Optimization of material extrusion parameters for Izod impact and compressive strength of polycarbonate-graphene composite using Taguchi method and ANOVA

Fused Deposition Modeling (FDM) has become a popular technique for creating polymer components. This investigation examines the impact of nozzle temperature (200–220°C), printing, and three FDM parameters speed (15–25 mm/s) and temperature of the bed (60–80°C)—on the mechanical strength of composite parts made of polycarbonate (PC) and graphene (95:5 weight percent). Using nine test groups, a Taguchi L9 orthogonal array was employed and mechanical examinations adhered to ASTM D256 (Izod impact). Compression rules, ASTM D695, Signal-to-noise (S/N) ratio studies and analysis of variance (ANOVA) were used to determine. The settings and their effects robustness and Execution. Quantitative results At a nozzle temperature of 200°C, a printing speed of 20 mm/s, and a bed temperature of 70°C, the maximum Izod impact strength of 855 J/m (13.17 kJ/m 2 ) was attained. At a nozzle temperature of 210°C, a printing speed of 25 mm/s, and a bed temperature of 60°C, the highest compressive strength of 59.83 MPa was achieved. According to an ANOVA, nozzle temperature was the significant factor that contributed 67.32% to compressive strength and 91.18% to Izod impact strength. It is evident that different settings are optimal for strength and impact resistance. This demonstrates that parameter optimization depending on the desired attribute is required in FDM processing. These findings provide direction for creating PC-graphene composite components with certain mechanical properties. Industries like aircraft and medical gadgets can immediately benefit from the discoveries.