Method of making aluminum foil or fin shock alloy product

Details Method of making aluminum foil or fin shock alloy product Method of making aluminum foil or fin shock alloy product

1986-03-12

1988-04-12

Rutledge, L. Dewayne

Metal treatment

Compositions

Heat treating

148 115A, 148437, 428606, C22F 104

Patent

active

047371986

ABSTRACT:
The present invention includes casting, e.g., such as by roll casting, or slab casting, an alloy having components in the composition range of about 0.5-1.2% iron, 0.7-1.3% manganese, and 0-0.5% silicon by weight, homogenizing the cast alloy at temperatures below about 1100.degree. F., preferably below about 1050.degree. F. to control the microstructure, and cold rolling to a final product gauge. Such a final product gauge for fin stock applications include thickness in the range of about 0.003-0.006 inch. The cold rolled alloy is then partially annealed to attain desired levels of strength and formability.

REFERENCES:
patent: 3397444 (1968-08-01), Bergmann et al.
patent: 3989548 (1976-11-01), Morris
patent: 4126487 (1978-11-01), Morris et al.
patent: 4334935 (1982-06-01), Morris
Nes, E. et al., "Casting and Annealing Structures in Strip Cast Aluminum Alloys", Aluminum, 55 Jahrg., 1979, 5, pp. 319-324.

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