B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 65/00 (2006.01) B29C 37/00 (2006.01) B29C 65/34 (2006.01) B29C 65/50 (2006.01) B29C 65/64 (2006.01) F16C 3/02 (2006.01)
Patent
CA 2131386
2131386 9322127 PCTABS00027 Methods for bonding metallic structures to thermoplastic and thermoset composite structures are described. The methods include steps for preparing the metallic structure (14) for bonding by knurling a mating surface of the metallic structure and molding a layer of thermoplastic material (50) over the knurled mating surface to produce a bonding surface. To bond a metallic structure (14) to a thermoplastic composite structures (16), the bonding surface of the metallic fitting is consolidated with the thermoplastic composite structure (50). To bond a metallic structure to a thermoset composite structure, a bonding surface is formed on the thermoset composite structure by partially embedding a layer of dry fibre reinforcement in a thermoplastic material layer, coating the exposed dry fiber reinforcement with thermoset resin, and curing the coating dry fiber reinforcement into the thermoset composite structure. The bonding surfaces of the thermoset composite structure and the metallic structure are then fused together by applying heat sufficient to melt the thermoplastic material layers of the bonding surfaces. A resistance heating element (54) is disposed between the bonding surfaces of the thermoset composite structure (16) and the metallic structure to provide the heat required to melt the thermoplastic material layers of the bonding surfaces.
Davis Geoffrey C.
Mcintire Allen J.
Swabey Ogilvy Renault
United Technologies Corporation
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