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US 2002/0153094 A1Published application
Method for laminating and forming a composite laminate in a single operation
AssigneeDofasco Inc.
InventorDavid D?apos;Arcy Clifford
Life of this patent
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Abstract
A method of laminating and forming a non-planar composite part from a pair of metal skins having an intervening paper layer in a single operation maintains a uniform pressure between die faces. The paper layer may be degassed prior to the lamination/forming process.
Claims22
A process for forming a composite part comprising the steps of:
- providing a pair of sheet metal skins, each of said skins having a thickness of at least about 0.005 in.;
- placing a paper layer which has been impregnated with resin between and in contact with said skins of sheet metal to form a composite stack;
- placing said stack in a die press, said die press having at least one non-planar surface in contact with said stack;
- and
- applying uniform pressure to said stack with said die press for sufficient time to bond together said skins and said paper layer while in the same operation forming a non-planar part from said stack.
2 more elements
Dependencies are inferred from the claim text.