Standard method for microCT-based additive manufacturing quality control 1 : porosity analysis

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dc.contributor.authorDu Plessis, Antonen_ZA
dc.contributor.authorSperling, Philipen_ZA
dc.contributor.authorBeerlink, Andreen_ZA
dc.contributor.authorTshabalala, Leratoen_ZA
dc.contributor.authorHoosain, Shaiken_ZA
dc.contributor.authorMathe, Ntombien_ZA
dc.contributor.authorLe Roux, Stephan G.en_ZA
dc.date.accessioned2019-10-17T12:53:07Z
dc.date.available2019-10-17T12:53:07Z
dc.date.issued2018
dc.descriptionCITATION: Du Plessis, A., et al. 2018. Standard method for microCT-based additive manufacturing quality control 1 : porosity analysis. MethodsX, 5:1102-1110, doi:10.1016/j.mex.2018.09.005.
dc.descriptionThe original publication is available at https://www.sciencedirect.com
dc.description.abstractENGLISH ABSTRACT: MicroCT is a well-established technique that is used to analyze the interior of objects non-destructively, and it is especially useful for void or porosity analysis. Besides its widespread use, few standards exist and none for additive manufacturing as yet. This is due to the inherent differences in part design, sizes and geometries, which results in different scan resolutions and qualities. This makes direct comparison between different scans of additively manufactured parts almost impossible. In addition, different image analysis methodologies can produce different results. In this method paper, we present a simplified 10 mm cube-shaped coupon sample as a standard size for detailed analysis of porosity using microCT, and a simplified workflow for obtaining porosity information. The aim is to be able to obtain directly comparable porosity information from different samples from the same AM system and even from different AM systems, and to potentially correlate detailed morphologies of the pores or voids with improper process parameters. The method is applied to two examples of different characteristic types of voids in AM: sub-surface lack of fusion due to improper contour scanning, and tree-like pores growing in the build direction. This standardized method demonstrates the capability for microCT to not only quantify porosity, but also identify void types which can be used to improve AM process optimization.en_ZA
dc.description.urihttps://www.sciencedirect.com/science/article/pii/S221501611830147X#upi0005
dc.description.versionPublisher's version
dc.format.extent9 pagesen_ZA
dc.identifier.citationDu Plessis, A., et al. 2018. Standard method for microCT-based additive manufacturing quality control 1 : porosity analysis. MethodsX, 5:1102-1110, doi:10.1016/j.mex.2018.09.005
dc.identifier.issn2215-0161 (online)
dc.identifier.otherdoi:10.1016/j.mex.2018.09.005
dc.identifier.urihttp://hdl.handle.net/10019.1/106662
dc.language.isoen_ZAen_ZA
dc.publisherElsevier
dc.rights.holderAuthors retain copyright
dc.subjectAdditive manufacturing -- Quality controlen_ZA
dc.subjectPorosity -- Analysisen_ZA
dc.subjectTomographyen_ZA
dc.titleStandard method for microCT-based additive manufacturing quality control 1 : porosity analysisen_ZA
dc.typeArticleen_ZA
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