High toughness and high strength aluminum alloy casting

Details High toughness and high strength aluminum alloy casting High toughness and high strength aluminum alloy casting

1994-08-25

1997-01-21

Simmons, David A.

Metal treatment

Stock

Aluminum base

420542, 420544, 420546, 420547, 420553, C22C 2106

Patent

active

055956157

ABSTRACT:
A high toughness and high strength casting of an aluminum alloy, has comparatively thick portions with a thickness of 20 mm or more, 4-6% Si, 0.2-0.6% Mg, less than 0.15% Fe, not more than 0.4% Mn, by weight, residual aluminum and unavoidable impurities; Si(%).times.Mg(%) having a value of 1.2-2.8. In forming the casting, the aluminum alloy is under an atmosphere of more than atmospheric pressure during solidification and subsequently a T6 heat treatment is applied to casting.

REFERENCES:
patent: 2908566 (1959-10-01), Cron et al.

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