Analysis of deposition sequence in tool-path optimization for low-cost material extrusion additive manufacturing
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This study draws attention to the issue of how sensitive a low-cost 3D printer is to the material deposition sequence, when trying to speed up the process by applying tool-path optimization. The objective was to evaluate the influence of some changes in the deposition sequence on the mechanical properties, dimensional variation, and building time of specimens manufactured in polylactic acid (PLA). To achieve that, three deposition strategies were planned considering different deposition sequences, with and without optimization. An experiment involving an interruption of the extrusion nozzle was also designed to analyze the influence of idle time during material deposition. The material properties were evaluated by tensile and three-point bending tests. The results showed that a longer idle time between adjacent raster segments caused material cool-down, which, in this study, decreased the tensile strength by 35% and the flexural strength by 46%. Therefore, in a low-cost 3D printer, if the user does not pay attention to the deposition sequence during tool-path optimization, the mechanical property of the material can be badly affected. Additionally, the optimized intercalated deposition sequence allowed for savings of up to 42.7% in manufacturing time, and no expressive dimensional variation was found between the deposition strategies.
KeywordsTool-path optimization Deposition sequence optimization Process planning Additive manufacturing Material extrusion
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This work was supported by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil) and Fundação Araucária do Paraná (Brazil).
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Conflict of interest
The authors declare that they have no conflict of interest.
- 1.ISO/ASTM 52900 (2015) Additive manufacturing—general principlesTerminologyGoogle Scholar
- 3.Volpato N, Galvão LC, Nunes LF, Scanavini LG (2015) Combining heuristics for tool-path optimization in additive manufacturing, computer-aided production engineering - 23rd CAPE conference. University of Edinburgh, EdinburghGoogle Scholar
- 8.Wah PK, Murty KG, Joneja A, Chiu LC (2002) Tool path optimization in layered manufacturing. IEEE Transactions 34:335–347Google Scholar
- 9.Weidong Y (2009) Optimal path planning in rapid prototyping based on genetic algorithm, Chinese Control and Decision Conference (CCDC 2009), pp. 5068–5072Google Scholar
- 11.Lensgraf S, Mettu RR (2016) Beyond layers: a 3d-aware toolpath algorithm for fused filament fabrication, IEEE International Conference on Robotics and Automation, May 2, pp. 3625–3631Google Scholar
- 12.Faes M, Ferraris E, Moens D (2016) Influence of inter-layer cooling time on the quase-static properties of ABS components produced via fused deposition modeling”, 18th CIRP conference on electro physical and chemical machining, April, TokyoGoogle Scholar
- 14.Huang B (2014) Alternate slicing and deposition strategies for Fused Deposition Modelling, Ph.D. Thesis, Auckland University of Technology, School of Engineering, January, 336pGoogle Scholar
- 16.ATSM D638-14 (2014) Standard test methods for tensile properties of plastics, American society for testing and materials (ASTM) internationalGoogle Scholar
- 17.ATSM D790-10 (2010) Standard test methods for flexural properties unreinforced and reinforced plastics and electrical insulating materials, American society for testing and materials (ASTM) InternationalGoogle Scholar