Method of reducing residual stresses in thermoplastic laminates

Details Method of reducing residual stresses in thermoplastic laminates Method of reducing residual stresses in thermoplastic laminates

B - Operations, Transporting

29

C

B29C 71/02 (2006.01) B29C 71/00 (2006.01)

Patent

CA 2049652

ABSTRACT Disclosed herein is a method of reducing residual stresses in a fibre reinforced thermoplastic composite laminate. The method includes the step of providing a fibre reinforced thermoplastic composite laminate having at least one free edge. Thereafter, a region adjacent the free edge is heated for a time period sufficient to form a localized melt zone of the thermoplastic in the region while under a sufficient pressure to prevent delamination of the laminate. Once this has been done, the region is cooled for a time period and under a pressure sufficient to solidify the region and to prevent delamination thereof. - 1 -

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