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Ultrafast X-ray imaging of laser–metal additive manufacturing processes

The high-speed synchrotron X-ray imaging technique was synchronized with a custom-built laser-melting setup to capture the dynamics of laser powder-bed fusion processes in situ. Various significant phenomena, including vapor-depression and melt-pool dynamics and powder-spatter ejection, were capture...

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Detalles Bibliográficos
Autores principales: Parab, Niranjan D., Zhao, Cang, Cunningham, Ross, Escano, Luis I., Fezzaa, Kamel, Everhart, Wes, Rollett, Anthony D., Chen, Lianyi, Sun, Tao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6544194/
https://www.ncbi.nlm.nih.gov/pubmed/30179187
http://dx.doi.org/10.1107/S1600577518009554
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author Parab, Niranjan D.
Zhao, Cang
Cunningham, Ross
Escano, Luis I.
Fezzaa, Kamel
Everhart, Wes
Rollett, Anthony D.
Chen, Lianyi
Sun, Tao
author_facet Parab, Niranjan D.
Zhao, Cang
Cunningham, Ross
Escano, Luis I.
Fezzaa, Kamel
Everhart, Wes
Rollett, Anthony D.
Chen, Lianyi
Sun, Tao
author_sort Parab, Niranjan D.
collection PubMed
description The high-speed synchrotron X-ray imaging technique was synchronized with a custom-built laser-melting setup to capture the dynamics of laser powder-bed fusion processes in situ. Various significant phenomena, including vapor-depression and melt-pool dynamics and powder-spatter ejection, were captured with high spatial and temporal resolution. Imaging frame rates of up to 10 MHz were used to capture the rapid changes in these highly dynamic phenomena. At the same time, relatively slow frame rates were employed to capture large-scale changes during the process. This experimental platform will be vital in the further understanding of laser additive manufacturing processes and will be particularly helpful in guiding efforts to reduce or eliminate microstructural defects in additively manufactured parts.
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spelling pubmed-65441942019-06-14 Ultrafast X-ray imaging of laser–metal additive manufacturing processes Parab, Niranjan D. Zhao, Cang Cunningham, Ross Escano, Luis I. Fezzaa, Kamel Everhart, Wes Rollett, Anthony D. Chen, Lianyi Sun, Tao J Synchrotron Radiat Research Papers The high-speed synchrotron X-ray imaging technique was synchronized with a custom-built laser-melting setup to capture the dynamics of laser powder-bed fusion processes in situ. Various significant phenomena, including vapor-depression and melt-pool dynamics and powder-spatter ejection, were captured with high spatial and temporal resolution. Imaging frame rates of up to 10 MHz were used to capture the rapid changes in these highly dynamic phenomena. At the same time, relatively slow frame rates were employed to capture large-scale changes during the process. This experimental platform will be vital in the further understanding of laser additive manufacturing processes and will be particularly helpful in guiding efforts to reduce or eliminate microstructural defects in additively manufactured parts. International Union of Crystallography 2018-08-14 /pmc/articles/PMC6544194/ /pubmed/30179187 http://dx.doi.org/10.1107/S1600577518009554 Text en © Niranjan D. Parab et al. 2018 http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/4.0/
spellingShingle Research Papers
Parab, Niranjan D.
Zhao, Cang
Cunningham, Ross
Escano, Luis I.
Fezzaa, Kamel
Everhart, Wes
Rollett, Anthony D.
Chen, Lianyi
Sun, Tao
Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title_full Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title_fullStr Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title_full_unstemmed Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title_short Ultrafast X-ray imaging of laser–metal additive manufacturing processes
title_sort ultrafast x-ray imaging of laser–metal additive manufacturing processes
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6544194/
https://www.ncbi.nlm.nih.gov/pubmed/30179187
http://dx.doi.org/10.1107/S1600577518009554
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