Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/69497
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dc.creatorP. V. Vasconcelos
dc.creatorF. Jorge Lino
dc.creatorR. J. Neto
dc.date.accessioned2019-02-06T14:23:05Z-
dc.date.available2019-02-06T14:23:05Z-
dc.date.issued2004
dc.identifier.othersigarra:61646
dc.identifier.urihttps://repositorio-aberto.up.pt/handle/10216/69497-
dc.description.abstractMetallic powders are typically mixed withepoxy and polyurethane resin systems to improvethe moulds thermal conductivity. The criticalproblem to produce these mixtures for RapidTooling applications is the difficulty of eliminatingthe entrapped air, introduced during theprocessing due to the high viscosity of the mixture,especially in the presence of high aluminiumconcentrations. When air bubbles are retained inthe resin/model interface, superficial defects aregenerated which render inoperative the RapidTooling moulds, and consequently the advantagesof these new technologies.In this work, a specific methodology ispresented to reduce the porosity level, not only inthese typical mixtures, but also in hybrid ones,manufactured with aluminium particles and milledfibres, which have a even worse tendency toproduce pores in the composite interface.
dc.language.isoeng
dc.relation.ispartofRPD 2004
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectEngenharia mecânica, Engenharia mecânica
dc.subjectMechanical engineering, Mechanical engineering
dc.titleImportance of the vacuum in rapid tooling of polymeric-based moulds
dc.typeArtigo em Livro de Atas de Conferência Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.subject.fosCiências da engenharia e tecnologias::Engenharia mecânica
dc.subject.fosEngineering and technology::Mechanical engineering
Appears in Collections:FEUP - Artigo em Livro de Atas de Conferência Internacional

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