Optimization of 3D Printing Operation Parameters for Tensile Strength in PLA Based Sample

In this study, the mechanical properties of PLA+ samples produced by using fused deposition method (FDM) based 3D printer were investigated in detail for the effects of printing speed, infill rate and raster angle. For this purpose, standard tensile test specimens were prepared with a 3D printer according to Taguchi L-18 experimental design. The effects on the tensile strength of the process parameters (printing speed, infill rate and raster angle) were determined by analysis of variance (ANOVA). In addition, the process parameters for the tensile strength were optimized by applying the Taguchi methodology. Consequently, while the most effective parameter on the tensile strength was the infill rate, the raster angle and the printing speed were determined as other important parameters, respectively.