Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing

Abstract The availability of an in-situ monitoring and feedback control system during the implementation of metal additive manufacturing technology ensures that high-quality finished parts are manufactured. This study aims to investigate the correlation between the surface texture and internal defec...

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Autores principales:	Makiko Yonehara, Chika Kato, Toshi-Taka Ikeshoji, Koki Takeshita, Hideki Kyogoku
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9d10798e384e4a00a99ba507997326a2
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spelling	oai:doaj.org-article:9d10798e384e4a00a99ba507997326a22021-11-28T12:21:00ZCorrelation between surface texture and internal defects in laser powder-bed fusion additive manufacturing10.1038/s41598-021-02240-z2045-2322https://doaj.org/article/9d10798e384e4a00a99ba507997326a22021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02240-zhttps://doaj.org/toc/2045-2322Abstract The availability of an in-situ monitoring and feedback control system during the implementation of metal additive manufacturing technology ensures that high-quality finished parts are manufactured. This study aims to investigate the correlation between the surface texture and internal defects or density of laser-beam powder-bed fusion (LB-PBF) parts. In this study, 120 cubic specimens were fabricated via application of the LB-PBF process to the IN 718 Ni alloy powder. The density and 35 areal surface-texture parameters of manufactured specimens were determined based on the ISO 25,178–2 standard. Using a statistical method, a strong correlation was observed between the areal surface-texture parameters and density or internal defects within specimens. In particular, the areal surface-texture parameters of reduced dale height, core height, root-mean-square height, and root-mean-square gradient demonstrate a strong correlation with specimen density. Therefore, in-situ monitoring of these areal surface-texture parameters can facilitate their use as control variables in the feedback system.Makiko YoneharaChika KatoToshi-Taka IkeshojiKoki TakeshitaHideki KyogokuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Makiko Yonehara Chika Kato Toshi-Taka Ikeshoji Koki Takeshita Hideki Kyogoku Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
description	Abstract The availability of an in-situ monitoring and feedback control system during the implementation of metal additive manufacturing technology ensures that high-quality finished parts are manufactured. This study aims to investigate the correlation between the surface texture and internal defects or density of laser-beam powder-bed fusion (LB-PBF) parts. In this study, 120 cubic specimens were fabricated via application of the LB-PBF process to the IN 718 Ni alloy powder. The density and 35 areal surface-texture parameters of manufactured specimens were determined based on the ISO 25,178–2 standard. Using a statistical method, a strong correlation was observed between the areal surface-texture parameters and density or internal defects within specimens. In particular, the areal surface-texture parameters of reduced dale height, core height, root-mean-square height, and root-mean-square gradient demonstrate a strong correlation with specimen density. Therefore, in-situ monitoring of these areal surface-texture parameters can facilitate their use as control variables in the feedback system.
format	article
author	Makiko Yonehara Chika Kato Toshi-Taka Ikeshoji Koki Takeshita Hideki Kyogoku
author_facet	Makiko Yonehara Chika Kato Toshi-Taka Ikeshoji Koki Takeshita Hideki Kyogoku
author_sort	Makiko Yonehara
title	Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
title_short	Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
title_full	Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
title_fullStr	Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
title_full_unstemmed	Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
title_sort	correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/9d10798e384e4a00a99ba507997326a2
work_keys_str_mv	AT makikoyonehara correlationbetweensurfacetextureandinternaldefectsinlaserpowderbedfusionadditivemanufacturing AT chikakato correlationbetweensurfacetextureandinternaldefectsinlaserpowderbedfusionadditivemanufacturing AT toshitakaikeshoji correlationbetweensurfacetextureandinternaldefectsinlaserpowderbedfusionadditivemanufacturing AT kokitakeshita correlationbetweensurfacetextureandinternaldefectsinlaserpowderbedfusionadditivemanufacturing AT hidekikyogoku correlationbetweensurfacetextureandinternaldefectsinlaserpowderbedfusionadditivemanufacturing
_version_	1718408032116801536

Correlation between surface texture and internal defects in laser powder-bed fusion additive manufacturing

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