Carbon fiber reinforced composite materials produced using FDM technology

The study presents the results of assessing the effect of material flow compensation factor and fiber placement during FDM printing using continuous carbon fiber impregnated with PA-6 thermoplastic melt on the physical and mechanical properties of printed composites. The influence of the laid structures of continuous carbon fiber and the hardness of the fi lament material on interlayer adhesion under shear loading and tearing conditions has been established. The obtained data were used for simulations using the APM FEM software to estimate the von Mises equivalent stress. The results show that increasing the material flow compensation factor when printing a layer on the fiber surface to 105% can improve the bond strength of carbon fiber with thermoplastic polyurethane.