Metal sheet and method for its manufacture
AssigneeGM Global Technology Operations LLC
InventorsRonald Sanders, Hartmut Baumgart
Life of this patent
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Abstract
A metal sheet that features a substructure of a first aluminum alloy and at least one reinforcement that is pressed into at least one surface of the substructure, wherein the reinforcement has in at least a direction extending parallel to the surface a large extent in relation to the thickness of the metal sheet and consists of a second aluminum alloy that is harder than the first aluminum alloy.
Claims11
A metal sheet comprising a substructure of a first aluminum alloy and at least one reinforcement that is pressed into at least one surface of the substructure, wherein the reinforcement has a length in at least a direction extending parallel to the at least one surface greater than a thickness of the metal sheet and consists of a second aluminum alloy that is harder than the first aluminum alloy, wherein the reinforcement is covered with a coating and the coating comprises an aluminum alloy foil.
A metal sheet comprising a substructure of a first aluminum alloy and at least one reinforcement that is pressed into at least one surface of the substructure, wherein the reinforcement has a length in at least a direction extending parallel to the at least one surface greater than a thickness of the metal sheet and consists of a second aluminum alloy that is harder than the first aluminum alloy, wherein the reinforcement is covered with a coating and the coating comprises a stove-enameled paint.
A method for manufacturing a metal sheet, comprising:
- placing a reinforcement of a second aluminum alloy onto a substructure of a first aluminum alloy, wherein the second aluminum alloy is harder than the first aluminum alloy and the reinforcement has a length in at least a direction extending parallel to a surface of the substructure of the first aluminum alloy greater than a thickness of the metal sheet,
- subsequently rolling the reinforcement into the substructure;
- and
- applying a coating at least onto the reinforcement after rolling the reinforcement into the substructure, wherein the coating comprises one of an aluminum alloy foil and a stove-enameled paint.
Dependencies are inferred from the claim text.