Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing
When conducting corner printing with rotational rectangular nozzle, a greater amount of material is deposited inside the filament and hence tearing and skewing will occur on the surface of the printed filament. With the aim of maintaining the surface finish and mechanical properties of the printed f...
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sg-ntu-dr.10356-1457952021-01-27T08:27:22Z Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing Liu, Zhixin Li, Mingyang Tay, Daniel Yi Wei Weng, Yiwei Wong, Teck Neng Tan, Ming Jen School of Mechanical and Aerospace Engineering Singapore Centre for 3D Printing Engineering::Manufacturing::Production management Engineering::Manufacturing::Product engineering 3D Cementitious Material Printing SVM When conducting corner printing with rotational rectangular nozzle, a greater amount of material is deposited inside the filament and hence tearing and skewing will occur on the surface of the printed filament. With the aim of maintaining the surface finish and mechanical properties of the printed filament, a 3D numerical model is developed to study the flow mechanism at a corner under various conditions during the extrusion and deposition processes with rotational nozzle. After experimental validation, the numerical model is employed to study the material flow mechanism under various conditions. The results indicate that the rheological properties have little effect on the mass distribution ratio. However, a high relative nozzle travel speed, larger corner radii and lower nozzle aspect ratio is a promising route in obtaining a uniform material distribution ratio. The interlinking of process parameters affects the material distribution ratio significantly as well. Furthermore, the importance of the factors that affect the mass distribution was determined quantitatively. National Research Foundation (NRF) Accepted version This research is supported by the National Research Foundation, Prime Minister's Office, Singapore under its Medium-Sized Centre funding scheme, Sembcorp Design & Construction Pte Ltd, and Sembcorp Architects & Engineers Pte Ltd. 2021-01-08T02:48:13Z 2021-01-08T02:48:13Z 2020 Journal Article Liu, Z., Li, M., Tay, D. Y. W., Weng, Y., Wong, T. N., & Tan, M. J. (2020). Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing. Additive Manufacturing, 34, 101190-. doi:10.1016/j.addma.2020.101190 2214-7810 https://hdl.handle.net/10356/145795 10.1016/j.addma.2020.101190 34 101190 en Additive Manufacturing © 2020 Elsevier B.V. All rights reserved. This paper was published in Additive Manufacturing and is made available with permission of Elsevier B.V. application/pdf |
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Engineering::Manufacturing::Production management Engineering::Manufacturing::Product engineering 3D Cementitious Material Printing SVM Liu, Zhixin Li, Mingyang Tay, Daniel Yi Wei Weng, Yiwei Wong, Teck Neng Tan, Ming Jen Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
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When conducting corner printing with rotational rectangular nozzle, a greater amount of material is deposited inside the filament and hence tearing and skewing will occur on the surface of the printed filament. With the aim of maintaining the surface finish and mechanical properties of the printed filament, a 3D numerical model is developed to study the flow mechanism at a corner under various conditions during the extrusion and deposition processes with rotational nozzle. After experimental validation, the numerical model is employed to study the material flow mechanism under various conditions. The results indicate that the rheological properties have little effect on the mass distribution ratio. However, a high relative nozzle travel speed, larger corner radii and lower nozzle aspect ratio is a promising route in obtaining a uniform material distribution ratio. The interlinking of process parameters affects the material distribution ratio significantly as well. Furthermore, the importance of the factors that affect the mass distribution was determined quantitatively. |
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School of Mechanical and Aerospace Engineering |
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School of Mechanical and Aerospace Engineering Liu, Zhixin Li, Mingyang Tay, Daniel Yi Wei Weng, Yiwei Wong, Teck Neng Tan, Ming Jen |
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Article |
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Liu, Zhixin Li, Mingyang Tay, Daniel Yi Wei Weng, Yiwei Wong, Teck Neng Tan, Ming Jen |
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Liu, Zhixin |
title |
Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
title_short |
Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
title_full |
Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
title_fullStr |
Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
title_full_unstemmed |
Rotation nozzle and numerical simulation of mass distribution at corners in 3D cementitious material printing |
title_sort |
rotation nozzle and numerical simulation of mass distribution at corners in 3d cementitious material printing |
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2021 |
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https://hdl.handle.net/10356/145795 |
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1690658462537613312 |