Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part

 X-ray computed tomography (CT) has gained significant traction across various industrial sectors as a dimensional metrology tool, providing holistic characterizations and enhancing the development of new industrial products. However, despite its potential, dimensional CT scanning can be relatively...

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Main Authors: Thiago Linhares Fernandes, Miroslav Yosifov, Maryam Bahrkazemi, Filippo Zanini, Wim Dewulf, Simone Carmignato
Format: Article
Language:deu
Published: NDT.net 2025-02-01
Series:e-Journal of Nondestructive Testing
Online Access:https://www.ndt.net/search/docs.php3?id=30733
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author Thiago Linhares Fernandes
Miroslav Yosifov
Maryam Bahrkazemi
Filippo Zanini
Wim Dewulf
Simone Carmignato
author_facet Thiago Linhares Fernandes
Miroslav Yosifov
Maryam Bahrkazemi
Filippo Zanini
Wim Dewulf
Simone Carmignato
author_sort Thiago Linhares Fernandes
collection DOAJ
description  X-ray computed tomography (CT) has gained significant traction across various industrial sectors as a dimensional metrology tool, providing holistic characterizations and enhancing the development of new industrial products. However, despite its potential, dimensional CT scanning can be relatively slow, often hindering routine adoption for many applications. This study investigates strategies to optimize CT measurement speed while maintaining measurement accuracy through an experimental approach that includes fast CT scanning configurations, fast CT simulation-based technique, and the adoption of an iterative reconstruction method. Using an additively manufactured metal part as a case study, the research evaluates measurement deviations across different geometrical features. Results indicate promising performance of fast CT scanning for dimensional measurements, as well as the feasibility of using a digital representation to support a fast CT measurement process. Additionally, the constraint split Bregman iterative reconstruction method combined with total variation demonstrates significant improvements over traditional Feldkamp, Davis, Kress reconstruction, achieving up to 90% accuracy enhancement for external features with limited X-ray projections. These findings provide valuable insights for implementing efficient CT metrology in contemporary industry where both speed and accuracy are essential. 
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institution Kabale University
issn 1435-4934
language deu
publishDate 2025-02-01
publisher NDT.net
record_format Article
series e-Journal of Nondestructive Testing
spelling doaj-art-b8a9152ccf3d4897861b5c6d4aebaa912025-02-06T10:48:19ZdeuNDT.nete-Journal of Nondestructive Testing1435-49342025-02-0130210.58286/30733Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal partThiago Linhares FernandesMiroslav Yosifovhttps://orcid.org/0000-0002-6318-4869Maryam BahrkazemiFilippo Zaninihttps://orcid.org/0000-0002-4465-1230Wim DewulfSimone Carmignatohttps://orcid.org/0000-0001-6135-6834  X-ray computed tomography (CT) has gained significant traction across various industrial sectors as a dimensional metrology tool, providing holistic characterizations and enhancing the development of new industrial products. However, despite its potential, dimensional CT scanning can be relatively slow, often hindering routine adoption for many applications. This study investigates strategies to optimize CT measurement speed while maintaining measurement accuracy through an experimental approach that includes fast CT scanning configurations, fast CT simulation-based technique, and the adoption of an iterative reconstruction method. Using an additively manufactured metal part as a case study, the research evaluates measurement deviations across different geometrical features. Results indicate promising performance of fast CT scanning for dimensional measurements, as well as the feasibility of using a digital representation to support a fast CT measurement process. Additionally, the constraint split Bregman iterative reconstruction method combined with total variation demonstrates significant improvements over traditional Feldkamp, Davis, Kress reconstruction, achieving up to 90% accuracy enhancement for external features with limited X-ray projections. These findings provide valuable insights for implementing efficient CT metrology in contemporary industry where both speed and accuracy are essential.  https://www.ndt.net/search/docs.php3?id=30733
spellingShingle Thiago Linhares Fernandes
Miroslav Yosifov
Maryam Bahrkazemi
Filippo Zanini
Wim Dewulf
Simone Carmignato
Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
e-Journal of Nondestructive Testing
title Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
title_full Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
title_fullStr Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
title_full_unstemmed Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
title_short Accuracy of fast CT dimensional measurements: a case study on an additively manufactured metal part
title_sort accuracy of fast ct dimensional measurements a case study on an additively manufactured metal part
url https://www.ndt.net/search/docs.php3?id=30733
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AT maryambahrkazemi accuracyoffastctdimensionalmeasurementsacasestudyonanadditivelymanufacturedmetalpart
AT filippozanini accuracyoffastctdimensionalmeasurementsacasestudyonanadditivelymanufacturedmetalpart
AT wimdewulf accuracyoffastctdimensionalmeasurementsacasestudyonanadditivelymanufacturedmetalpart
AT simonecarmignato accuracyoffastctdimensionalmeasurementsacasestudyonanadditivelymanufacturedmetalpart