Thermal cycling, microstructure and tensile performance of PLA-PHA polymer printed using fused deposition modelling technique

Guessasma, Sofiane; Belhabib, Sofiane; Nouri, H.

doi:10.1108/rpj-06-2019-0151

Cited by 20 publications

(24 citation statements)

References 38 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, a further rise of temperature increased the fluidity of molten plastic, due to which the filaments lose their viscosity and void were constantly produced reducing the mechanical properties of the part ( Figure 8 c). These results were confirmed by Guessasma, et al (2019) [ 77 ], who studied the effect of the printing temperature on the PLA-PHA plastic. The results showed that with the increase of the temperature up to 240 °C, the tensile strength and strain at break increased.…”

Section: Influence Of Process Parameters On the Strength Of Fdm Partssupporting

confidence: 72%

See 1 more Smart Citation

Optimisation of Strength Properties of FDM Printed Parts—A Critical Review

et al. 2021

View full text Add to dashboard Cite

Additive Manufacturing is currently growing fast, especially fused deposition modeling (FDM), also known as fused filament fabrication (FFF). When manufacturing parts use FDM, there are two key parameters—strength of the part and dimensional accuracy—that need to be considered. Although FDM is a popular technology for fabricating prototypes with complex geometry and other part product with reduced cycle time, it is also limited by several drawbacks including inadequate mechanical properties and reduced dimensional accuracy. It is evident that part qualities are greatly influenced by the various process parameters, therefore an extensive review of the effects of the following process parameters was carried out: infill density, infill patterns, extrusion temperature, layer thickness, nozzle diameter, raster angle and build orientation on the mechanical properties. It was found from the literature that layer thickness is the most important factor among the studied ones. Although manipulation of process parameters makes significant differences in the quality and mechanical properties of the printed part, the ideal combination of parameters is challenging to achieve. Hence, this study also includes the influence of pre-processing of the printed part to improve the part strength and new research trends such as, vacuum-assisted FDM that has shown to improve the quality of the printing due to improved bonding between the layers. Advances in materials and technologies that are currently under development are presented. For example, the pre-deposition heating method, using an IR lamp of other technologies, shows a positive impact on the mechanical properties of the printed parts.

show abstract

Section: Influence Of Process Parameters On the Strength Of Fdm Partssupporting

confidence: 72%

“…Extrusion temperature is also able to increase the stress as the bonding between layers and neighbor filaments is facilitated. On the other hand, there is a limit up until which the extrusion temperature can be increased without worsening mechanical properties (Ning, et al (2016), Guessasma, et al (2019)).…”

mentioning

confidence: 99%

Optimisation of Strength Properties of FDM Printed Parts—A Critical Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Finally, a large dispersion is observed between the filament responses due to the significant weight of the surface flaws in the tensile behaviour. The comparison between the wood-based filament with the pure PLA/PHA filament can be considered based on the tensile results for PLA/PHA published elsewhere [19]. The pure PLA/PHA filament used as a control exhibits high stretching capabilities compared to the woody filament, and the overall tensile response does not reveal any sudden changes in the measured force [19].…”

Section: Resultsmentioning

confidence: 99%

“…The comparison between the wood-based filament with the pure PLA/PHA filament can be considered based on the tensile results for PLA/PHA published elsewhere [19]. The pure PLA/PHA filament used as a control exhibits high stretching capabilities compared to the woody filament, and the overall tensile response does not reveal any sudden changes in the measured force [19]. This confirms that the jagged behaviour of the wood-based filament is inherent to the wood filler behaviour.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Mechanical Performance of 3D Printed Wood-PLA/PHA Using Fused Deposition Modelling: Effect of Printing Temperature

2019

View full text Add to dashboard Cite

The microstructure and mechanical performance of wood-based filament is investigated in the case of Fused Deposition Modelling (FDM) technique using experimental and numerical approaches. The printing process of wood-PLA/PHA is conducted by varying the printing temperature, typically from 210 °C to 250 °C. The filament temperature during the laying down is measured using infra-red camera to study the thermal cycling. In addition, X-ray micro-tomography is used to evaluate the material arrangement of printed wood-PLA/PHA at different length scales. Tensile experiments are performed to rank the loss in mechanical performance with respect to the filament properties. Finally, finite element computation is considered to predict the tensile behaviour based on the implementation of the real 3D microstructure issued from X-ray micro-tomography. The results show that the wood-based filament is printable over a wide range of temperatures and exhibits a marked heat accumulation tendency at high printing temperatures. However, the limited gain in tensile performance at these temperatures makes 220 °C an optimal choice for printing wood-based filament. The elongation at break of 3D-printed wood-PLA/PHA is remarkably similar to the results observed for the filament. Finite element computation reveals that despite this apparent similarity, the associated deformation mechanisms are different.

show abstract

“…The filaments lose their viscosity, and a void was constantly produced, reducing the part's mechanical properties. These observations were then confirmed by another work that considered the effect of the liquefier temperature on the PLA-PHA [75]. Their results showed that, with an increase in temperature up to T Liq = 240 • C, the tensile strength increased.…”

Section: Liquefier Temperaturementioning

confidence: 54%

In-Process Monitoring of Temperature Evolution during Fused Filament Fabrication: A Journey from Numerical to Experimental Approaches

Vanaei

Shirinbayan

Deligant

et al. 2021

Thermo

View full text Add to dashboard Cite

Fused filament fabrication (FFF), an additive manufacturing technique, unlocks alternative possibilities for the production of complex geometries. In this process, the layer-by-layer deposition mechanism and several heat sources make it a thermally driven process. As heat transfer plays a particular role and determines the temperature history of the merging filaments, the in-process monitoring of the temperature profile guarantees the optimization purposes and thus the improvement of interlayer adhesion. In this review, we document the role of heat transfer in bond formation. In addition, efforts have been carried out to evaluate the correlation of FFF parameters and heat transfer and their effect on part quality. The main objective of this review paper is to provide a comprehensive study on the in-process monitoring of the filament’s temperature profile by presenting and contributing a comparison through the literature.

show abstract

Thermal cycling, microstructure and tensile performance of PLA-PHA polymer printed using fused deposition modelling technique

Cited by 20 publications

References 38 publications

Optimisation of Strength Properties of FDM Printed Parts—A Critical Review

Optimisation of Strength Properties of FDM Printed Parts—A Critical Review

Microstructure and Mechanical Performance of 3D Printed Wood-PLA/PHA Using Fused Deposition Modelling: Effect of Printing Temperature

In-Process Monitoring of Temperature Evolution during Fused Filament Fabrication: A Journey from Numerical to Experimental Approaches

Contact Info

Product

Resources

About