Effect of process parameters on the impact strength of fused filament fabricated (FFF) polylactic acid (PLA) parts

Bardiya, Shrikant; Jerald, Jason; Satheeshkumar, V.

doi:10.1016/j.matpr.2020.08.066

Cited by 17 publications

(12 citation statements)

References 9 publications

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“…There are many different AM techniques, including Stereolithography (SLA), Selective Laser Sintering (SLS) or Laminated Object Manufacturing (LOM), etc. Among these AM techniques, Fused Deposition Modeling (FDM) stands out and is frequently used around the world [1][2][3]. A wide variety of materials are available in the FDM technique which has low maintenance cost, low fabrication cost even for complex parts and is environmentally friendly [4].…”

Section: Introductionmentioning

confidence: 99%

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

Eryıldız

2021

European Mechanical Science

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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 was obtained compared to 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.

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Section: Introductionmentioning

confidence: 99%

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

Eryıldız

2021

European Mechanical Science

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“…For instance, print speed [34,38] affects the velocity of the process and then the substrate temperature on which the filament will be settled. Infill density [34,[38][39][40][41][42][43][44] theoretically gives the final item's density and, consequently, the void percentage. Infill pattern and raster angle [11,34,41] lead to the filament adhesion behavior and change the mechanical behavior like the fibers in a composite laminate.…”

Section: Introductionmentioning

confidence: 99%

“…Infill pattern and raster angle [11,34,41] lead to the filament adhesion behavior and change the mechanical behavior like the fibers in a composite laminate. Build orientation [34,[40][41][42][43]45] establishes the growth direction and is crucial because it influences the section or plane's more excellent resistance. Extrusion temperature [34,39] determines the filaments' cooling behavior and deposition temperature.…”

Section: Introductionmentioning

confidence: 99%

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Experimental integrated approach for mechanical characteristic optimization of FDM-printed PLA in an energy-saving perspective

Napolitano

Cozzolino

Papa

et al. 2022

Int J Adv Manuf Technol

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This experimental study investigates the effects of process parameters for 3D printing polylactic acid (PLA) samples on both the mechanical properties obtained and the energy consumption in the fused deposition modelling (FDM) process. The explained experimental activities provide an in-depth evaluation of all the strategies adopted in different temperatures and scan speed strategies. The results, extracted in tensile strength, ultrasonic inspection (UT), and specific energy consumption (SEC), highlight the printing parameters that mainly affect the mechanical characteristics of the final workpieces and the energy consumption to find an appropriate energy-saving energy strategy for the PLA additive manufacturing process. The results indicate a more excellent uniformity of the molded material, reducing the printing time and total energy consumption at high speeds (V = 110 mm/s) and one level of temperature (T = 215 °C). A new efficiency index has been introduced to release guidelines to pursue the best setup compromise.

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“…In this work, a shear test developed specifically for 3D-printed PLA parts is presented. This raw material is well examined in numerous published works [ 18 , 19 , 20 ], so most of the influencing factors of the printing can be considered.…”

Section: Introductionmentioning

confidence: 99%

Layer Adhesion Test of Additively Manufactured Pins: A Shear Test

2021

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Additive Manufacturing (AM) became a popular engineering solution not only for Rapid Prototyping (RP) as a part of product development but as an effective solution for producing complex geometries as fully functional components. Even the modern engineering tools, such as the different simulation software, have a shape optimization solution especially for parts created by AM. To extend the application of these methods in this work, the failure properties of the 3D-printed parts have been investigated via shear test measurements. The layer adhesion can be calculated based on the results, which can be used later for further numerical modeling. In conclusion, it can be stated that the layer formation and the structure of the infill have a great influence on the mechanical properties. The layers formed following the conventional zig-zag infill style show a random failure, and the layers created via extruded concentric circles show more predictable load resistance.

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Effect of process parameters on the impact strength of fused filament fabricated (FFF) polylactic acid (PLA) parts

Cited by 17 publications

References 9 publications

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

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

Experimental integrated approach for mechanical characteristic optimization of FDM-printed PLA in an energy-saving perspective

Layer Adhesion Test of Additively Manufactured Pins: A Shear Test

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