Effect of 3D Printing Parameters on the Flexural Performance of Laminated Structures: A Taguchi and ANOVA-Based Approach

Öz

The influence of important fused deposition modelling (FDM) parameters, including infill pattern, printing speed and wall thickness, on the flexural behaviors of multi-layered laminated polymer specimens, was investigated in this study. However, the literature remains limited regarding data on the flexural behavior of multi-material laminated FDM structures. To address this gap, the study develops a new three-layer laminated structure (PLA-ABS-CF/PLA) and provides statistical validation using Taguchi design and analysis of variance (ANOVA). The samples were manufactured in a three-layer structure consisting of PLA on the top, ABS in the core, and carbon fiber-reinforced PLA (CF/PLA) on the bottom. Nine experimental runs were designed according to a Taguchi L9 orthogonal array to evaluate the effect of process parameters on flexural stress. The experimental results showed that the highest flexural stress of 78.66 MPa was achieved with a ZigZag infill pattern, a printing speed of 40 mm/s, and a wall thickness of 2 mm. In the analysis of the signal-to-noise (S/N) ratio, the printing speed was found to be the most important parameter, followed by the infill pattern, with the wall thickness having a relatively minor effect. The ANOVA results showed that the contribution of printing speed to the total variation in flexural stress was 91.8% (p = 0.011) and wall thickness was statistically insignificant (p = 0.075). Three-dimensional surface response plots were used to visualize interaction effects between the parameters. Overall, results show that optimized printing speed and infill design significantly improve the flexural performance of laminated multi-material structures manufactured by FDM.

Anahtar Kelimeler

• Fused deposition modeling
• Laminated polymer composites
• Flexural stress
• Taguchi design of experiments
• Multi-material 3D printing

Etik Beyan

Ethical approval was not required for this study since no experiments involving human participants or animals were conducted.

Kaynakça

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