METHOD FOR PRODUCING INTEGRATED ARTICLE OF FRP WITH METAL MATERIAL
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Dec 9, 2024
filing date -
Dec 9, 2024
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Abstract
A metal sheet (Al alloy A6061) with a thickness of 0.2 to 1.0 mm with one component epoxy adhesive painted on a surface thereof having been subjected to chemical treatment is joined by adhesion with a plate material of CFRP prepared by laminating CFRP prepregs having carbon fiber aligned in uni-direction or having crossing carbon fiber. A metal plate (a high strength Al alloy material) is joined by adhesion with the metal sheet to be an integrated object via a layer of cured adhesive of epoxy resin adhesive having a thickness after adhesion of 0.3 mm or more. The integrated object can endure large change of temperature because of deformation of the layer of cured adhesive. A basic technique is provided such that a structure of CFRP joined by adhesion with a high strength metal material that can endure a severe several thousand cycle thermal shock test is prepared, enabling an aircraft, an automobile and a moving-type robot to be of a lighter weight.
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