Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/138417
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dc.contributor.authorLe, Kim Quyen_US
dc.contributor.authorTang, Chaoen_US
dc.contributor.authorWong, Chee Howen_US
dc.date.accessioned2020-05-06T01:53:39Z-
dc.date.available2020-05-06T01:53:39Z-
dc.date.issued2018-
dc.identifier.citationLe, K.Q., Tang, C. & Wong, C.H. (2018). A study on the influence of scanning strategies on the levelness of the melt track in selective laser melting process of stainless steel powder. JOM Journal of the Minerals, Metals and Materials Society, 70(10), 2082–2087. doi:10.1007/s11837-018-2998-6en_US
dc.identifier.issn1047-4838en_US
dc.identifier.urihttps://hdl.handle.net/10356/138417-
dc.description.abstractBy using a numerical model for a selective laser melting process, this study investigates the melt pool behaviours and the resulting defects due to different scanning strategies. Two common scanning patterns were tested: sequential and boustrophedon. The study found that sequential scanning strategy leads to a non-flat printed surface, while the boustrophedon strategy produces a flat printed surface. At the beginning of the track, the molten material is pulled from the hot laser spot to the cold tail by the Marangoni force leading to an increase in the melt pool height of the sequential and alternated strategies. On the other hand, due to the deep keyhole and the high cooling rate when the laser is switched off, a recess is formed at the end of the tracks. Similar phenomena can be observed in the boustrophedon scanning strategy at the start and ending of the track.en_US
dc.language.isoenen_US
dc.relation.ispartofJOM Journal of the Minerals, Metals and Materials Societyen_US
dc.rights© 2018 The Minerals, Metals and Materials Society. All rights reserved. This paper was published by Springer in JOM Journal of the Minerals, Metals and Materials Society and is made available with permission of The Minerals, Metals and Materials Society. The final publication is available at link.springer.com via https://doi.org/10.1007/s11837-018-2998-6en_US
dc.subjectEngineering::Mechanical engineeringen_US
dc.titleA study on the influence of scanning strategies on the levelness of the melt track in selective laser melting process of stainless steel powderen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.researchSingapore Centre for 3D Printingen_US
dc.identifier.doi10.1007/s11837-018-2998-6-
dc.description.versionAccepted versionen_US
dc.identifier.scopus2-s2.0-85049656434-
dc.identifier.issue10en_US
dc.identifier.volume70en_US
dc.identifier.spage2082en_US
dc.identifier.epage2087en_US
dc.subject.keywords3D Printersen_US
dc.subject.keywordsScanningen_US
item.fulltextWith Fulltext-
item.grantfulltextopen-
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