Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/26113

TítuloA study on microinjection moulding using moulding blocks by additive micromanufacturing
Autor(es)Vasco, Joel Oliveira Correia
Pouzada, A. S.
Palavras-chaveMicroinjection
Micromanufacturing
Additive technologies
Data2013
EditoraSpringer
RevistaInternational journal of advanced manufacturing technology
Resumo(s)Microinjection moulding is one of the most efficient replication methods for polymeric components in microsystems. The manufacturing of moulding blocks for complex geometries is resorting increasingly to the techniques of rapid prototyping. This development on the use of additive microtechnologies can promote the massification of microsystems within a shorter tooling development cycle time. However, the microinjection moulding process itself has mechanical and thermal demands that must be addressed and require specific consideration of the selection of the tool material. This constrains the selection of the best-suited additive manufacturing process. The current state of the art of additive manufacturing technologies at the micrometric scale favours laser sources to process layer by layer the media contained in a vat. The media type, the laser power and the laser spot size are parameters that can influence the replication tool tolerances and physical properties. This work explores the possibilities of two additive technology tooling approaches for microinjection moulding, using different materials. The research parameters included replication detailing onto the plastic part, surface roughness, microtool integrity and wear. The evaluation of these parameters was carried out using both optical and hybrid microscopy, a laser perthometer as a non-contact solution for surface roughness evaluation, scanning electron microscopy and X-ray spectroscopy. The results of this research work showed that the processed material and technology play an important role both on surface quality and tool life, enabling criteria definition for technology selection.
Tipoarticle
DescriçãoPublished online : 02 August 2013
URIhttp://hdl.handle.net/1822/26113
DOI10.1007/s00170-013-5165-9
ISSN0268-3768
1433-3015
Versão da editoraThe original publication is available at http://link.springer.com/article/10.1007/s00170-013-5165-9#
Arbitragem científicayes
AcessorestrictedAccess
Aparece nas coleções:IPC - Artigos em revistas científicas internacionais com arbitragem

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
10.1007_s00170-013-5165-9.pdfDocumento principal837,52 kBAdobe PDFVer/Abrir  Solicitar cópia ao autor!

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu Currículo DeGóis