CF/LM-PAEK: Characterisation and sensitivity to critical process parameters for automated fibre placement. (15th March 2022)

• Record Type: Journal Article
• Authors: Raps, L.; Chadwick, A.R.; Schiel, I.; Schmidt, I.
• Is Part Of: Composite structures. Volume 284(2022)
• Publication Date: 2022-03-15
• Subjects: Thermoplastic resin -- Mechanical properties -- Thermal properties -- Automated fibre placement (AFP); Composite construction -- Periodicals; Composites -- Périodiques; 624.18
• DOI: 10.1016/j.compstruct.2021.115087
• Languages: English
• ISSNs: 0263-8223

Abstract

Abstract: This paper presents an investigation into Automated Fibre Placement process parameters for a novel carbon-fibre-reinforced thermoplastic material based on a low-melt polyaryl ether ketone polymer matrix (CF/LM-PAEK). The primary focus of this investigation is in-situ consolidation, with parameter sets for sample manufacturing selected based on a Design of Experiment method and analysed by means of mechanical and thermal testing. For in-situ consolidation, a maximum shear strength of 33.6 MPa and a crystallinity of 27.3% is achieved. Subsequent tempering increases shear strength up to 46.5 MPa and crystallinity up to 32%. The material was found to be insensitive to layup speed within the tested parameter range (1–15 m/min), achieving similar results for high layup speeds.