The 3D printing of continuous carbon fiber–reinforced thermoplastics (c-CFRTP) results in fiber waviness and voids that limit mechanical performance. The effects of tensioning and compaction forces during 3D printing were experimentally studied to suppress fiber waviness. A tensioning force was generated along the filament to straighten the fibers by asynchronously controlling the filament feeding and print speeds. A compaction force was applied through the nozzle tip by setting the layer height to reduce the voids. Microscopic images of specimen cross-sections and surfaces indicated a reduction in fiber waviness and voids after these treatments, and three-point bending tests demonstrated improved mechanical properties. This combination of tensioning and compaction forces achieved 28% and 45% higher bending stiffness and strength, respectively. Tensioning and compaction forces are important printing parameters for the 3D printing of high-performance c-CFRTP.
CITATION STYLE
Ichihara, N., Ueda, M., Kajiwara, K., Le Duigou, A., & Castro, M. (2023). 3D printing with tension and compaction: prevention of fiber waviness in 3D-printed continuous carbon fiber–reinforced thermoplastics. Advanced Composite Materials. https://doi.org/10.1080/09243046.2023.2260233
Mendeley helps you to discover research relevant for your work.