Plastic and nonmetallic article shaping or treating: processes – With twining – plying – braiding – or textile fabric formation
Patent
1992-02-04
1993-08-31
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
With twining, plying, braiding, or textile fabric formation
156172, 264257, 264275, 264314, 416134A, B29D 2800, B28B 732
Patent
active
052406610
ABSTRACT:
A method for fabricating a composite swashplate ring utilizing a thermoplastic expandable mandrel which is rigid during braiding, yet softens after resin impregnation to allow expansion in a mold to increase fiber consolidation. Preferably, the mandrel accepts the incorporation of preformed structures prior to braiding with the braided mandrel suitable for incorporation in a resin transfer mold such that a dry fiber braided article having preformed structures may be impregnated with resin and consolidated to produce a net-shaped composite swashplate ring without machining.
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Nguyen Dean
Parker David J.
Davis Robert B.
United Technlogies Corp.
Woo Jay H.
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