Influence of process parameters on thermal and mechanical properties of <scp>polylactic acid</scp> fabricated by fused filament fabrication

Vanaei, Hamid Reza; Shirinbayan, Mohammadali; Deligant, Michaël; Raı̈ssi, Kadour; Fitoussi, Joseph; Khelladi, Sofiane; Tcharkhtchi, Abbas

doi:10.1002/pen.25419

Cited by 59 publications

(46 citation statements)

References 28 publications

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“…The test case was built considering the values for the processing variables (Table 1) that are commonly used in the desktop 3D printer to ensure a good quality part in terms of bonding between filaments and mechanical strength. 21,[25][26][27][28]…”

Section: D Printingmentioning

confidence: 99%

Experimental study of PLA thermal behavior during fused filament fabrication

Vanaei

Shirinbayan

Costa

et al. 2020

J of Applied Polymer Sci

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Fused filament fabrication (FFF) is an additive manufacturing technique that is used to produce prototypes and a gradually more important processing route to obtain final products. Due to the layer-by-layer deposition mechanism involved, bonding between adjacent layers is controlled by the thermal energy of the material being printed, which strongly depends on the temperature development of the filaments during the deposition sequence. This study reports experimental measurements of filament temperature during deposition. These temperature profiles were compared to the predictions made by a previously developed model. The two sets of data showed good agreement, particularly concerning the occurrence of reheating peaks when new filaments are deposited onto previously deposited ones. The developed experimental technique is shown to demonstrate its sensitivity to changing operating conditions, namely platform temperature and deposition velocity. The data generated can be valuable to predict more accurately the bond quality achieved in FFF parts.

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Section: D Printingmentioning

confidence: 99%

Experimental study of PLA thermal behavior during fused filament fabrication

Vanaei

Shirinbayan

Costa

et al. 2020

J of Applied Polymer Sci

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“…[ 1–3 ] Printing parameters such as nozzle temperature, layer thickness, building orientation, printing speed, infill density, and chamber temperature are critical factors that affect the mechanical, physical, and chemical properties of printed materials. [ 4–7 ]…”

Section: Introductionmentioning

confidence: 99%

Effect of processing parameters on flexural properties of 3D‐printed polyetherketoneketone using fused deposition modeling

Cheng

Liu

et al. 2020

Polymer Engineering & Sci

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Polyetherketoneketone (PEKK) is an engineering plastic with ultrahigh mechanical performance and has attracted considerable attention in the medical and technical fields. Printing parameters during fused deposition modeling (FDM) for PEKK have a significant impact on final part quality. In this study, a relationship between the process parameters and flexural properties of PEKK was investigated by conducting three‐point bending tests, and scanning electron microscopy was employed to analyze the microstructure of fracture surfaces. Nozzle temperature, layer thickness, and infill density affected flexural properties by changing the porosity and interlayer bonding strength. Interlayer separation is the main failure mode of the upright orientation samples, while intralayer failure is likely to occur in the on‐edge orientation samples. The flexural properties of FDM‐printed PEKK under optimum parameters are comparable to those of mandibular bones, indicating that PEKK is a potential candidate for repairing mandibular defects. The results highlighted in this study are fundamental to the optimal design of complex ultralight, highly efficient structures.

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“…A model was established for the forecast of the effect of the air gap on the porosity of the structure. Vanaei et al [33] concluded that influence of extruder temperature was more on cooling rate of material than other process parameters, such as support temperature, speed, and layer height. Also, investigators focused on significant parameters to optimize the process and ultimately get the combination of factors.…”

Section: Introductionmentioning

confidence: 99%

Re‐entrant auxetic structures fabricated by fused deposition modeling: An experimental study of influence of process parameters under compressive loading

Vyavahare

Kumar

2020

Polymer Engineering & Sci

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The present article is focused on investigating the influence of process parameters under compressive loading in case of reentrant auxetic structures fabricated by fused deposition modeling (FDM). Auxetic structures of acrylonitrile butadiene styrene (ABS) and poly‐lactic acid (PLA) materials are fabricated. Three process parameters of FDM namely layer thickness, raster angle, and number of contours are considered to investigate their influence on compressive strength, stiffness, and specific energy absorption (SEA). Experiments are performed on the basis of central composite design and analysis is performed using ANOVA. It is found that compressive strength of auxetic structure improves with increase in layer thickness. But with increase in raster angle, it increases first and then decreases. Compressive stiffness of structures initially decreases and then increases with increase in raster angle, while it increases with increase in number of contours. SEA of structures increases with decrease in layer thickness. Based on the analysis of experimental results, regression models are developed to predict these responses. Also, multi‐response optimization is performed to optimize strength, stiffness, and SEA. Auxetic structures failed under compressive loading are also examined using scanning electron microscope.

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Influence of process parameters on thermal and mechanical properties of polylactic acid fabricated by fused filament fabrication

Cited by 59 publications

References 28 publications

Experimental study of PLA thermal behavior during fused filament fabrication

Experimental study of PLA thermal behavior during fused filament fabrication

Effect of processing parameters on flexural properties of 3D‐printed polyetherketoneketone using fused deposition modeling

Re‐entrant auxetic structures fabricated by fused deposition modeling: An experimental study of influence of process parameters under compressive loading

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