Influence of slicing parameters on surface quality and mechanical properties of 3D-printed CF/PLA composites fabricated by FDM technique

This present study focuses on evaluation of mechanical properties three dimensional (3D)-printed carbon fiber/polylactic acid (CF/PLA) composites, using fused deposition modeling (FDM) technique. The composites were prepared with different slicing parameters: layer heights or thicknesses, infill densities and patterns. 3D-printed composite samples subjected to tensile, flexural interlaminar shear strength (ILSS) tests assess the influence process parameters their characteristics. Further investigations carried out evaluate effect surface roughness samples. From test results, it was evident that both rectilinear hexagonal patterns exhibited better at density thickness 60% 0.64 mm, respectively. scanning electron microscopy (SEM) images depicted lesser produced poor CF/PLA interfacial bonding major failure mode traced fiber pull-out. Therefore, engineering application depends parameters.