Cavity Pressure Behaviour in Micro Injection Moulding

C.A. Griffiths, S.S. Dimov, S. Scholz, H. Hirshy, Guido Tosello, Hans Nørgaard Hansen, E. Williams

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


Process monitoring of micro injection moulding (µIM) is of crusial importance to analyse the effect of different parameter settings on the process and to assess its quality. Quality factors related to cavity pressure can provide useful information directly connected with the dyanmics of the process as well as with the filling of the cavity by the polymer melt. In this paper, two parameters derived from cavity pressure over time (i.e. pressure work). The influence of four µIM parameters (melt temperature, mould temperature, injection speed, aand packing pressure) on the two pressure-related outputs has been investigated by moulding a micro fluidic component on three different polymers (PP, ABS, PC) using the design of experiment approach. Similar trends such as the effects of a higher injection speed in decreasing the pressure work and of a lower temperature in decreasing pressure rate have been found for all three materials.
Original languageEnglish
Title of host publicationProceedings of the 7. International Conference on Multi-Material Micro Manufacture
PublisherResearch Publishing Services
Publication date2010
ISBN (Print)978-981-08-6555-9
Publication statusPublished - 2010
Event7th International Conference on Multi-Material Micro Manufacture - Bourg en Bresse and Oyonnax, France
Duration: 17 Nov 201019 Nov 2010
Conference number: 7


Conference7th International Conference on Multi-Material Micro Manufacture
CityBourg en Bresse and Oyonnax


  • Micro injection moulding
  • Cavity injection pressure
  • Process monitoring

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