Preliminary assessment of the ultra violet curing of composites manufactured by the resin infusion between double flexible tooling process

This study evaluates the feasibility of designing and incorporating a cure on demand system into the resin infusion between double flexible tooling (RIDFT) process, using ultraviolet (UV) light for the curing of composite laminates. This work set out to develop a process for the RIDFT that would eliminate or reduce the inflexibility in the current production process, resulting in shortened production cycle times. UV cured laminates were produced at a fraction of the time required for catalyst cured laminates. Mechanical and rheological tests were performed on each of the UV cured laminates produced. The results were referenced against those obtained for laminates produced using a catalyst curing system to determine their overall quality. Experimental results from the tensile and rheological tests inferred that the UV cured laminates yielded material properties that were comparable and in a few instances slightly better than that of thermally cured laminates.