Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1990-11-13
1993-03-09
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148692, 148693, 148697, 148700, 148417, 148439, 206139, C22F 104
Patent
active
051923785
ABSTRACT:
Disclosed is a method for making an aluminum alloy sheet having controlled levels of strength properties for forming into a container panel. A body of an aluminum alloy consisting essentially of 0.45 to 0.60 wt. % Cu, 1.1 to 1.7 wt. % Mg, 0.3 to 0.6 wt. % Si, 0.3 to 0.55 wt. % Fe, 0.5 to 1.2 wt. % Mn, the remainder aluminum, incidental elements and impurities, is hot rolled to a gauge in the range of 0.12 to 0.16 inch to provide a hot rolled product. The hot rolled product is cold rolled to provide a reduction of 50 to 80% in thickness, then solution heat treated in a range of 850.degree. to 110.degree. F. and rapidly cooled before cold rollign to a final sheet gauge by providing a reduction of 30 to 90% in thickness.
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Doherty Roger D.
Liu John
Sanders, Jr. Robert E.
Alexander Andrew
Aluminum Company of America
Koehler Robert R.
Pearce-Smith David W.
Sheehan John P.
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