An Investigation of Printing Parameters of Independent Extrusion Type 3D Print Continuous Carbon Fiber-Reinforced PLA

Fused filament fabrication (FFF) technology is highly favored by various industries as the simplest and most commonly used in additive manufacturing. The embedding of continuous fiber-reinforced thermoplastic composites (CFRTC) a great help to compensate for mechanical properties FFF-printed specimens. In this paper, optimal printing parameters printed specimens containing carbon PLA were investigated Taguchi method, full factorial analysis, tensile test. Fiber layer thickness fiber speed are significant factors. After excluding influence overlap, obtained. When 0.05 mm, nozzle 250 mm/min, temperature 210 °C, maximum stress sample 189.52 MPa. specimen different can be doubled, which shows on specimen. Compared with using pure printing, increase was 703.5%. Then failure mechanism 3D-printed CFRTC thicknesses microstructural morphology fracture interfacial property analysis. bonding force revealed. Through it found that lower layer, better interface specimen, minimum suitable FFF independent extrusion printer found.