Experimental analysis and optimization of mechanical properties of FDM-processed polylactic acid using Taguchi design of experiment

Fused deposition modeling (FDM) is one of the most used additive manufacturing processes in current time. Predicting impact different 3D printing parameters on quality printed parts critical challenges facing researchers. The present paper aims to examine effect three FDM process parameters, namely velocity, extrusion temperature, and raster orientation bending strength, stiffness, deflection at break polylactic acid (PLA) using Taguchi design experiment technique. results indicate that temperature has highest mechanical properties PLA specimens followed by velocity orientation. optimum composition offering best behavior was determined. optimal predicted response 159.78 N, 39.92 N/mm, 12.55 mm for break, respectively. R 2 obtained from analysis variance (ANOVA) showed good agreement between experimental those a regression model.