Method of fabricating a composite structure

Details Method of fabricating a composite structure Method of fabricating a composite structure

B - Operations, Transporting

29

C

154/41

B29C 70/44 (2006.01) B29C 35/02 (2006.01) B29C 37/00 (2006.01) B29C 43/12 (2006.01)

Patent

CA 1146457

METHOD OF FABRICATING A COMPOSITE STRUCTURE ABSTRACT A method of fabricating a composite structure wherein a porous laminate comprised of a plurality of plies of fibrous material in an uncured resin matrix has entrapped air expelled. In carrying out the method, the laminate is positioned in an evacuable chamber. Vacuum is applied to the chamber to create a partial vacuum environment therein. The laminate is heated to within a temperature range wherein the resin matrix exhibits a viscosity which allows air migration through the resin matrix. The laminate is maintained within the temperature range for a time duration sufficient to expell entrapped air. The laminate can then be cured using vacuum to compress the laminate.

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