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Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties

Multi-laser beam selective laser melting (SLM) technology based on a powder bed has been used to manufacture AlSi10Mg samples. The AlSi10Mg alloy was used as research material to systematically study the performance consistency of both the laser overlap areas and the isolated areas of the multi-lase...

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Autores principales: Liu, Bin, Kuai, Zezhou, Li, Zhonghua, Tong, Jianbin, Bai, Peikang, Li, Baoqiang, Nie, Yunfei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316947/
https://www.ncbi.nlm.nih.gov/pubmed/30469548
http://dx.doi.org/10.3390/ma11122354
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author Liu, Bin
Kuai, Zezhou
Li, Zhonghua
Tong, Jianbin
Bai, Peikang
Li, Baoqiang
Nie, Yunfei
author_facet Liu, Bin
Kuai, Zezhou
Li, Zhonghua
Tong, Jianbin
Bai, Peikang
Li, Baoqiang
Nie, Yunfei
author_sort Liu, Bin
collection PubMed
description Multi-laser beam selective laser melting (SLM) technology based on a powder bed has been used to manufacture AlSi10Mg samples. The AlSi10Mg alloy was used as research material to systematically study the performance consistency of both the laser overlap areas and the isolated areas of the multi-laser beam SLM manufactured parts. The microstructures and mechanical properties of all isolated and overlap processing areas were compared under optimized process parameters. It was discovered that there is a raised platform at the junction of the overlap areas and the isolated areas of the multi-laser SLM samples. The roughness is significantly reduced after two scans. However, the surface roughness of the samples is highest after four scans. As the number of laser scans increases, the relative density of the overlap areas of the samples improves, and there is no significant change in hardness. The tensile properties of the tensile samples are poor when the overlap area width is 0, 0.1, or 0.2 mm. When the widths of the overlap areas are equal to or greater than 0.3 mm, there is no significant difference in the tensile strength between the overlap and the isolated areas.
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spelling pubmed-63169472019-01-08 Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties Liu, Bin Kuai, Zezhou Li, Zhonghua Tong, Jianbin Bai, Peikang Li, Baoqiang Nie, Yunfei Materials (Basel) Article Multi-laser beam selective laser melting (SLM) technology based on a powder bed has been used to manufacture AlSi10Mg samples. The AlSi10Mg alloy was used as research material to systematically study the performance consistency of both the laser overlap areas and the isolated areas of the multi-laser beam SLM manufactured parts. The microstructures and mechanical properties of all isolated and overlap processing areas were compared under optimized process parameters. It was discovered that there is a raised platform at the junction of the overlap areas and the isolated areas of the multi-laser SLM samples. The roughness is significantly reduced after two scans. However, the surface roughness of the samples is highest after four scans. As the number of laser scans increases, the relative density of the overlap areas of the samples improves, and there is no significant change in hardness. The tensile properties of the tensile samples are poor when the overlap area width is 0, 0.1, or 0.2 mm. When the widths of the overlap areas are equal to or greater than 0.3 mm, there is no significant difference in the tensile strength between the overlap and the isolated areas. MDPI 2018-11-22 /pmc/articles/PMC6316947/ /pubmed/30469548 http://dx.doi.org/10.3390/ma11122354 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liu, Bin
Kuai, Zezhou
Li, Zhonghua
Tong, Jianbin
Bai, Peikang
Li, Baoqiang
Nie, Yunfei
Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title_full Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title_fullStr Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title_full_unstemmed Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title_short Performance Consistency of AlSi10Mg Alloy Manufactured by Simulating Multi Laser Beam Selective Laser Melting (SLM): Microstructures and Mechanical Properties
title_sort performance consistency of alsi10mg alloy manufactured by simulating multi laser beam selective laser melting (slm): microstructures and mechanical properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6316947/
https://www.ncbi.nlm.nih.gov/pubmed/30469548
http://dx.doi.org/10.3390/ma11122354
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