Additive manufacturing of continuous carbon fiber reinforced poly-ether-ether-ketone with ultrahigh mechanical properties |
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| Institution: | 1. Escuela de Ingenieria y Ciencias, Tecnologico de Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L, 64849, Mexico;2. Structural Integrity Research Group, Universidad de Burgos, Avenida Cantabria s/n, E-09006, Burgos, Spain;3. Escuela Politécnica Superior, Universidad de Burgos, Avenida Cantabria s/n, E-09006, Burgos, Spain;1. Instituto Tecnológico de Costa Rica, Escuela de Ingeniería en Diseño Industrial, Costa Rica;2. Instituto Tecnológico de Costa Rica, Escuela de Ciencia e Ingeniería de los Materiales, Costa Rica;3. Wagoner Fellowship, Center for Civic Leadership, Rice University, United States;1. Escuela Técnica Superior de Ingenieros Industriales, INEI, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain;2. Escuela Técnica Superior de Ingenieros Industriales, IMACI, Universidad de Castilla-La Mancha, Campus Universitario s/n, 13071, Ciudad Real, Spain;1. Escuela Técnica Superior de Ingenieros Industriales, IMACI, Universidad de Castilla-La Mancha. Avda, Camilo José Cela s/n, 13005, Ciudad Real, Spain;2. Escuela Técnica Superior de Ingenieros Industriales, INEI, Universidad de Castilla-La Mancha. Avda, Camilo José Cela s/n, 13005, Ciudad Real, Spain;1. Institute for Pulsed Power and Microwave Technology, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany;2. Polymer Engineering Department, Fraunhofer Institut für Chemische Technologie (ICT), Joseph-von-Fraunhofer-Straße 7, Pfinztal 76327, Germany |
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| Abstract: | Continuous carbon fiber reinforced poly-ether-ether-ketone (CCF/PEEK) composites have attracted significant interests in mission-critical applications for their exceptional mechanical properties and high thermal resistance. In this study, we additively manufactured CCF/PEEK laminates by the Laser-assisted Laminated Object Manufacturing technique, which was recently reported by the authors. The effects of laser power and consolidation speed on the flexural strength of the CCF/PEEK composites were studied to obtain the optimal process parameters. Hot press postprocessing was performed to further improve the mechanical properties of the composites. Various fiber alignment laminates were prepared, and the flexural and tensile properties were characterized. The hot press postprocessing 3D printed unidirectional CCF/PEEK composites exhibited ultrahigh flexural modulus and strength of 125.7 GPa and 1901.1 MPa, respectively. In addition, the tensile modulus and strength of the composites reached 133.1 GPa and 1513.8 MPa. The results showed that the fabricated CCF/PEEK exhibited superior mechanical performance compare to fused filament fabrication (FFF) printed carbon fiber reinforced thermoplastics (CFRTP). |
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| Keywords: | Additive manufacturing Carbon fiber reinforced thermoplastics Laser-assisted Poly-ether-ether-ketone |
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