Processing aluminum alloys

Details Processing aluminum alloys Processing aluminum alloys

1975-10-20

1976-11-09

Stallard, W.

Metal treatment

Compositions

Heat treating

148 127A, 148 13, C22F 104

Patent

active

039909220

ABSTRACT:
A method of heat treating aluminum alloys of the aluminum magnesium-silicon type to improve processibility by extrusion which comprises initially homogenizing the alloys at an elevated temperature below the equilibrium solidus temperature of the alloy for from 2 to 12 hours, further homogenizing said alloys at an elevated temperature below the initial homogenization temperature and below the solvus temperature of the alloy for from 2 to 12 hours and slowly cooling said alloys to at least 800.degree. F at a rate of less than 100.degree. F per hour.

REFERENCES:
patent: 3379583 (1968-04-01), Gruhl et al.
patent: 3392062 (1968-07-01), Altenpohl et al.
patent: 3418177 (1968-12-01), Pryor
patent: 3762962 (1973-10-01), Nilsson
patent: 3816190 (1974-06-01), Warbichler

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