Aluminum sheet product having reduced earing and method of makin

Details Aluminum sheet product having reduced earing and method of makin Aluminum sheet product having reduced earing and method of makin

1989-05-04

1990-05-29

Dean, R.

Metal treatment

Compositions

Heat treating

148437, 148438, 148439, 148440, C22F 104

Patent

active

049292854

ABSTRACT:
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.

REFERENCES:
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.

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