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Development of SLM cellular structures for injection molds manufacturing

2018Journal article Restricted access
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dc.contributor.authorMalca, C.
dc.contributor.authorSantos, C.
dc.contributor.authorSena, M.
dc.contributor.authorMateus, A.
dc.date.accessioned2023-11-13T15:08:16Z
dc.date.available2023-11-13T15:08:16Z
dc.date.issued2018
dc.description.abstractUsing selective laser melting (SLM) is possible to manufacture molds with cellular internal structures with different porosity degree. Furthermore, internal geometry design can be improved as a function of the desired structural and thermal stress solicitations. In this work two types of cellular internal structures – hexagonal and cub-octahedral – were developed and manufactured using the SLM process. These topologies were generated with the purpose of creating a high degree of internal porosity and getting satisfactory results in terms of thermal and mechanical behavior whencompared with similar dimensional bulk structures. The mechanical and thermal behaviors of each cellular topology were evaluated numerically and experimentally through compression and thermal tests. From numeric and experimental results, it can be concluded that hexagonal cellular internal topology provides a higher mechanical strength when compared to the cub-octahedral cellular structure while the thermal analysis shows that cub-octahedral topology is more efficient for heat dissipation. Both cellular topologies have demonstrated, however, to be appropriate for use in injection mold structures. In addition, the use of these cellular topologies provides light weight structuring with an approximate 58% weight reduction, which represents a considerable saving of material total cost to manufacturing of an injection mold.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1016/j.stmat.2018.03.001pt_PT
dc.identifier.issn0870-8312
dc.identifier.urihttp://hdl.handle.net/10400.8/8914
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSPM - Sociedade Portuguesa de Materiaispt_PT
dc.relationCentre for Rapid and Sustainable Product Development
dc.relation.ispartofseries1;
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S2603636318300058?via%3Dihubpt_PT
dc.subjectCellular structurespt_PT
dc.subjectSLMpt_PT
dc.subjectInjection moldingpt_PT
dc.subjectFinite elementspt_PT
dc.subjectMechanical and thermal experimental behaviorspt_PT
dc.titleDevelopment of SLM cellular structures for injection molds manufacturingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04044%2F2013/PT
oaire.citation.endPage22pt_PT
oaire.citation.startPage13pt_PT
oaire.citation.titleScience and Technology of Materialspt_PT
oaire.citation.volume30pt_PT
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication9c625981-b187-4078-8cb2-d84b0d21a477
relation.isProjectOfPublication.latestForDiscovery9c625981-b187-4078-8cb2-d84b0d21a477

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