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Effect of the micromoulding process conditions on polymer flow behavior within ...
Zhiltsova, T. V.; Oliveira, M. S. A.; Ferreira, J. A.; Vasco, Joel Oliveira Correia; Pouzada, A. S.; Pontes, A. J.Fast time to market along with high level of automation and versatility made microinjection moulding, by far, a favorite technique for the mass production of microplastic components. In the microimpressions, very high shear rates develop, eventually leading to excessive shear heating and consequently to less predictable flow behaviour comparing to conventional injection moulding. In this study, the flow behavio...
A study on the performance of microinjection moulds obtained using additive man...
Vasco, Joel Oliveira CorreiaTese de doutoramento em Ciência e Engenharia de Polímeros ; The development of smaller and more effective microsystems for medical, electronic and automotive applications is driving the industry and research institutions to the development of new manufacturing processes. In the last two decades several techniques were developed complying with the requirements of micromanufacturing. Considering their specific n...
A study on the mouldability of POM microdetails in moulding blocks using microm...
Vasco, Joel Oliveira Correia; Selada, Antonio; Neves, T.; Pouzada, A. S.The integration of micro fabrication and micro-moulding techniques contributed to the massifica-tion of microsystems in several domains of activity at feasible costs. In this study the mouldability of microdetails generated by microEDM, micromilling and laser milling in microinjection moulding blocks is assessed. For that purpose, a polyacetal for precision microparts is used to evaluate how mi-crofeatures are ...
A micro-fabricação aplicada ao processo de micro-injecção
Vasco, Joel Oliveira CorreiaDissertação de Mestrado em Projecto e Fabrico de Moldes ; A miniaturização de componentes e sistemas incorporados nos mais diversos ramos de indústria, aplicações médicas e domésticas tem vindo a ser uma realidade nas duas últimas décadas. A evolução constante de técnicas de micro-fabricação e de materiais tem criado novas aplicações, mais complexas, mais eficazes e mais ambiciosas no que toca à visão do futur...
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