Optimization of Process Parameters of Fused Filament Fabrication of Polylactic Acid Composites Reinforced by Aluminum Using Taguchi Approach

The benefits of the fused filament fabrication (FFF) method, including its simplicity, affordability, and accessibility, have made it most commonly used additive manufacturing technique. Polylactic acid (PLA) is widely material in FFF, but use has been limited by low mechanical properties a small processing window. To address this, PLA composites are to improve properties. Correlating with process parameters crucial for producing high-quality composite parts. This study investigated effects on properties, such as tensile strength elongation-at-break, using customized Delta Rostock FFF printer. Two types filaments were used, pure PLA/Aluminum composites. Printing speed (10, 20, 30 mm/s) raster angle (0/90, −45/45, −30/60) selected input parameters. Taguchi method was experiment design, signal-to-noise ratio analysis statistical optimization. optimal values achieving maximum 61.85 MPa elongation-at-break 17.7% determined. Furthermore, indicated that type had greatest influence strength, whereas printing impact elongation-at-break.