Abstract
Whilst PPS composites are hot formable due to its thermoplastic properties, they suffer springback problems resulting in an inability to completely retain the formed shape. This paper reports on the effect of the preheating time, forming temperature and holding time on the final springback for a cross woven 40% glass fibre reinforced PPS composite. Springback was minimised, and the post forming strength of the composite maximised by reducing the preheating time and increasing the forming temperature. A minimal springback value was obtained after about 20 min holding time. Microstructure analysis indicates that under conditions that resulted in lower post forming strength, substantial fibre breakage has occured within the formed material.
Published Version
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