Thermomechanical forging of aluminum alloys

Details Thermomechanical forging of aluminum alloys Thermomechanical forging of aluminum alloys

1984-03-14

1986-06-24

Dean, R.

Metal treatment

Compositions

Heat treating

148415, 148416, 148417, C22F 104

Patent

active

045966095

ABSTRACT:
A thermomechanical method for forging a precipitation-hardenable aluminum alloy workpiece comprises the steps of: (1) solution heat treating the workpiece to achieve a substantially homnogeneous supersaturated solid solution of the alloy throughout the workpiece; (2) partially aging the workpiece at a temperature sufficient to cause second-phase precipitate particles to form in the workpiece, the aging of the workpiece continuing until the precipitate particles acquire a size sufficient to restrict dislocation movement in the workpiece during subsequent forging without substantially hindering workability of the alloy; and (3) mechanically working the workpiece isothermally at the temperature at which aging of the workpiece occurred.

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

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