Reducing Surface Roughness of 3D Printed Short-Carbon Fiber Reinforced Composites

Abstract

A 100 W fibre laser source was used to minimize the surface roughness of 3D-printed Onyx parts. Furthermore, this study aimed to determine the mechanism of surface finishing, the influence of the laser process parameters (laser power, pulse frequency, and laser scanning path) on the surface morphology, and the influence of the scanning path on the dimensional accuracy of the investigated Onyx 3D-printed specimens. A significant reduction in surface roughness of 91.15% was achieved on the S3 Onyx 3D-printed specimen following laser surface polishing treatment using a 50 W laser power and a frequency of 50 kHz. The laser scanning path had little influence on the surface roughness, but had a major impact on the geometrical deviation of the treated sample.

Processing and Analysis of Hybrid Fiber-Reinforced Polyamide Composite Structures Made by Fused Granular Fabrication and Automated Tape Laying

“…However, the observed surface roughness values R a of 63 µm for FGF-1 and 95 µm for FGF-2 and FGF-3 samples are much higher than values reported in the literature for fused deposition modeling test samples with R a < 50 µm [36]. Significant reduction in surface roughness can be achieved by postprocessing, e.g., by laser polishing [37].…”

Quasi-Reaction Coarse-Grained Simulation: Unveiling the Mesoscale Interfacial Response of CSH/PVA Fiber

“…Therefore, customizing the surface of PVA fibers emerges as a more promising solution. Various methods have been employed to achieve sculpted fiber surface structure, including organic–inorganic coating, acid–base etching, plasma treatment, and 3D printing. , Farina et al . customized the fibers with different surface roughness by 3D printing technique, obtaining a desired scale-like structure.…”

“…Various methods have been employed to achieve sculpted fiber surface structure, including organic− inorganic coating, 56 acid−base etching, 57 plasma treatment, 58 and 3D printing. 59,60 Farina et al 59 customized the fibers with different surface roughness by 3D printing technique, obtaining a desired scale-like structure. It is crucial to harmonize interfacial interactions, such as water content, calcium−silica ratio, and with roughness, packing fraction, to optimize the slip-hardening and thus achieve interfacial damage design.…”

Fabrication and Characterisation of Sustainable 3D Printed Parts Using Post-consumer PLA Plastic and Virgin PLA Blends

“…One primary concern in additive manufacturing is the surface quality, which is crucial for ensuring the operation and effectiveness of printed components over time. During the additive manufacturing process, the surface roughness stage plays a critical role in achieving the desired surface quality [60]. The surface roughness, Ra, of printed parts has a significant impact on their mechanical behaviour, such as the initiation of cracks, wear resistance, and fatigue life.…”

“…The surface roughness, Ra, of printed parts has a significant impact on their mechanical behaviour, such as the initiation of cracks, wear resistance, and fatigue life. The requirement for a decrease in surface roughness is contingent upon the specific experimental approach and purpose for which the components are printed [60]. The surface roughness of the vPLA:PC-PLA (50:50) blended printed tensile test samples was analysed to evaluate the impact of the printing parameters on the manufactured samples.…”