Parametric optimization and Experimental Verification of Flexural and Impact Performance of FDM Printed Automobile Jig Component using PA12CF

Fused deposition modeling (FDM) is one of the leading additive manufacturing methods, currently employed across different sectors to produce functional components using composite materials. This study investigates the influence of various process variables on the mechanical properties of 3D-printed Polyamide 12 containing 20% carbon fiber composite material. In this study, the layer height, infill density, and printing speed are the process parameters considered because of their significant impact on the mechanical properties of the product. The tensile strength, impact strength, and Flexural strength of PA12-CF specimens were evaluated using fused deposition modeling (FDM) in accordance with ASTM and ISO standards. Analysis of variance (ANOVA) was used to determine the importance of the process parameters in relation to the response parameters. Polyamide 12 carbon fiber (1.75 mm thickness) was used for 3D printing. Finally, as a muti-objective optimization technique, the TOPSIS and GRA method obtain an optimal set of FDM process parameters to fabricate the best parts with comprehensive mechanical properties. The proposed research ensures the successful fabrication of the Jig Component, which is used for LOGO Printing in the Automobile Industry, with reduced weight, cost of component and manufacturing process time as compared to traditional manufacturing processes and materials.