Anisotropic Mechanical Properties of ABS Parts Fabricated by Fused Deposition Modelling

Ziemian, Constance W.; Sharma, Mala M.; Ziemian, Sophia N.

doi:10.5772/34233

Cited by 257 publications

(263 citation statements)

References 13 publications

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“…The specimen orientation is shown in Figure 2. Another printing parameter that has been analyzed is filament orientation during the printing process (Ziemian & Sharma, 2012). Four different orientations were studied: 0º, 45º, 90º and +45º/-45º (see Figure 1) in order to compare the tensile strengths.…”

Section: Methodsmentioning

confidence: 99%

Investigating the influence of infill percentage on the mechanical properties of fused deposition modelled ABS parts

2016

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ABSTRACT3D printing is a manufacturing process that is usually used for modeling and prototyping. One of the most popular printing techniques is fused deposition modeling (FDM), which is based on adding melted material layer by layer. Although FDM has several advantages with respect to other manufacturing materials, there are several problems that have to be faced. When setting the printing options, several parameters have to be taken into account, such as temperature, speed, infill percentage, etc. Selecting these parameters is often a great challenge for the user, and is generally solved by experience without considering the influence of variations in the parameters on the mechanical properties of the printed parts.This article analyzes the influence of the infill percentage on the mechanical properties of ABS (Acrylonitrile Butadiene Styrene) printed parts. In order to characterize this influence, test specimens for tensile strength and Charpy tests were printed with a Makerbot Replicator 2X printer, in which the infill percentage was varied but the rest of the printing parameters were kept constant. Three different results were analyzed for these tests: tensile strength, impact resistance, and effective printing time. Results showed that the maximum tensile force (1438 N) and tensile stress (34,57 MPa) were obtained by using 100 % infill. The maximum impact resistance, 1,55 J, was also obtained with 100 % infill. In terms of effective printing time, results showed that printing with an infill range between 50 % and 98 % is not recommended, since the effective printing time is higher than with a 100 % infill and the tensile strength and impact resistance are smaller. In addition, in comparing the results of our analysis with results from other authors, it can be concluded that the printer type and plastic roll significantly influence the mechanical properties of ABS parts.Keywords: 3D printing, mechanical properties, FDM process, ABS, makerbot replicator 2X. RESUMENLa impresión 3D es un proceso de manufactura que se basa en la fabricación de prototipos, partes y piezas funcionales. Existen diferentes métodos, en los cuales se utilizan distintos materiales en diversos formatos. Uno de los métodos más utilizados es el modelado por deposición fundida (FDM). A pesar de las ventajas que posee con respecto a otros procesos de fabricación, la impresión 3D no está libre de dificultades o problemas. Al momento de configurar una impresión, se deben ingresar parámetros para cada una de las variables presentes en el proceso, como por ejemplo: temperatura, velocidad, porcentaje de relleno, etc. La elección de dichos parámetros muchas veces resulta ser un problema para el operador, y generalmente se realiza en función de su experiencia, sin considerar la influencia que estos parámetros tendrán en las propiedades mecánicas del elemento terminado. Este trabajo analiza la influencia del porcentaje de relleno en la resistencia mecánica de piezas fabricadas en ABS (Acrilonitrilo Butadieno Estireno). Para ello, se imprimieron pr...

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Section: Methodsmentioning

confidence: 99%

Investigating the influence of infill percentage on the mechanical properties of fused deposition modelled ABS parts

2016

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“…The material is extruded and laid in tracks at a molten state and the newly deposited material fuses with adjacent material that has already been deposited. After an entire layer is deposited, the build platform moves downward along the z-axis by an increment equal to the filament height (layer thickness) and the next layer is deposited on top of it [1].…”

Section: Introductionmentioning

confidence: 99%

Effects of Raster Orientation, Infill Rate and Infill Pattern on the Mechanical Properties of 3D Printed Materials

Dudescu

Racz

2017

ACTA Universitatis Cibiniensis

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“…These specimens experienced brittle interfaced failure. Weak interlayer bonding or some amount of interlayer porosity was evident in the failure of the specimens and appeared to be the cause of layer delamination along to the WPC during loading [8]. This is also contributed from the miscible polymer compound which depends on the materials composition ratios and processing condition during the fabrication process.…”

Section: Scanning Electron Microscopy (Sem) Of Wood Polymer Compositementioning

confidence: 99%

Photostability Characterization of Wood Polymer Composites of Polyvinyl Chloride and Rice Husk to Ultra-Violet Irradiation Exposure

2016

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Abstract. In this study, the photostability of wood polymer composites (WPC) was assessed by using ultra-violet accelerated weathering test. Meanwhile, the mechanical properties of WPC show strength improvement at prolonged UV irradiation exposure with 43.21 MPa and maximum strain of 4.08 % at 5000 hours and 1000 hours UV irradiation exposure respectively. The colour stability of WPC was improved by addition of Ultraviolet (UV) stabilizer during pre-mixing process which shows positive effect on the colour stability and prevented chalking of the composites for external use. Generally, discolourations of WPC during test exposure were caused by degradation of both wood and plastic. Therefore, incorporation with pigments and other additives gives improvement to the photostability of WPC. This is based on the increment of WPCs mechanical property while the morphological fracture surface of dumbbell test specimens revealed the pull out rice husk fiber which contributed to the distribution of load in the WPC samples.

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Anisotropic Mechanical Properties of ABS Parts Fabricated by Fused Deposition Modelling

Cited by 257 publications

References 13 publications

Investigating the influence of infill percentage on the mechanical properties of fused deposition modelled ABS parts

Investigating the influence of infill percentage on the mechanical properties of fused deposition modelled ABS parts

Effects of Raster Orientation, Infill Rate and Infill Pattern on the Mechanical Properties of 3D Printed Materials

Photostability Characterization of Wood Polymer Composites of Polyvinyl Chloride and Rice Husk to Ultra-Violet Irradiation Exposure

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