Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1991-06-20
1993-03-16
Dean, R.
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148696, 148697, 148698, 148699, 148416, 148417, 148437, 148438, 148439, C22F 104
Patent
active
051941023
ABSTRACT:
A method of improving strength in aluminum alloys. The method involves solution heat treating an aluminum alloy product, quenching the alloy product, warm working the alloy product without a pre-aging step, and aging the alloy product at 250.degree.-400.degree. F. (121.degree.-204.degree. C.). The method may be used on forgings, to impart T8-type hardness to alloys that previously could only obtain such hardness levels in non-forging applications, such as by using stretch/cold working techniques.
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Aluminum Company of America
Dean R.
Kline Michael J.
Koehler Robert R.
Silverman Arnold B.
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