An Experimental Investigations for Improving Part Strength in Fused Deposition Modeling
About this article
Keywords:
Design of experiment, FDM process, Grey relational analysis, Taguchi design and Tensile strengthAbstract
This paper aims to experimentally investigate the impact of process parameter on ultimate tensile strength & rate of fabrication through fused deposition modeling. For this purpose MakerBot Replicator -2, 3D desktop printer was used for the fabrication of test samples. ASTM D638 standard was selected for the preparation of test specimen of poly lactic acid (PLA) material. The process parameters used in this investigation were layer thickness, raster angle, infill pattern and orientation. Experiment was conducted as per the Taguchi orthogonal design array (L16). Finally Gray relational analysis (GRA) was employed to select the optimum best level of process parameter. A regression model was developed in terms of process parameters. For checking the goodness of fit for the model, a confirmation test was conducted which reveals that developed model was good enough to predict the response in the CI of 95%. The optimum level of process parameters was found to be layer thickness of 0.1 mm, raster angle 450, honeycomb infill pattern and flat orientation.
References
[1] Cheah CM, Chua CK, Lee CW, Feng C & Totong K (2005), Rapid prototyping and tooling techniques: a review of applications for rap-id investment casting. Int J Adv Manuf Technol 25, 308–320.
[2] Durgun I & Ertan R (2014), Experimental investigation of FDM process for improvement of mechanical properties and production cost. Rapid Prototyping Journal 20 (3), 228 – 235.
[3] Bellini A & Guceri S (2003), Mechanical characterization of parts fabricated using fused deposition modeling. Rapid Prototyping Journal 9(4), 252–264.
[4] Cantrell J, Rohde S, Damini D, Gurnani R, Sandro LD, Anton J, Young A and Jerez A (2016), Experimental Characterization of the Mechanical Properties of 3D-Printed ABS and Polycarbonate Parts. Rapid Prototyping Journal 23(4), 811-824.
[5] Raut S, Kumar V, Jatti S, Khedkar NK and Singh TP, (2014), In-vestigation of the effect of built orientation on mechanical proper-ties and total cost of FDM parts. Procedia Materials Science. 6, 1625 – 1630.
View more references (7)
[6] Onwubolu GC & Rayegani F (2014),Characterization and Optimi-zation of Mechanical Properties of ABS Parts Manufactured by the Fused Deposition Modelling Process. International Journal of Man-ufacturing Engineering. http://dx.doi.org/10.1155/2014/598531.
[7] Dawoud M, Taha I & Ebeid SJ (2016), Mechanical behaviour of ABS: An experimental study using FDM and injection moulding techniques. Journal of Manufacturing Process 21,39–45.
[8] Wu W, Geng P, Li G, Zhao D, Zhang H & Zhao J (2015), Influence of Layer Thickness and Raster Angle on the Mechanical Properties of 3D-Printed PEEK and a Comparative Mechanical Study be-tween PEEK and ABS, Materials 8, 5834-5846.
[9] Sajan N, John TD, Sivadasan M & Singh NK (2018), An investiga-tion on circularity error of components processed on Fused Deposi-tion Modeling (FDM). Materials Today: Proceedings 5, 1327–1334.
[10] Wang CC, Lin TW & Hu SS (2010), Optimizing the rapid prototyp-ing process by integrating the Taguchi method with the Gray rela-tional analysis. Rapid Prototyping Journal 13(5), 304–315.
[11] Roy R, (1990). A primer on the Taguchi method, Society of Manu-facturing Engineers.
[12] Jain PK, Pandey PM & Rao PVM (2008), Experimental investiga-tions for improving part strength in selective laser sintering. Virtual and Physical Prototyping 3(3), 177-188.