Fine film pressure bags forming composite structures

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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Details

156245, 156287, 156500, 264257, 264314, 264317, B32B 3100

Patent

active

043790135

ABSTRACT:
This invention relates to a method and apparatus for fabricating a composite structure and, in particular, to a method and apparatus for fabricating a hollow composite structure having a dense laminated wall formed by bonding and curing a plurality of resin-preimpregnated fiber sheets or tapes under heat and pressure.
Hollow composite structures may be formed by applying layers of resin-impregnated fabric material onto a pressure bag covering a rigid mandrel, disposing the assembly of the mandrel, pressure bag, and uncured composite layers within an outer mold, transmitting heat to the composite material to cure the resin and applying pressure within the flexible pressure bag to act against the composite material during the curing operation to assure proper dimensions, density, structural properties and wall thickness of the cured composite structure.

REFERENCES:
patent: 3265795 (1966-08-01), Medney
patent: 3348476 (1967-10-01), Brownlee et al.
patent: 4095322 (1978-06-01), Scarpatti et al.
patent: 4096012 (1978-06-01), Belko et al.
patent: 4202856 (1980-05-01), Frikken et al.
patent: 4251309 (1981-02-01), Class et al.

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