Production of aluminum alloy sheet

Details Production of aluminum alloy sheet Production of aluminum alloy sheet

1980-04-28

1982-06-15

Dean, R.

Metal treatment

Compositions

Heat treating

148 115A, 148415, 148416, C22F 104

Patent

active

043349358

ABSTRACT:
Fine-grained, formable Al-Mn alloy sheet is produced from strip-cast slab (e.g. twin-roll-cast slab) by including 1.3-2.3% Mn in the alloy, slab annealing the workpiece by heating it to precipitate most of the Mn in fine intermetallic particles, cold rolling the workpiece to sheet of final gauge with an interanneal performed (between successive cold rolling stages) under nonrecrystallizing conditions to reduce the amount of Mn present in solid solution in the aluminum matrix, and annealing the final sheet.

REFERENCES:
patent: 3930895 (1976-01-01), Moser et al.
patent: 4111721 (1978-09-01), Hitchler et al.

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