THERMOFORMING PROCESS PARAMETER OPTIMIZATION OF THERMOPLASTIC PEKK/CF and PPS

Abstract

Thermoplastic composite parts in the aerospace industry have recently been increased due to reshaping and reused potentials of the thermoplastic composite materials. The thermoforming process is an effective manufacturing methodology to form thermoplastic composite materials. The main benefits of the process are low cost and short process time. Optimization of the process parameters is essential for correct parts production. In this present study, effects of plate geometry and connection technique, pre-heating, and pressing parameters are investigated experimentally for the thermoforming of Poly Ether Ketone Ketone / Carbon Fiber (PEKK / CF) and Polyphenylene Sulfid (PPS) sheets. Results reveal that wrinkle and warping problems of the formed sheets are minimized by optimization of these parameters.