Strength of PLA Components Fabricated with Fused Deposition Technology Using a Desktop 3D Printer as a Function of Geometrical Parameters of the Process

Ve, Kuznetsov; Солонин, А. Н.; Urzhumtsev, Oleg D.; Schilling, Richard; Tavitov, Azamat G.

doi:10.3390/polym10030313

Cited by 236 publications

(203 citation statements)

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“…This can be done by adjusting the printing temperature as in the present case. It can be also achieved by using a smaller layer height as shown by Kuznetsov et al, Mostafa et al, Zhang et al, Popescu et al and many others.…”

Section: Resultsmentioning

confidence: 99%

“…This can be done by adjusting the printing temperature as in the present case. It can be also achieved by using a smaller layer height as shown by Kuznetsov et al, [23] Mostafa et al, [24] Zhang et al, [25] Popescu et al [2] and many others. With regard to the elongation at break, there is a substantial reduction of this quantity (up to 89%) compared to the elongation at break of ASA wire.…”

Section: Mechanical Performancementioning

confidence: 99%

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Microstructure, Thermal and Mechanical Behavior of 3D Printed Acrylonitrile Styrene Acrylate

Guessasma

Belhabib

Nouri

2019

Macro Materials & Eng

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Fused deposition modeling (FDM) is one of the most popular additive manufacturing techniques for polymers. Despite the numerous works on the printability of various types of polymers, there is a lack in understanding the role of the microstructure on the mechanical performance of printed parts. This work aims at addressing this particular point for the case of a polymer that did not receive much attention, namely acrylonitrile styrene acrylate or ASA. This study emphasizes on the effect of the printing temperature on thermal and mechanical performance of printed ASA using differential scanning calorimetry, infra‐red measurements, mechanical testing, X‐ray micro‐tomography, and finite element computation. The experimental results demonstrate a narrow window of printability of ASA based on the thermal response of this polymer during the laying down process. In addition, both experimental and numerical results show an evident loss in the performance that represents one third of the performance of the raw material. Despite this loss, the limited amount of generated porosity and the level of tensile strength of ASA make it a good choice as a feedstock material for FDM compared to other polymers such as acrylonitrile butadiene styrene.

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Section: Resultsmentioning

confidence: 99%

Section: Mechanical Performancementioning

confidence: 99%

Microstructure, Thermal and Mechanical Behavior of 3D Printed Acrylonitrile Styrene Acrylate

Guessasma

Belhabib

Nouri

2019

Macro Materials & Eng

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“…Kuznetsov et al 2018 [37] showed that an increase in the nozzle diameter not only reduces printing time, but also increases sample strength. Nozzle diameter has a significant influence on interlayer cohesion.…”

Section: Fig 5 Image Of Nozzle Diameter [33]mentioning

confidence: 99%

“…That is because the best results of the ultimate tensile stress, yield stress and elasticity modulus were observed for a raster angle of 0º/90º [35]. In the most of studies investigating the effect of different parameters on the strength of FDM technologies the mechanical properties are tested on flat samples oriented horizontally during the printing process [37]. Letcher and Waytashek [55] showed that the mechanical properties such as the ultimate tensile strength can be improved by exchanging the raster angle of specimens made of PLA Fig.10 Raster angles [54] According to Montero et al's [56] results of study, strength values of producing of material with various raster angles via fused deposition modeling and injection molded material is given in Fig.11 and Fig.12.…”

Section: Raster Anglementioning

confidence: 99%

“…Kim et al [36] experimentally investigated the effect of infill rate, orientation angle, and type of materials on the mechanical properties of specimens made ABS and PLA. Kuznetsov et al [37] by conducting experimental tests concluded that in addition to the strength of the filament material, the strength and stability of the bonds between the layers of the specimens are highly influenced by the printing parameters. Sagias et al [38] proposed a new approach to evaluate how the printing parameters affect the mechanical properties of the printed part to obtain a product with improved mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on the manufacturing variants influential on the strength of 3D printed products

Meram¹,

Sözen²

2020

Res. Eng. Struct. Mater.

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This paper investigates the manufacturing variants influential on the strength of 3D printed products. In contrast to the traditional manufacturing methods which produce the final product via removing materials from parts, in 3D printing technology the products are provided with adding layer by layer directly from a digital file. 3D printing technology due to overcoming the many difficulties and limitations of conventional fabrication approaches is a rapidly progressing technology which takes attention in many industries such as aerospace, automotive, medical and building industries. This paper aims to research the variants affecting the mechanical properties of components produced by 3D printing technologies. To reach this aim a comprehensive review was conducted to determine the various process and geometric parameters in 3D printing technologies. The conducted literature survey results indicate that besides the filament material, the nozzle speed and diameter, layer thickness, filament diameter, printing raster angle, printing pattern, temperature and infill density are parameters which influence the final product quality and mechanical properties in term of ultimate tensile strength, yield stress and elasticity modulus. It is concluded that 3D printing filament materials strength has direct affect on the strength of final product. By providing the adequate thermal behavior of the system, the cohesion between layers can be improved. Extrusion speed affects surface roughness and quality of the produced components. Nozzle diameter has a significant influence on interlayer cohesion. The honeycomb pattern due to facilitating the load transfer between layers provides higher mechanical strength. Findings of this study will guide the researchers and manufacturers to select appropriate printing parameters to produce component with optimum mechanical properties.

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Mechanical performance and supermolecular morphology of void free polypropylene manufactured by fused filament fabrication

Huang

Schlarb

2021

J of Applied Polymer Sci

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It is known from the literature that freedom from macroscopic defects (voids) is an essential prerequisite for good mechanical properties of 3D-printed components manufactured using fused filament fabrication. The present study further shows that the morphology and mechanical properties of void free components are significantly influenced by the choice of process parameters.Components that were printed at low temperatures and high speeds show fair and inhomogeneous supermolecular morphology, clearly visible weld seams and a special flow-induced staggered structure of the individual strands laidup. At higher magnification in the optical microscope, transcrystalline structures are visible starting from the contact area between the strands, that is, crystallization has started at the interface between the strands and is moving forward towards the center of the strands. In contrast, the samples printed at high temperatures and low speeds show a homogeneous supermolecular morphology with overall larger spherulites and a higher degree of crystallinity and compared to the specimens printed with the low temperature/high speed-set much better mechanical properties. A numerical simulation of the temperature at the contact point of the strand emerging from the hot nozzle and the cooled strand neighbor agrees well with the measured behavior. The thermal simulation thus enables the temperature to be calculated at any point in time in the welding contact and thus access to the local thermal conditions during joining, cooling and the formation of the morphology.

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Strength of PLA Components Fabricated with Fused Deposition Technology Using a Desktop 3D Printer as a Function of Geometrical Parameters of the Process

Cited by 236 publications

References 10 publications

Microstructure, Thermal and Mechanical Behavior of 3D Printed Acrylonitrile Styrene Acrylate

Microstructure, Thermal and Mechanical Behavior of 3D Printed Acrylonitrile Styrene Acrylate

Investigation on the manufacturing variants influential on the strength of 3D printed products

Mechanical performance and supermolecular morphology of void free polypropylene manufactured by fused filament fabrication

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