castings Al-Si-Mg-Zn-Cu alloy for aerospace and automotive castings

2005-07-28

2009-12-01

King, Roy (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

C148S698000, C148S417000, C420S532000, C420S548000

Reexamination Certificate

active

07625454

ABSTRACT:
The present invention provides an aluminum casting alloy with a composition including 4%-9% Si; 0.1%-0.7% Mg; less than or equal to 5% Zn; less than 0.15% Fe; less than 4% Cu; less than 0.3% Mn; less than 0.05% B; less than 0.15% Ti; and the remainder consisting essentially of aluminum. The inventive AlSiMg composition provides increased mechanical properties (Tensile Yield Strength and Ultimate Tensile Strength) in comparison to similiarly prepared E357 alloy at room temperature and high temperature. The present invention also includes a shaped casting formed from the inventive composition and a method of forming a shaped casting from the inventive composition.

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patent: 2005/0161128 (2005-07-01), DasGupta
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Japanese Translation for International Application No. JP 2007-523726, based on corresponding PCT application No. PCT/US2005/026478, filed Mar. 26, 2007.
Mexican National Phase Application No. MX/a/2007/001008 filed on Jan. 25, 2007, based on corresponding PCT application No. PCT/US2005/026478.
Norwegian National Phase Application No. NO20071075, filed on Feb. 26, 2007 based on corresponding PCT application No. PCT/US2005/026478.

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