Effect of Process Parameters and High-Temperature Preheating on Residual Stress and Relative Density of Ti6Al4V Processed by Selective Laser Melting

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dc.contributor.authorMalý, Martincs
dc.contributor.authorHöller, Christiancs
dc.contributor.authorSkalon, Mateuszcs
dc.contributor.authorMeier, Benjamincs
dc.contributor.authorKoutný, Danielcs
dc.contributor.authorPichler, Rudolfcs
dc.contributor.authorSommitsch, Christofcs
dc.contributor.authorPaloušek, Davidcs
dc.coverage.issue6cs
dc.coverage.volume12cs
dc.date.accessioned2020-08-04T11:03:02Z
dc.date.available2020-08-04T11:03:02Z
dc.date.issued2019-03-20cs
dc.description.abstractThe aim of this study is to observe the effect of process parameters on residual stresses and relative density of Ti6Al4V samples produced by Selective Laser Melting. The investigated parameters were hatch laser power, hatch laser velocity, border laser velocity, high-temperature preheating and time delay. Residual stresses were evaluated by the bridge curvature method and relative density by the optical method. The effect of the observed process parameters was estimated by the design of experiment and surface response methods. It was found that for an effective residual stress reduction, the high preheating temperature was the most significant parameter. High preheating temperature also increased the relative density but caused changes in the chemical composition of Ti6Al4V unmelted powder. Chemical analysis proved that after one build job with high preheating temperature, oxygen and hydrogen content exceeded the ASTM B348 limits for Grade 5 titanium.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2019, vol. 12, issue 6, p. 1-13.en
dc.identifier.doi10.3390/ma12060930cs
dc.identifier.issn1996-1944cs
dc.identifier.other156298cs
dc.identifier.urihttp://hdl.handle.net/11012/138396
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/12/6/930cs
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.subjectTi6Al4Ven
dc.subjectresidual stressen
dc.subjectdeformationen
dc.subjectpreheatingen
dc.subjectrelative densityen
dc.subjectpowder degradationen
dc.titleEffect of Process Parameters and High-Temperature Preheating on Residual Stress and Relative Density of Ti6Al4V Processed by Selective Laser Meltingen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-156298en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:03:02en
sync.item.modts2020.08.04 12:35:56en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
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