In the present study, the tribological behavior of 3D printed components manufactured with different raster orientations [0°/90°], [+15°/−75°], [+30°/−60°] and [+45°/−45°] was evaluated. Special attention was given to the impact of raster orientation on roughness parameters, particularly in the mean spacing of the profile and the arithmetic average roughness . Experiments were conducted on Polylactic Acid (PLA) using a reciprocated tribometer apparatus under two contact pressures and . The friction force was measured and recorded during the test. Furthermore, 3D optical profilometric analyses were conducted to characterize the wear mechanisms. The crater area and the track width W were also measured in order to investigate the wear evolution. Experimental results show that, under low load, the change of the raster orientation from [+45°/−45°] to [0°/90°] reduces the friction coefficient by ∼ 71% and decreases the track width W by ∼ 41%.
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