Aluminum alloy and method of making

Details Aluminum alloy and method of making Aluminum alloy and method of making

1992-09-23

1994-04-26

Dean, W.

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148695, 148696, 148697, 148700, 148417, 148439, 420534, 420538, C22F 104

Patent

active

053063627

ABSTRACT:
The invention provides an aluminum alloy material consisting essentially of, by weight percent, 1% to 1.8% Cu, 0.8% to 1.4% Mg, 0.2% to 0.39% Si, 0.5% to 0.4% Fe, 0.05% to 0.40% Mn, with the balance aluminum with normal impurities. The alloy forms two precipitation phases during heat treatment and age hardening: a beta phase of Mg.sub.2 Si and an S' phase of Al.sub.2 CuMg. The alloy has improved formability without significant sacrifice of strength, and is particularly suited to be formed into automobile sheet metal parts such as hood lids, trunks lids, and fenders.

REFERENCES:
patent: 4838958 (1989-06-01), Komatsubara et al.
patent: 4840852 (1989-06-01), Hyland
patent: 4909861 (1990-03-01), Muraoka
patent: 5061327 (1991-10-01), Denzer

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