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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Main Authors: Liu, Zhixin, Li, Mingyang, Tay, Daniel Yi Wei, Weng, Yiwei, Wong, Teck Neng, Tan, Ming Jen
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2021
Subjects:
SVM
Online Access:https://hdl.handle.net/10356/145795
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Institution: Nanyang Technological University
Language: English
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spelling 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
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Manufacturing::Production management
Engineering::Manufacturing::Product engineering
3D Cementitious Material Printing
SVM
spellingShingle 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
description 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.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Liu, Zhixin
Li, Mingyang
Tay, Daniel Yi Wei
Weng, Yiwei
Wong, Teck Neng
Tan, Ming Jen
format Article
author Liu, Zhixin
Li, Mingyang
Tay, Daniel Yi Wei
Weng, Yiwei
Wong, Teck Neng
Tan, Ming Jen
author_sort 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
publishDate 2021
url https://hdl.handle.net/10356/145795
_version_ 1690658462537613312