Investigation on Layer Thickness on Mechanical Properties and Dimension Accuracy in Fused Deposition Modelling 3D Printing

Ming Yi Chen; Rayson Pang; Mun Kou Lai

doi:10.4028/p-3S2pqO

Paper Titles

Physical and Optical Properties of CeF₃ Doped with Aluminium Fluorophosphate Glasses
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Green Bionanocomposites of Poly(Lactic Acid) (PLA) and Linear Low-Density Polyethylene (LLDPE): Fabrication and Properties
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Laboratory Investigation and Empirical Modelling of Polymer Solution Viscosity
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Effects of Gamma Irradiation on the Tensile Properties of 3D-Printed Polycarbonate Acrylonitrile Butadiene Styrene
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Investigation on Layer Thickness on Mechanical Properties and Dimension Accuracy in Fused Deposition Modelling 3D Printing
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Effects of Thermal Cycling on the Mechanical Strength of TPU 3D-Printed Material
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Analyzing the Sound of Materials: Application of Acoustic Emission Technique for Monitoring Material Behavior
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Using Borax as a Cross-Linking Agent in Poly(Vinyl Alcohol)/Hemp-Extracted Cellulose Hydrogels
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Physical and Chemical Characterization of Lignin-Based Carbon as Acidic Catalyst
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HomeMaterials Science ForumMaterials Science Forum Vol. 1118Investigation on Layer Thickness on Mechanical...

Investigation on Layer Thickness on Mechanical Properties and Dimension Accuracy in Fused Deposition Modelling 3D Printing

Abstract:

In the current era of additive manufacturing, Fused Deposition Modelling (FDM) method of printing is being studied extensively to print a concept model. Therefore, the dimensional accuracy and the mechanical properties of the FDM 3D printed part are very important. In this study, the tensile specimens are prepared according to ASTM D638 Type I. Dimensions of the specimen is measured in the x-direction (length), y-direction (width), and z-direction (height) and is compared against the standard measurement for accuracy. Tensile stress, strain at break and Young’s modulus were also investigated. Overall, the dimension accuracy achieved is more than 98%. The highest accuracy is obtained by using 0.2mm layer thickness and 0.2mm initial layer thickness. The tensile stress, Young’s modulus and strain at break are found to decrease when the layer thickness is increased. This is due having more layer with lesser and smaller voids which increases the strength and stiffness. Increasing initial layer thickness, however, has a low influence on the tensile stress but can greatly affect the Young’s modulus.