Flatness optimization of micro-injection moulded parts: The case of a PMMA microfluidic component

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dc.contributor.author Marson, Silvia -
dc.contributor.author Attia, Usama M. -
dc.contributor.author Lucchetta, G. -
dc.contributor.author Wilson, A. -
dc.contributor.author Alcock, Jeffrey R. -
dc.contributor.author Allen, David M. -
dc.date.accessioned 2014-01-24T05:03:36Z
dc.date.available 2014-01-24T05:03:36Z
dc.date.issued 2011-10-20T00:00:00Z -
dc.identifier.citation S. Marson, U.M. Attia, G. Lucchetta, A. Wilson, J.R. Alcock and D M Allen, Flatness optimization of micro-injection moulded parts: The case of a PMMA microfluidic component, Journal of Micromechanics and Microengineering, Volume 21, Number 11, 2011, Paper Number 115024.
dc.identifier.issn 0960-1317 -
dc.identifier.uri http://dx.doi.org/10.1088/0960-1317/21/11/115024 -
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/8137
dc.description.abstract Micro-injection moulding (µ-IM) has attracted a lot of interest because of its potential for the production of low-cost, miniaturized parts in high-volume. Applications of this technology are, amongst others, microfluidic components for lab-on-a-chip devices and micro-optical components. In both cases, the control of the part flatness is a key aspect to maintaining the component's functionality. The objective of this work is to determine the factors affecting the flatness of a polymer part manufactured by µ-IM and to control the manufacturing process with the aim of minimizing the in-process part deformation. As a case study, a PMMA microfluidic substrate with overall dimensions of 10 mm diameter and 1 mm thickness was investigated by designing a µ-IM experiment having flatness as the experimental response. The part flatness was measured using a micro-coordinate measuring machine. Finite elements analysis was also carried out to study the optimal ejection pin configuration. The results of this work show that the control of the µ-IM process conditions can improve the flatness of the polymer part up to about 15 µm. Part flatness as low as 4 µm can be achieved by modifying the design of the ejection system according to suggested guidelines en_UK
dc.language.iso en_UK -
dc.publisher Institute of Physics Publishing; 1999 en_UK
dc.rights This is an author-created, un-copyedited version of an article accepted for publication in Journal of Micromechanics and Microengineering. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at 10.1088/0960-1317/21/11/115024
dc.title Flatness optimization of micro-injection moulded parts: The case of a PMMA microfluidic component en_UK
dc.type Article -

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