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Regulation strategy for Directed Energy Deposition-Laser Powder process based on working distance modulation: Modelling and application to thin wall configurations

dc.rights.licenseopenen_US
hal.structure.identifierESTIA INSTITUTE OF TECHNOLOGY
dc.contributor.authorLEROY-DUBIEF, Cecile
hal.structure.identifierESTIA INSTITUTE OF TECHNOLOGY
dc.contributor.authorPOULHAON, Fabien
hal.structure.identifierESTIA INSTITUTE OF TECHNOLOGY
dc.contributor.authorJOYOT, Pierre
ORCID: 0000-0002-6608-7343
IDREF: 085496057
dc.date.accessioned2023-10-05T12:12:08Z
dc.date.available2023-10-05T12:12:08Z
dc.date.issued2023-10-27
dc.identifier.issn1526-6125en_US
dc.identifier.urioai:crossref.org:10.1016/j.jmapro.2023.09.008
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/184336
dc.description.abstractEnAdditive manufacturing introduces a new paradigm for the manufacture of metal parts. Many parameters are involved in the Directed Energy Deposition-Laser Powder (DED-LP) process. However, two related parameters, working distance and z-increment, remain largely unstudied despite having a major role in the part final geometry. In order to better understand the evolution of these parameters during the multi-layer deposition, a semi-analytical model is developed to evaluate the final height of the part with a moderate calculation time. The powder spray is modelled and calibrated using high-speed imaging. The first part of the experimental campaign consists in the deposition of 12 single-bead walls with an identical number of layers, but varying manufacturing configurations. The final heights of these walls range from 2.96 mm to 5.79 mm depending on the parameters values. The modelled and experimental results are reasonably matched except for an initial working distance of 2.5 mm where the carrier gas is unstable. For the second part of the experiment, an instrumented thin wall is manufactured while clamped only at one end in order to obtain a nozzle-to-workpiece distance variation over time. The last layer of this wall is almost horizontal thanks to a self-regulation phenomenon in accordance with the semi-analytical model. These two experiments and the model show that the DED-LP process exhibits either a self-regulating or diverging regime function of the manufacturing configuration. These phenomena are responsible for the non-uniformity of the layer heights. The working distance and the z-increment are parameters that allow to optimise the manufacturing process by increasing the powder capture efficiency leading to a reduction in the number of deposited layers and manufacturing time.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enRegulation strategy for Directed Energy Deposition-Laser Powder process based on working distance modulation: Modelling and application to thin wall configurations
dc.title.alternativeJ Manuf Processen_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.jmapro.2023.09.008en_US
dc.subject.halSciences de l'ingénieur [physics]en_US
bordeaux.journalJournal of Manufacturing Processesen_US
bordeaux.page307-321en_US
bordeaux.volume104en_US
bordeaux.hal.laboratoriesESTIA - Rechercheen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04229675
hal.version1
hal.date.transferred2023-10-05T12:12:10Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Manufacturing%20Processes&rft.date=2023-10-27&rft.volume=104&rft.spage=307-321&rft.epage=307-321&rft.eissn=1526-6125&rft.issn=1526-6125&rft.au=LEROY-DUBIEF,%20Cecile&POULHAON,%20Fabien&JOYOT,%20Pierre&rft.genre=article


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