Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1994-03-28
2000-09-05
Jones, Deborah
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
72364, 72372, 72377, 148688, 148698, 148415, 148417, 148439, C22F 104
Patent
active
061137111
ABSTRACT:
Disclosed is a method of making lithium-containing aluminum base alloy extrusion having at least a section thereof having a low aspect ratio or which is generally axisymmetrical, the extrusions having improved properties in sections thereof having the low aspect ratio or which are axisymmetrical. The method comprises providing a body of a lithium-containing aluminum alloy, pressing a portion of the body which is to form the axisymmetrical or low aspect ratio section through a tortuous path and extruding an axisymmetrical or a low aspect ratio extrusion section. The axisymmetrical or low aspect ratio section of the extrusion has a tensile strength of at least 60 ksi and an ultimate yield strength at least 4.5 ksi greater than the tensile yield strength.
REFERENCES:
patent: 4961792 (1990-10-01), Rioja et al.
patent: 5151136 (1992-09-01), Witters et al.
Denzer, D. K. et al, Texture and Properties of 2090,8090 and 7050 Extruded Products, presented at the Sixth Annual International Aluminum-Lithium Conference, Garmisch-Partenkirchen, Germany, Oct. 7-11, 1991.
Tempus, G. et al, Influence of Extrusion Process Parameters on the Mechanical Properties of Al-Li-Extrusions, Published in A1-Li IV, Paris, 1987.
Calles, W. et al, Influence of Alloying Elements and Temper on the Mechanical Properties of A1-Mg-Li-Alloys of the 01420-Type, 6th Int. A1-Li-Conference, Garmisch, Oct. 1991.
Armanie Kevin P.
Brooks Charles E.
Coker Walter D.
Denzer Diana K.
Gadbery Daniel K.
Aluminum Company of America
Brownlee David W.
Jones Deborah
Koehler Robert R.
Levine Edward L.
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