Process for producing composite material connections of lattice

Details Process for producing composite material connections of lattice Process for producing composite material connections of lattice

1993-12-02

1995-07-11

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

264250, 264257, 264258, 264317, 264554, B29C 7048

Patent

active

054318700

ABSTRACT:
For producing connections made from composite material for structures having at least two hollow or non-hollow bars, interconnected by at least one hollow connecting joint, separate production takes place of blanks of said different parts with the definitive shapes, but in which the impregnation resin for the assembly of said blanks has not yet been introduced, after which they are assembled by thermosetting resin transfer moulding, so as to produce the resin matrix of the connecting joint or the complete structure at the same time as the assembly. The blanks of the connecting joints are obtained by compressing a planar textile complex formed from hot preformable textile fibers between a cavity of a shaping mould and a countermould, by cutting and folding down onto the countermould the overlap parts and performing a thermal preforming cycle.

REFERENCES:
patent: 4762740 (1988-08-01), Johnson et al.
patent: 4863771 (1989-09-01), Freeman
patent: 4923724 (1990-05-01), Day et al.
patent: 5019312 (1991-05-01), Bishop
patent: 5045251 (1991-09-01), Johnson
"Resin Transfer Molding for Advanced Composites", Advanced Composites, Debbie Stover, Mar./Apr. 1990.

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