Influence of Scanning Strategies on Processing of Aluminum Alloy EN AW 2618 Using Selective Laser Melting

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dc.contributor.authorKoutný, Danielcs
dc.contributor.authorPaloušek, Davidcs
dc.contributor.authorPantělejev, Liborcs
dc.contributor.authorTěšický, Lukášcs
dc.contributor.authorKaiser, Jozefcs
dc.coverage.issue2cs
dc.coverage.volume11cs
dc.date.issued2018-02-14cs
dc.description.abstractThis paper deals with various selective laser melting (SLM) processing strategies for aluminum 2618 powder in order to get material densities and properties close to conventionally-produced, high-strength 2618 alloy. To evaluate the influence of laser scanning strategies on the resulting porosity and mechanical properties a row of experiments was done. Three types of samples were used: single-track welds, bulk samples and samples for tensile testing. Single-track welds were used to find the appropriate processing parameters for achieving continuous and well-shaped welds. The bulk samples were built with different scanning strategies with the aim of reaching a low relative porosity of the material. The combination of the chessboard strategy with a 2 × 2 mm field size fabricated with an out-in spiral order was found to eliminate a major lack of fusion defects. However, small cracks in the material structure were found over the complete range of tested parameters. The decisive criteria was the elimination of small cracks that drastically reduced mechanical properties. Reduction of the thermal gradient using support structures or fabrication under elevated temperatures shows a promising approach to eliminating the cracks. Mechanical properties of samples produced by SLM were compared with the properties of extruded material. The results showed that the SLM-processed 2618 alloy could only reach one half of the yield strength and tensile strength of extruded material. This is mainly due to the occurrence of small cracks in the structure of the built material.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2018, vol. 11, issue 2, p. 1-18.en
dc.identifier.doi10.3390/ma11020298cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0002-5384-8668cs
dc.identifier.orcid0000-0003-4668-8763cs
dc.identifier.orcid0000-0002-7729-4305cs
dc.identifier.orcid0000-0002-7397-125Xcs
dc.identifier.other145870cs
dc.identifier.researcheridF-8576-2012cs
dc.identifier.researcheridE-9044-2012cs
dc.identifier.researcheridI-9479-2016cs
dc.identifier.researcheridD-6800-2012cs
dc.identifier.scopus23988874000cs
dc.identifier.scopus37089205700cs
dc.identifier.scopus35783365900cs
dc.identifier.scopus7402184758cs
dc.identifier.urihttp://hdl.handle.net/11012/70890
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttp://www.mdpi.com/1996-1944/11/2/298cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectselective laser meltingen
dc.subjectaluminum alloyen
dc.subjectEN AW 2618en
dc.subjectscanning strategyen
dc.subjectrelative densityen
dc.subjectmechanical propertiesen
dc.titleInfluence of Scanning Strategies on Processing of Aluminum Alloy EN AW 2618 Using Selective Laser Meltingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-145870en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:48:30en
sync.item.modts2025.01.17 15:15:57en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
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