Method of producing a fine grain aluminum alloy using three axes

Details Method of producing a fine grain aluminum alloy using three axes Method of producing a fine grain aluminum alloy using three axes

Filed on

1985-10-15

Date issued

1988-01-26

Examiner

Dean, R.

Patent Class

Metal treatment

SubClass

Compositions

SubSubClass

Heat treating

Other Related Categories

148415, 148416, 148417, 420902, C22F 104

Type

Patent

Status

active

Patent number

047215372

Description

ABSTRACT:
A method is provided for imparting a very fine grain size to aluminum alloys, including alloys in the form of sheet or heavy sections such as forging billets. The alloy is first aged to form precipitates. The aged alloy is then deformed along its three principal axes in successive operations until a cummulative true strain of at least 8 is achieved.

REFERENCES:
patent: 4092181 (1978-05-01), Paton et al.

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