Effect of Nozzle Geometry on Melt Flow Simulation and Structural Property of Thermoplastic Nanocomposites in Fused Deposition Modeling

Papon, Easir Arafat; Haque, A.; Sharif, M. A. R.

doi:10.12783/asc2017/15339

Cited by 23 publications

(34 citation statements)

References 11 publications

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“…By investigating inter-raster void, the [±45°] samples have diamond-shaped voids but the [0°/90°] have triangular voids. The triangular void has more contact area (~75%) than diamond-shaped voids, which generates a lower void content and a better interfacial strength [47,58]. Figure 11 shows the tensile strength when printing with different crisscrossing angle.…”

Section: Raster Anglementioning

confidence: 99%

“…Considering crisscrossing raster in neat polymers, the crisscrossing is commonly used in commercial G-code generators because of their ability to distribute the stress. The balanced [±45 • ] is expected to be the strongest angle because of an even load distribution and the [0 • /90 • ] crisscrossing is expected to be the weakest angle because of the loss of all material strength along the 90 • angle which inter-raster-bonding dominates the tensile strength [56] The triangular void has more contact area (~75%) than diamond-shaped voids, which generates a lower void content and a better interfacial strength [47,58]. Figure 11 shows the tensile strength when printing with different crisscrossing angle.…”

Section: Raster Anglementioning

confidence: 99%

“…To ensure the consistency of the printed part, Geng et al [16] suggested that printing with a small nozzle diameter at a high speed and feed rate could maintain the same amount of deposited materials during the printing. The effect of nozzle outlet geometry was investigated also by Papon et al [58] using carbon nanofibre/PLA polymer. Three nozzle outlet shapes with the same cross section area of 0.1257 mm 2 were studied in this research: square, star, and circle.…”

Section: Nozzle Geometrymentioning

confidence: 99%

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Fused Deposition Modelling of Fibre Reinforced Polymer Composites: A Parametric Review

et al. 2021

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Fused deposition modelling (FDM) is a widely used additive layer manufacturing process that deposits thermoplastic material layer-by-layer to produce complex geometries within a short time. Increasingly, fibres are being used to reinforce thermoplastic filaments to improve mechanical performance. This paper reviews the available literature on fibre reinforced FDM to investigate how the mechanical, physical, and thermal properties of 3D-printed fibre reinforced thermoplastic composite materials are affected by printing parameters (e.g., printing speed, temperature, building principle, etc.) and constitutive materials properties, i.e., polymeric matrices, reinforcements, and additional materials. In particular, the reinforcement fibres are categorized in this review considering the different available types (e.g., carbon, glass, aramid, and natural), and obtainable architectures divided accordingly to the fibre length (nano, short, and continuous). The review attempts to distil the optimum processing parameters that could be deduced from across different studies by presenting graphically the relationship between process parameters and properties. This publication benefits the material developer who is investigating the process parameters to optimize the printing parameters of novel materials or looking for a good constituent combination to produce composite FDM filaments, thus helping to reduce material wastage and experimental time.

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Section: Raster Anglementioning

confidence: 99%

Section: Raster Anglementioning

confidence: 99%

Section: Nozzle Geometrymentioning

confidence: 99%

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Fused Deposition Modelling of Fibre Reinforced Polymer Composites: A Parametric Review

et al. 2021

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“…A similar 3D model has been developed by Papon et al. 48 with CNF/PLA non-Newtonian fluid, where the effect of nozzle outlet geometry on pressure drop, velocity, and temperature profile was investigated. Kim et al.…”

Section: Numerical Modeling Of Fff Processmentioning

confidence: 99%

“…A similar 3D model has been developed by Papon et al 48 with CNF/PLA non-Newtonian fluid, where the effect of nozzle outlet geometry on pressure drop, velocity, and temperature profile was investigated. Kim et al 49 also developed a similar model with different nozzle geometries (circular, flat) for photo-curable thermoset polymer nanocomposite.…”

Section: Thermal and Fluid Flow Inside Liquefier And Nozzlementioning

confidence: 99%

Review on process model, structure-property relationship of composites and future needs in fused filament fabrication

Papon

Haque

2020

Journal of Reinforced Plastics and Composites

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This paper presents the state-of-the-art of additive manufacturing of composites for processing functional, load-bearing components. A general overview of different additive manufacturing methods is provided, and specific attention is focused on fused filament fabrication-based composites processing. Different process modeling strategies are summarized, and key aspects of these models are discussed. Significant results such as thermal and fluid flow characteristics, effects of nozzle geometry on melt flow, fiber orientation, bead spreading, and solidification, the formation of residual stresses, and deformation behavior are discussed from computational modeling perspective. The scientific advancement, model limitations, and future modeling needs are prescribed reviewing the current works. A general overview of material development in nano-micro-macro-scale reinforcement is also presented. Different length-scales of reinforcement has its own challenges and promises. The continuous fiber reinforcement has a great potential for being the next-generation composites manufacturing technology. However, the challenges in reducing the void content, better bonding between the fiber–matrix, and layer-layer adhesion, and process uncertainty are some of the key areas yet to advance. Based on the current limitations on computational modeling, materials development, and process modeling studies, future research needs and recommendations are provided.

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Fiber Formation of Printed Carbon Fiber/Poly (Ether Ether Ketone) with Different Nozzle Shapes

Matschinski

Ziegler

Abstreiter

et al. 2021

Polymer International

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The additive manufacturing industry shows annual growth of more than 10 %. Therefore, the requirements for produced components are increasing, especially for individual medical technology applications printed from poly(ether ether ketone) (PEEK). This paper focuses on an investigation of an uninterrupted nozzle system for printing the high‐performance thermoplastic PEEK with short fiber reinforcements. A custom‐made nozzle design with variable outlet angle is presented and the achievable fiber length distribution and fiber orientation in the printed material are investigated. The applied nozzle angles are 60 °, 90 ° and 120 °. The geometric shape of the tip of the custom‐made nozzles is comparable to that of a reference nozzle. With regard to the height profile, the inner surface is up to three times smoother. With a decreasing nozzle angle, a lower degree of fiber damage caused by deposition can be demonstrated. Thus, the process‐induced shortening of the fibers decreases. The enhanced flow profile for small angles outweighs the simultaneous disadvantageous due to friction loss, shear stress and pressure drop. A clear result for the fiber orientation cannot be deduced. © 2021 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry.

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Effect of Nozzle Geometry on Melt Flow Simulation and Structural Property of Thermoplastic Nanocomposites in Fused Deposition Modeling

Cited by 23 publications

References 11 publications

Fused Deposition Modelling of Fibre Reinforced Polymer Composites: A Parametric Review

Fused Deposition Modelling of Fibre Reinforced Polymer Composites: A Parametric Review

Review on process model, structure-property relationship of composites and future needs in fused filament fabrication

Fiber Formation of Printed Carbon Fiber/Poly (Ether Ether Ketone) with Different Nozzle Shapes

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