Effect of process parameters on residual stresses, distortions, and porosity in selective laser melting of maraging steel 300

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dc.contributor.authorMugwagwa, Lamecken_ZA
dc.contributor.authorYadroitsev, Igoren_ZA
dc.contributor.authorMatope, Stephenen_ZA
dc.date.accessioned2021-10-11T08:07:49Z
dc.date.available2021-10-11T08:07:49Z
dc.date.issued2019
dc.descriptionCITATION: Mugwagwa, L., Yadroitsev, I. & Matope, S. 2019. Effect of process parameters on residual stresses, distortions, and porosity in selective laser melting of maraging steel 300. Metals, 9(10):1042, doi:10.3390/met9101042.
dc.descriptionThe original publication is available at https://www.mdpi.com
dc.description.abstractENGLISH ABSTRACT: Selective laser melting (SLM) is one of the most well-known additive manufacturing methods available for the fabrication of functional parts from metal powders. Although SLM is now an established metal additive manufacturing technique, its widespread application in industry is still hindered by inherent phenomena, one of which is high residual stresses. Some of the effects of residual stresses–such as warping and thermal stress-related cracking–cannot be corrected by post processing. Therefore, establishing input process parameter combinations that result in the least residual stress magnitudes and related distortions and/or cracking is critical. This paper presents the influence of laser power, scanning speed, and layer thickness on residual stresses, distortions and achievable density for maraging steel 300 steel parts in order to establish the most optimum input parameter combinations. An analysis of the interdependence between process outcomes shows that high residual stress magnitudes lead to high dimensional distortions in the finished parts, whilst porous parts suffer relatively lower residual stresses and associated distortions.en_ZA
dc.description.urihttps://www.mdpi.com/2075-4701/9/10/1042/htm
dc.description.versionPublisher's version
dc.format.extent16 pagesen_ZA
dc.identifier.citationMugwagwa, L., Yadroitsev, I. & Matope, S. 2019. Effect of process parameters on residual stresses, distortions, and porosity in selective laser melting of maraging steel 300. Metals, 9(10):1042, doi:10.3390/met9101042
dc.identifier.issn2075-4701 (online)
dc.identifier.otherdoi:10.3390/met9101042
dc.identifier.urihttp://hdl.handle.net/10019.1/123195
dc.language.isoen_ZAen_ZA
dc.publisherMDPIen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectSelective laser meltingen_ZA
dc.subjectResidual stressesen_ZA
dc.subjectPorosityen_ZA
dc.titleEffect of process parameters on residual stresses, distortions, and porosity in selective laser melting of maraging steel 300en_ZA
dc.typeArticleen_ZA
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