Process parameter optimization for enhanced mechanical performance in PBF-LB/M of AISI 316L using constant energy density

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dc.contributor.authorAchiaga, Beatriz
dc.contributor.authorCastaño, Blanca
dc.contributor.authorGómez Lendinez, Daniel
dc.contributor.authorBarea, Rafael
dc.contributor.authorPedrolli, Lorenzo
dc.contributor.authorLópez García, Alejandro
dc.date.accessioned2026-08-06T06:52:08Z
dc.date.available2026-08-06T06:52:08Z
dc.date.issued2026-06-29
dc.date.updated2026-08-06T06:52:08Z
dc.description.abstractLaser powder bed fusion (PBF-LB/M) is an additive manufacturing technology (AM) for producing metal components with complex geometries. The mechanical properties of these components play an important role in their performance and functionality. This work has found the process parameters to achieve the optimal properties of AISI 316L stainless steel using SamyLabs Alba 300 system. A Design of Experiments approach was employed under a constant volumetric energy density constraint to identify optimal parameter combinations (laser power, laser frequency, scanning speed and hatching distance). Tensile testing and metallographic analysis show that even at fixed energy input, the material’s properties were still affected by the process parameters. Specifically, higher laser frequencies and reduced scanning speeds, combined with increased hatching distances, led to improved mechanical performance with a significant positive impact on tensile strength and hardness of the manufactured parts. The results demonstrate that laser frequency plays a critical role in melt pool dynamics. Optimal settings derived from this study provide a reliable guideline for enhancing part quality in PBF-LB/M processes and can be extrapolated to similar AM systems.en
dc.description.sponsorshipThis study received financial support from the Basque Government through the Research Group program IT1507-22en
dc.identifier.citationAchiaga, B., Castaño, B., Gomez-Lendinez, D., Barea, R., Pedrolli, L., & Lopez, A. (2026). Process parameter optimization for enhanced mechanical performance in PBF-LB/M of AISI 316L using constant energy density. Progress in Additive Manufacturing, 11(7), 6645-6660. https://doi.org/10.1007/S40964-026-01659-Y
dc.identifier.doi10.1007/S40964-026-01659-Y
dc.identifier.eissn2363-9520
dc.identifier.issn2363-9512
dc.identifier.urihttps://hdl.handle.net/20.500.14454/6473
dc.language.isoeng
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.subject.otherAISI 316L stainless steel
dc.subject.otherKeyhole Number
dc.subject.otherMechanical properties
dc.subject.otherPBF-LB/M
dc.subject.otherProcess parameter optimization
dc.subject.otherVolumetric energy density (VED)
dc.titleProcess parameter optimization for enhanced mechanical performance in PBF-LB/M of AISI 316L using constant energy densityen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.endPage6660
oaire.citation.issue7
oaire.citation.startPage6645
oaire.citation.titleProgress in Additive Manufacturing
oaire.citation.volume11
oaire.licenseConditionhttps://creativecommons.org/licenses/by/4.0/
oaire.versionVoR
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