Metal treatment – Compositions – Heat treating
148437, 148438, 148439, 148440, C22F 104
There is provided a method of fabricating sheet stock having reduced earing during container forming. The method comprises the steps of providing a body of an aluminum base alloy suitable for rolling into sheet stock for forming containers therefrom and hot rolling the body to provide a flat rolled product having a hot rolled structure. The flat rolled product is provided with 5 to 20% of the structure being recrystallized. Thereafter, it is annealed in the temperature range of 400.degree. to 700.degree. F. to provide a fully recrystallized product which is cold rolled to sheet stock having reduced earing during container forming.
patent: 3318738 (1967-05-01), Winter
patent: 3802931 (1974-04-01), Bylund
patent: 4000009 (1976-12-01), Chatfield
patent: 4526625 (1985-07-01), Merchant et al.
patent: 4609408 (1986-09-01), Rodrigues et al.
Aluminum Company of America
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