Process for producing a hollow fiber-composite body

Details Process for producing a hollow fiber-composite body Process for producing a hollow fiber-composite body

1991-08-08

1992-11-03

Woo, Jay H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156256, 156257, 264138, 264258, B32B 3104

Patent

active

051605627

ABSTRACT:
A process for producing a hollow composite-fiber body from wound fibers, running in a plurality of directions and embedded in a curable or fusible plastics composition, having at least one lug integrated without any interruption into the fiber-composite and protruding from the hollow fiber-composite body. This process includes forming a plastics-impregnated and circumferentially continuously wound jacket by winding one layer over the other on a shaping core a plurality of layers of at least one prepreg web having web-bound, crossing groups of parallel-running fibers. The lug is shaped and secured by a support corresponding to a set-up lug shape and which protrudes during winding from the shaping core. Immediately after the running on of the prepreg web onto the shaping core or the wound body which is forming, into the prepreg web for each separate layer a lug free cut is made that corresponds to the position and contour of the respective lug. The lug free cut is set up separately and pressed into place without any folds onto the support or onto the prepreg layers already laid there for the lug with each revolution of the shaping core and for each lug to produce a finished shaped blank. The finished shaped blank is then cured. This process thereby allows the forming of lugs, tabs, flanges or the like without any folds in their root region.

REFERENCES:
patent: 3115988 (1963-12-01), Warnken

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