Simultaneous Optimization of TensileStrength, Energy Consumption and Processing Time on FDM Process Using Taguchi and PCR-TOPSIS

Rapid prototyping with FDM technology is widely used by industry for producing prototypes. High quality and low processing cost are the main concerns. This study aims to determine the optimal parameter setting of 3D printing based on FDM technology to produce prototypes with high tensile strength with low energy consumption and processing time. The parameters to be optimized are temperature, density and fill angle. The Taguchi method is used to design the experiment. PCR-TOPSIS is used to obtain the optimal parameter settings simultaneously. The result showed that optimal parameters setting were in level combination of extrusion temperature 210°C, 40% of density and 45° of fill angle. From the three parameters, the most significant parameter is the infill density.