Processing aluminum alloys

Details Processing aluminum alloys Processing aluminum alloys

C - Chemistry, Metallurgy

22

F

148/55.5

C22F 1/04 (2006.01) C22F 1/05 (2006.01)

Patent

CA 1074675

ABSTRACT OF THE DISCLOSURE A method of heat treating aluminum alloys of the aluminum- magnesium-silicon type to improve processibility by extrusion. The method comprises initially homogenizing the alloys at an elevated temperature below the equilibrium solidus temper- ature of the alloy for from 2 to 12 hours, further homogeni- zing 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°F at a rate of less than 100°F per hour.

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