Material behaviourPart mass and shrinkage in micro injection moulding: Statistical based optimisation using multiple quality criteria

PurposeThe aim of this paper is to optimise process conditions in micro injection moulding (μ−IM) to minimise shrinkage whilst maximising part mass.MethodA Design of Experiment (DoE) approach was implemented for studying the effect of five processing parameters on shrinkage and part mass. A multiple quality criteria based analysis was used to optimise the process.ResultsSignificant factors were found for shrinkage and part mass.ConclusionsThe multiple quality criteria could be optimized, and this optimization validated experimentally.