Investigation of support structure configurations for selective laser melting of In718

The Selective Laser Melting (SLM), as a widely used metallic Additive manufacturing (AM) process, relies heavily on support structures. This study investigated the impact of different support structure configurations on the quality of In718 samples fabricated through SLM. On the basis of a comprehen...

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Main Authors: Yi Nie, Chenlong Xu, Zhongkui Liu, Lihang Yang, Tianqi Li, Yinfeng He
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Alexandria Engineering Journal
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Online Access:http://www.sciencedirect.com/science/article/pii/S1110016824014194
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author Yi Nie
Chenlong Xu
Zhongkui Liu
Lihang Yang
Tianqi Li
Yinfeng He
author_facet Yi Nie
Chenlong Xu
Zhongkui Liu
Lihang Yang
Tianqi Li
Yinfeng He
author_sort Yi Nie
collection DOAJ
description The Selective Laser Melting (SLM), as a widely used metallic Additive manufacturing (AM) process, relies heavily on support structures. This study investigated the impact of different support structure configurations on the quality of In718 samples fabricated through SLM. On the basis of a comprehensive review of existing support structures configurations from the literature, three typical configurations: block, cone, and lattice, were designed to support cantilever parts for performance comparison. A coupled thermo-structural finite element simulation using ANSYS was performed to evaluate the temperature, deformation, and thermal stress evolution during the printing process of the three supported cantilever structures. The residual stress and deformation of the printed In718 cantilevers with different support structures were measured for validation. The results showed that block support exhibits the best strength and heat dissipation capability, making it the most effective support configuration for the SLM of In718 material. This research provides a fundamental procedure for evaluating the supporting performances among various support structures for the SLM process.
format Article
id doaj-art-91f9e7602b0b4408a66a55e2e6f037b0
institution Kabale University
issn 1110-0168
language English
publishDate 2025-01-01
publisher Elsevier
record_format Article
series Alexandria Engineering Journal
spelling doaj-art-91f9e7602b0b4408a66a55e2e6f037b02025-01-29T05:00:17ZengElsevierAlexandria Engineering Journal1110-01682025-01-01112281292Investigation of support structure configurations for selective laser melting of In718Yi Nie0Chenlong Xu1Zhongkui Liu2Lihang Yang3Tianqi Li4Yinfeng He5Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China; Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China; Corresponding author at: Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China.Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China; Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR ChinaNottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR ChinaNottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR ChinaFaculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR ChinaNottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China; Faculty of Science and Engineering, University of Nottingham Ningbo China, Ningbo, Zhejiang 315100, PR China; Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UKThe Selective Laser Melting (SLM), as a widely used metallic Additive manufacturing (AM) process, relies heavily on support structures. This study investigated the impact of different support structure configurations on the quality of In718 samples fabricated through SLM. On the basis of a comprehensive review of existing support structures configurations from the literature, three typical configurations: block, cone, and lattice, were designed to support cantilever parts for performance comparison. A coupled thermo-structural finite element simulation using ANSYS was performed to evaluate the temperature, deformation, and thermal stress evolution during the printing process of the three supported cantilever structures. The residual stress and deformation of the printed In718 cantilevers with different support structures were measured for validation. The results showed that block support exhibits the best strength and heat dissipation capability, making it the most effective support configuration for the SLM of In718 material. This research provides a fundamental procedure for evaluating the supporting performances among various support structures for the SLM process.http://www.sciencedirect.com/science/article/pii/S1110016824014194Selective laser meltingSupport structureIn 718DeformationResidual stress
spellingShingle Yi Nie
Chenlong Xu
Zhongkui Liu
Lihang Yang
Tianqi Li
Yinfeng He
Investigation of support structure configurations for selective laser melting of In718
Alexandria Engineering Journal
Selective laser melting
Support structure
In 718
Deformation
Residual stress
title Investigation of support structure configurations for selective laser melting of In718
title_full Investigation of support structure configurations for selective laser melting of In718
title_fullStr Investigation of support structure configurations for selective laser melting of In718
title_full_unstemmed Investigation of support structure configurations for selective laser melting of In718
title_short Investigation of support structure configurations for selective laser melting of In718
title_sort investigation of support structure configurations for selective laser melting of in718
topic Selective laser melting
Support structure
In 718
Deformation
Residual stress
url http://www.sciencedirect.com/science/article/pii/S1110016824014194
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AT chenlongxu investigationofsupportstructureconfigurationsforselectivelasermeltingofin718
AT zhongkuiliu investigationofsupportstructureconfigurationsforselectivelasermeltingofin718
AT lihangyang investigationofsupportstructureconfigurationsforselectivelasermeltingofin718
AT tianqili investigationofsupportstructureconfigurationsforselectivelasermeltingofin718
AT yinfenghe investigationofsupportstructureconfigurationsforselectivelasermeltingofin718