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Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-29348
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dc.contributor.authorKavas, Barış-
dc.contributor.authorBalta, Efe C.-
dc.contributor.authorTucker, Michael-
dc.contributor.authorRupenyan, Alisa-
dc.contributor.authorLygeros, John-
dc.contributor.authorBambach, Markus-
dc.date.accessioned2023-12-08T15:02:04Z-
dc.date.available2023-12-08T15:02:04Z-
dc.date.issued2023-10-
dc.identifier.issn2214-7810de_CH
dc.identifier.issn2214-8604de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/29348-
dc.descriptionThe preprint version of this article was published on SSRN: https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4496744.de_CH
dc.description.abstractIn laser powder bed fusion (LPBF), part quality and process conditions are highly dependent on the interlayer temperature (ILT) of the exposure surface of printed parts. State-of-the-art closed-loop control applications do not stabilize ILT, which has a decisive influence on the resulting part properties. This paper presents a closed-loop control strategy for LPBF that stabilizes the ILT. The thermal balance is defined with respect to exposure area change in overhanging parts and a control strategy is proposed to maintain the thermal balance by actuating energy input. The proposed control strategy uses an off-axis thermal camera for interlayer temperature acquisition to update the laser power layer to layer. An online optimization-based controller that leverages the repetitive nature of the LPBF process is implemented for the task. The developed controller is validated by experiments with different overhanging geometries. Successful ILT stabilization for various overhanging angles shows the robustness of the controller for an extended number of layers. However, modulation of laser power alone is shown to be insufficient to maintain the ILT within the stable processing window due to excessive heat accumulation in the long term. Nevertheless, the results of this study demonstrate the feasibility of ILT stabilization via of closed-loop control in LPBF and the potential for significant improvements in stabilizing the properties of the printed parts.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofAdditive Manufacturingde_CH
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/de_CH
dc.subjectLaser powder bed fusionde_CH
dc.subjectClosed-loop feedback controlde_CH
dc.subjectLayer-to-layer temperature controlde_CH
dc.subjectInterlayer temperature stabilizationde_CH
dc.subject.ddc670: Industrielle und handwerkliche Fertigungde_CH
dc.titleLayer-to-layer closed-loop feedback control application for inter-layer temperature stabilization in laser powder bed fusionde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitCentre for Artificial Intelligence (CAI)de_CH
dc.identifier.doi10.1016/j.addma.2023.103847de_CH
dc.identifier.doi10.21256/zhaw-29348-
zhaw.funding.euNode_CH
zhaw.issue103847de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statusacceptedVersionde_CH
zhaw.volume78de_CH
zhaw.embargo.end2025-11-08de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.snf180545de_CH
zhaw.webfeedAdditive Manufacturingde_CH
zhaw.webfeedIndustrial Artificial Intelligencede_CH
zhaw.webfeedIndustrie 4.0de_CH
zhaw.webfeedZHAW digitalde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
Appears in collections:Publikationen School of Engineering

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Kavas, B., Balta, E. C., Tucker, M., Rupenyan, A., Lygeros, J., & Bambach, M. (2023). Layer-to-layer closed-loop feedback control application for inter-layer temperature stabilization in laser powder bed fusion. Additive Manufacturing, 78(103847). https://doi.org/10.1016/j.addma.2023.103847
Kavas, B. et al. (2023) ‘Layer-to-layer closed-loop feedback control application for inter-layer temperature stabilization in laser powder bed fusion’, Additive Manufacturing, 78(103847). Available at: https://doi.org/10.1016/j.addma.2023.103847.
B. Kavas, E. C. Balta, M. Tucker, A. Rupenyan, J. Lygeros, and M. Bambach, “Layer-to-layer closed-loop feedback control application for inter-layer temperature stabilization in laser powder bed fusion,” Additive Manufacturing, vol. 78, no. 103847, Oct. 2023, doi: 10.1016/j.addma.2023.103847.
KAVAS, Barış, Efe C. BALTA, Michael TUCKER, Alisa RUPENYAN, John LYGEROS und Markus BAMBACH, 2023. Layer-to-layer closed-loop feedback control application for inter-layer temperature stabilization in laser powder bed fusion. Additive Manufacturing. Oktober 2023. Bd. 78, Nr. 103847. DOI 10.1016/j.addma.2023.103847
Kavas, Barış, Efe C. Balta, Michael Tucker, Alisa Rupenyan, John Lygeros, and Markus Bambach. 2023. “Layer-to-Layer Closed-Loop Feedback Control Application for Inter-Layer Temperature Stabilization in Laser Powder Bed Fusion.” Additive Manufacturing 78 (103847). https://doi.org/10.1016/j.addma.2023.103847.
Kavas, Barış, et al. “Layer-to-Layer Closed-Loop Feedback Control Application for Inter-Layer Temperature Stabilization in Laser Powder Bed Fusion.” Additive Manufacturing, vol. 78, no. 103847, Oct. 2023, https://doi.org/10.1016/j.addma.2023.103847.


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