Investigation of air flow in selective laser melting for part production with consistent mechanical properties

With the rapid improvement of technology, Additive Manufacturing is created to increase productivity. It is defined as the process of making products through fusing/adding materials layer by layer, which is the direct opposite of Subtractive Manufacturing. Additive Manufacturing helps to reduce wast...

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Main Author: Tan, Ervin Ming Ken
Other Authors: Li Hua
Format: Final Year Project
Language:English
Published: Nanyang Technological University 2020
Subjects:
Online Access:https://hdl.handle.net/10356/141349
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1413492023-03-04T19:40:25Z Investigation of air flow in selective laser melting for part production with consistent mechanical properties Tan, Ervin Ming Ken Li Hua School of Mechanical and Aerospace Engineering Huang DeJun LiHua@ntu.edu.sg, DHUANG006@e.ntu.edu.sg Engineering::Mechanical engineering With the rapid improvement of technology, Additive Manufacturing is created to increase productivity. It is defined as the process of making products through fusing/adding materials layer by layer, which is the direct opposite of Subtractive Manufacturing. Additive Manufacturing helps to reduce waste materials and if used correctly, reduce the cost and time used while increasing the product quality. It is based on three categories – liquid, solid or powder-based system. For this research, the main focus will be on Selective Laser Melting (SLM) which is a powder-based system. In order to maintain the mechanical properties of products made in SLM, much research had been done to figure out the factors affecting it. One of the important factors is the gas flow used in SLM chamber. Gas flow helps to remove unwanted by-products while creating an inert atmosphere to prevent any unnecessary chemical reactions with the metal powder by using an inert gas such as Argon. Gas flow needs to be effective and efficient in removing by-products. In this study, the author used ANSYS Fluent, a Computational Fluid Dynamics software to do simulations of gas flow in SLM chamber to investigate the behaviour of gas flow with different models. Bachelor of Engineering (Mechanical Engineering) 2020-06-08T01:58:37Z 2020-06-08T01:58:37Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/141349 en B202 application/pdf Nanyang Technological University
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Mechanical engineering
spellingShingle Engineering::Mechanical engineering
Tan, Ervin Ming Ken
Investigation of air flow in selective laser melting for part production with consistent mechanical properties
description With the rapid improvement of technology, Additive Manufacturing is created to increase productivity. It is defined as the process of making products through fusing/adding materials layer by layer, which is the direct opposite of Subtractive Manufacturing. Additive Manufacturing helps to reduce waste materials and if used correctly, reduce the cost and time used while increasing the product quality. It is based on three categories – liquid, solid or powder-based system. For this research, the main focus will be on Selective Laser Melting (SLM) which is a powder-based system. In order to maintain the mechanical properties of products made in SLM, much research had been done to figure out the factors affecting it. One of the important factors is the gas flow used in SLM chamber. Gas flow helps to remove unwanted by-products while creating an inert atmosphere to prevent any unnecessary chemical reactions with the metal powder by using an inert gas such as Argon. Gas flow needs to be effective and efficient in removing by-products. In this study, the author used ANSYS Fluent, a Computational Fluid Dynamics software to do simulations of gas flow in SLM chamber to investigate the behaviour of gas flow with different models.
author2 Li Hua
author_facet Li Hua
Tan, Ervin Ming Ken
format Final Year Project
author Tan, Ervin Ming Ken
author_sort Tan, Ervin Ming Ken
title Investigation of air flow in selective laser melting for part production with consistent mechanical properties
title_short Investigation of air flow in selective laser melting for part production with consistent mechanical properties
title_full Investigation of air flow in selective laser melting for part production with consistent mechanical properties
title_fullStr Investigation of air flow in selective laser melting for part production with consistent mechanical properties
title_full_unstemmed Investigation of air flow in selective laser melting for part production with consistent mechanical properties
title_sort investigation of air flow in selective laser melting for part production with consistent mechanical properties
publisher Nanyang Technological University
publishDate 2020
url https://hdl.handle.net/10356/141349
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