基于正交实验的熔融沉积成型工艺参数的优化
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摘要
采用商用聚乳酸(PLA)线材作为熔融沉积成型(FDM)打印材料,以拉伸强度和冲击强度为优化指标,设计正交试验,从分层厚度、打印速度、喷嘴温度、填充角度等元素探究成型工艺参数对FDM打印制件力学性能的影响。利用极差分析法,考察了各工艺参数对制件力学性能的影响情况,通过综合评分法和综合平衡法,获得了最优成型工艺参数组合并验证试验结果正确性。结果表明,分层厚度为0.3 mm,打印速度为90 mm/s,喷嘴温度为220℃,填充角度为45°/45°时,FDM制件的力学性能最优。
Commercial PLA filament was used as a fused deposition modeling(FDM) 3D printing material, and its tensile strength and notched impact strength were taken as optimization indexes to design orthogonal tests. The PLA parts were fabricated with an FDM printer, and the effect of layer thickness, printing speed, nozzle temperature and filling angle on the mechanical performance of the resulting parts were investigated by an orthogonal analysis method. By means of the comprehensive scoring method and comprehensive balance methods, the optimal printing process parameters were obtained and the correctness of the test results was verified. The results indicated that the mechanical properties of 3D-printed parts were optimum when the layer thickness is 0.3 mm, the printing speed is 90 mm/s, the nozzle temperature is 220 ℃, and the filling angle is 45 °/45 °.
Commercial PLA filament was used as a fused deposition modeling(FDM) 3D printing material, and its tensile strength and notched impact strength were taken as optimization indexes to design orthogonal tests. The PLA parts were fabricated with an FDM printer, and the effect of layer thickness, printing speed, nozzle temperature and filling angle on the mechanical performance of the resulting parts were investigated by an orthogonal analysis method. By means of the comprehensive scoring method and comprehensive balance methods, the optimal printing process parameters were obtained and the correctness of the test results was verified. The results indicated that the mechanical properties of 3D-printed parts were optimum when the layer thickness is 0.3 mm, the printing speed is 90 mm/s, the nozzle temperature is 220 ℃, and the filling angle is 45 °/45 °.
引文
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[4] CHACóN J M,CAMINERO M A,GARCíA-PLAZA E,et al.Additive Manufacturing of PLA Structures Using Fused Deposition Modelling:Effect of Process Parameters on Mechanical Propertiesandtheir Optimal Selection[J].Materials & Design,2017(124):143-157.
[5] DIANA P,AURELIAN Z,CATALIN A,et al.FDM Process Parameters Influence over the Mechanical Properties of Polymer Specimens:A Review[J].Polymer Testing,2018(69):157-166.
[6] GARRISON T F,MURAWSKI A,QUIRINO R L.Bio-Based Polymers with Potential for Biodegradability[J].Polymers,2016,8(7):262.
[7] 刘峰.FDM成型关键装备及工艺实验研究[D].青岛:青岛科技大学,2017.
[8] CUIFFO M A,SNYDER J,ELLIOTT A M,et al.Impact of the Fused Deposition (FDM) Printing Process on Polylactic Acid (PLA) Chemistry and Structure[J].Applied Sciences,2017,7(6):579.
[9] FAES M,FERRARISA E,MOENSA D.Influence of Inter-layer Cooling Time on the Quasi-static Properties of ABS Components Produced via Fused Deposition Modelling[J].ScienceDirect,2016(45):748-753.
[10] SUN Q,RIZVI G M,BELLEHUMEUR C T,et al.Effect of Processing Conditions on the Bonding Quality of FDM Polymer Filaments[J].Rapid Prototyping Journal,2008,14(2):72-80.
[11] SANATGAR R H,CAMPAGNE C,NIERSTRASZ V.Investigation of the Adhesion Properties of Direct 3D Printing of Polymers and Nanocomposites on Textiles:Effect of FDM Printing Process Parameters[J].Applied Surface Science,2017(403):551-563.
[12] 朱彦博,杜淼,陆超华,等.3D打印TPU软材料工艺参数对层间粘接的影响[J].高分子学报,2018,4(4):1-9.ZHU Y B,DU M,LU C H,et al.Influence of 3D Printing Parameters on the Interlayer Bonding Strength for TPU Soft Materials[J].Acta Polymerica Sinica,2018,4(4):1-9.
[13] RANKOUHI B,JAVADPOUR S,DELFANIAN F,et al.Failure Analysis and Mechanical Characterization of 3D Printed ABS With Respect to Layer Thickness and Orientation[J].Journal of Failure Analysis and Prevention,2016,16(3):467-481.