NDE in-process for metal parts fabricated using powder based additive manufacturing

dc.contributor.author Bond, Leonard
dc.contributor.author Koester, Lucas
dc.contributor.author Taheri, Hossein
dc.contributor.author Bond, Leonard
dc.contributor.department Aerospace Engineering
dc.contributor.department Mechanical Engineering
dc.contributor.department Center for Nondestructive Evaluation (CNDE)
dc.date 2019-05-17T05:51:41.000
dc.date.accessioned 2020-06-29T22:45:34Z
dc.date.available 2020-06-29T22:45:34Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2019
dc.date.issued 2019-03-18
dc.description.abstract <p>Ensuring adequate quality for additive manufactured (AM) materials presents unique metrology challenges to the on-line process measurement and nondestructive evaluation (NDE) communities. AM parts now have complex forms that are not possible using subtractive manufacturing and there are moves for their use in safety criticality components. This paper briefly reviews the status, challenges and metrology opportunities throughout the AM process from powder to finished parts. The primary focus is on new acoustic signatures that have been demonstrated to correlate process parameters with on-line measurement for monitoring and characterization during the build. In-process, quantitative characterization and monitoring of material state is anticipated to be potentially transformational in advancing adoption of metal AM parts, including offering the potential for early part rejection, part condition guided process control or even potentially in-process repair. This approach will enable more effective deployment of quality assessment metrology into the layer-by-layer material build with designed morphology. In this proof-of-concept study acoustic-based process monitoring signals were collected during the Direct Energy Deposition (DED) AM process with different process conditions to investigate and determine if variations in process conditions can be discriminated. A novel application of signal processing tools is used for the identification and use of metrics based on temporal and spectral features in acoustic signals for the purpose of in-situ monitoring and characterization of conditions in an AM process. Results show that the features identified in signatures are correlated with the process conditions and can be used for classifying different states in the process.</p>
dc.description.comments <p>This article is published as Bond, Leonard J., Lucas W. Koester, and Hossein Taheri. "NDE in-process for metal parts fabricated using powder based additive manufacturing." In <em>Proceedings of SPIE 10973,</em> <em>Smart Structures and NDE for Energy Systems and Industry 4.0,</em><em>1097302</em> (2019). DOI: <a href="http://dx.doi.org/10.1117/12.2520611" target="_blank">10.1117/12.2520611</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/142/
dc.identifier.articleid 1143
dc.identifier.contextkey 14136319
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/142
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1988
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/142/2019_BondLeonard_NDEInprocess.pdf|||Fri Jan 14 20:16:12 UTC 2022
dc.source.uri 10.1117/12.2520611
dc.subject.disciplines Aerospace Engineering
dc.subject.disciplines Manufacturing
dc.subject.disciplines Structures and Materials
dc.subject.keywords additive manufacturing
dc.subject.keywords in-process monitoring
dc.subject.keywords NDE
dc.subject.keywords acoustic signatures
dc.subject.keywords process condition
dc.title NDE in-process for metal parts fabricated using powder based additive manufacturing
dc.type article
dc.type.genre article
dspace.entity.type Publication
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