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Additive manufacturing of fused deposition modeling for carbon fiber-PLA (CF-PLA) composites: The effects of tensile and flexural properties of process parameters


 In this paper the effect of process parameters on the tensile and flexural properties has been analyzed. We have used commercially available FDM 3D printer and material (Carbon fiber -PLA). When various processing parameters, especially when no linear processing parameters are defined, the complete factor design of experiments (DOE) is hard to research. Furthermore, a large number of samples are needed to completely exploit the exact processing parameters. The key effects of four processing parameters for the FDM process, i.e. layer height, infill density, printing speed and infill pattern, are examined in this document in the DOE of Taguchi. The mechanical characteristics of the fabricated FDM components express the power of the processing parameters. We have used the Taguchi L9 range of 9 runs with three specimens each to present the work, so 54 different processes were used to make a total of 54 specimens. In comparison to the 3D CAD model, the measurements of the manufactured specimens were tested according to standard ASTM D638 and ASTM D790. Variance analysis (ANOVA) is generated using Design Expert tools in order to assess the importance of variables and their tensile and flexural strength interactions. After doing Variance analysis (ANOVA) we got the exact parameters in which the mechanical properties are higher.