Method for producing hollow composite articles by winding/laying

Details Method for producing hollow composite articles by winding/laying Method for producing hollow composite articles by winding/laying

1994-06-02

1996-11-05

Davis, Robert

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156156, 156175, 156190, 264258, 264314, 264334, B29C 7020, B29C 7022, B29C 7034

Patent

active

055713572

ABSTRACT:
Method for embodying hollow articles made of composite material including at least one access orifice via winding/laying down fibers on an expansible mandrel, the resulting articles and a recoverable and removable mandrel. The method includes placing preimpregnated fibers on an expansible, extractable mandrel having a longitudinal axis by at least one of winding and laying down the preimpregnated fibers on the mandrel, the placing of circumferential fibers of the preimpregnated fibers comprising placing the circumferential fibers at an angle to approach or reach 90.degree. with respect to the longitudinal axis and to form on the mandrel a sinuous line and/or plural, discontinuous elements, so as to enable the preimpregnated fibers to be expanded circumferentially during radial expansion of the mandrel; and expanding the mandrel inside a shaper while polymerizing the preimpregnated fibers.

REFERENCES:
patent: 3033730 (1962-05-01), Martin
patent: 3316337 (1967-04-01), North
patent: 3791900 (1974-02-01), Goerden et al.
patent: 3967996 (1976-07-01), Kamov et al.
patent: 4469730 (1984-09-01), Burhans
patent: 4892772 (1990-01-01), Su
patent: 5192384 (1993-03-01), Barrier et al.

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