Aluminum alloy composite and method for joining thereof

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United States of America Patent

PATENT NO 8932719
SERIAL NO

12530940

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Abstract

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The object of the present invention is to strongly join an aluminum alloy part with an FRP prepreg. An object obtained by subjecting an aluminum alloy to a suitable liquid treatment so as to form a surface having large, micron-order irregularities and also fine irregularities with a period of several tens of nanometers, eliminating the presence of sodium ions from the surface and additionally forming a surface film of aluminum oxide, which is thicker than a natural oxide layer, has been found to have a powerful adhesive strength with epoxy-based adhesives. By simultaneously curing an FRP prepreg which uses the same epoxy-based adhesive in the matrix, an integral composite or structure in which FRP and aluminum alloy have been united at a joining strength of unprecedented magnitude is produced.

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Patent Owner(s)

Patent OwnerAddress
TAISEI PLAS CO LTD11-8 NIHONBASHI-HAMACHO 1-CHOME CHUO-KU TOKYO 103-0007

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andoh, Naoki Tokyo, JP 41 234
Naritomi, Masanori Tokyo, JP 50 682

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