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AssigneeAluminum Company of America
InventorsKevin S. Papich, Ronald Bachowski, Stephen F. Baumann, Robert A. Cargnel, Gerald E. Carkin, Donald J. Clements, Ronald W. Gunkel, William H. Hoffman, Larry G. McKinney, A. Victor Pajerski, John J. Palko, Edward P. Patrick, Jr., Stephen J. Rennekamp, Philip C. Scheble, William R. Sharkins, Frank P. Swigon, William G. Truckner
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A composite metallurgical product includes a roll cast aluminum alloy core and a filler material bonded on the core. Assemblies joined by filler material are formed from this product by heating to flow the filler material into joints and subsequent solidification of the filler material in the joints. The composite product is made in several ways, including lamination at roll caster rolls, and lamination or thermal spraying at the exit side of a roll caster. The invention additionally provides for an angulation rolling method for varying percent of cladding on the composite, and a high-manganese aluminum alloy useful as core material in brazing sheet clad with aluminum-silicon brazing alloy.
A method of making a roll cast, clad sheet material comprised of a cladding of filler material and an aluminum alloy core, comprising the steps, in a roll caster comprising two rolls arranged facing one another at a roll bite, of
A method of making a composite sheet material comprised of a cladding of filler material and an aluminum alloy core, comprising the steps, in a roll caster comprising two rolls arranged facing one another at a roll bite, of feeding a band of the filler material along one of the rolls into the roll bite, feeding aluminum alloy for the core, initially in molten state, toward the roll bite, said aluminum alloy being solidified before entering the roll bite by heat extraction to the rolls and through said band, and placing the band of filler material under tension as it is fed, such that the band of filler material undergoes longitudinal deformation greater than about 5%.
In a method of making a composite sheet, in which a core is roll cast in an endless mold system including two facing rolls and a liner is bonded to the core, the improvement comprising applying a material to the liner in a manner such that the material forms an interlayer between the core and the liner and feeding said liner into said rolls under tension such that said liner undergoes longitudinal deformation of greater than about 5%.
Dependencies are inferred from the claim text.