Process for forming an aluminum alloy thin sheet by hot and cold rolling
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United States of America Patent
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May 28, 1991
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N/A
app pub date -
Apr 20, 1990
filing date -
Apr 22, 1989
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Expired
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Abstract
Novel aluminum alloy composition and process for producing aluminum rolled semifinished strip material having a grain structure with grain diameters less than about 15 .mu.m, and having less than about 5 vol. % of rod shaped intermetallic phases. The present process comprises the steps of homogenizing rolling ingots of the present alloys, hot-rolling and then cold-rolling the ingots without intermediate annealing, and finally annealing the cold-rolled bars having a thickness between about 40 and 250 .mu.m.
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