Effect of Build Orientation on Mechanical Behaviour and Build Time of FDM 3D-Printed PLA Parts: An Experimental Investigation

Abstract

One of the important process parameters affecting the tensile strength and build time of the part is the build orientation. Therefore, in this study, FDM 3D-printed PLA parts were fabricated at different build orientations to examine the effects of build orientation on the tensile properties and build time of material. In this regard, three build orientations and three print angles were examined. According to results, tensile strength decreased when the build orientation of the parts was aligned from flat to upright direction and 0° to 90° printing angle. For upright build orientation, 36% less tensile strength obtained than the flat ones because of the fracture mode and the loading direction. In terms of build time, build time increased as the build orientation changed from flat to upright. Therefore, the build orientation had a big impact on the tensile properties and build time of the parts produced using FDM. The findings of this study will contribute to the literature on proper build orientations and print angles.

Keywords

• Fused deposition modeling
• 3D printing
• build orientation
• build time
• tensile strength
• PLA

References

1. [1] Altan, M., Eryildiz, M., Gumus, B., Kahraman, Y. (2018). Effects of process parameters on the quality of PLA products fabricated by fused deposition modeling (FDM): surface roughness and tensile strength. Materials Testing, 60(5): 471-477, DOI: 10.3139/120.111178
2. [2] Srinivasan, R., Ruban, W., Deepanraj, A., Bhuvanesh, R., Bhuvanesh, T. (2020). Effect on infill density on mechanical properties of PETG part fabricated by fused deposition modelling. Materials Today: Proceedings, 27(2):1838-1842, DOI: 10.1016/j.matpr.2020.03.797
3. [3] Bardiya, S., Jerald, J., Satheeshkumar, V. (2020). Effect of process parameters on the impact strength of fused filament fabricated (FFF) polylactic acid (PLA) parts. Materials Today: Proceedings, DOI: 10.1016/j.matpr.2020.08.066
4. [4] Garg, A., Bhattacharya, A., Batish, A. (2015). On Surface Finish and Dimensional Accuracy of FDM Parts after Cold Vapor Treatment. Materials and Manufacturing Processes, 31(4): 522-529, DOI: 10.1080/10426914.2015.1070425
5. [5] Alafaghani, A., Qattawi, A., Alrawi, B., Guzman, A. (2017). Experimental Optimization of Fused Deposition Modelling Processing Parameters: A Design-for-Manufacturing Approach. Procedia Manufacturing, 10: 791-803, DOI: 10.1016/j.promfg.2017.07.079
6. [6] Solomon, I.J., Sevvel, P., Gunasekaran, J. (in press). A review on the various processing parameters in FDM. Materials Today: Proceedings, DOI: 10.1016/j.matpr.2020.05.484
7. [7] Feng, L., Wang, Y., Wei, Q. (2019). PA12 Powder Recycled from SLS for FDM. Polymers, 11: 727-729, DOI: 10.3390/polym11040727
8. [8] Corapi, D., Morettini, G., Pascoletti, G.,Zitelli, C. (2019). Characterization of a Polylactic acid (PLA) produced by Fused Deposition Modeling (FDM) technology. Procedia Structural Integrity, 24: 289-295, DOI: 10.1016/j.prostr.2020.02.026

9. [9] Ashtankar, K.M., Kuthe, A.M., Rathour, B.S. (2013). Effect of build orientation on mechanical properties of rapid prototyping (Fused Deposition Modeling) made Acrylonitrile Butadiene Styrene (ABS) Parts. ASME 2013 International Mechanical Engineering Congress and Exposition, 11: 1-7, DOI: 10.1115/IMECE2013-63146
10. [10] Thrimurthulu, K., Pandey, P., Reddy, N.V. (2004). Optimum Part Deposition Orientation in Fused Deposition Modelling. International Journal of Machine Tools, 44: 585–594, DOI: 10.1016/j.ijmachtools.2003.12.004
11. [11] Durgun, I., Ertan, R. (2014). Experimental Investigation of FDM Process for Improvement of Mechanical Properties and Production Cost. Rapid prototyping, 20(3): 228–235, DOI: 10.1108/RPJ-10-2012-0091
12. [12] Chaudhari, M., Jogi, B.F., Pawade, R.S. (2018). Comparative Study of Part Characteristics Built Using Additive Manufacturing (FDM). Procedia Manuf , 20: 73-78, DOI: 10.1016/j.promfg.2018.02.010
13. [13] Wang, S., Ma, Y., Deng, Z., Zhang, S., Cai, J. (2020). Effects of fused deposition modeling process parameters on tensile, dynamic mechanical properties of 3D printed polylactic acid materials. Polymer testing, 86: 106483, DOI: 10.1016/j.polymertesting.2020.106483
14. [14] Liu, H., He, H., Peng, X., Huang, B., Li, J. (2019). Three‐dimensional printing of poly(lactic acid) bio‐based composites with sugarcane bagasse fiber: Effect of printing orientation on tensile performance. Advances in Polymer Technology, 30: 910– 922, DOI: 10.1002/pat.4524
15. [15] Cai, L., Byrd, P., Zhang, H., Schlarman, K., Zhang, Y., Golub, M., Zhang, J. (2016). Effect of Printing Orientation on Strength of 3D Printed ABS Plastics. The Minerals, Metals & Materials Society. (Eds.), TMS 2016 145th Annual Meeting & Exhibition. Springer, Cham, p. 199-204
16. [16] Jiang, J., Xu, X., Stringer, X. (2018). Support Structures for Additive Manufacturing: A Review, Journal of Manufacturing and Materials Processing, 2(64): 1-23, DOI: 10.3390/jmmp2040064