Part mass and shrinkage in micro injection moulding: Statistical based optimisation using multiple quality criteria.

Abstract: Purpose: The aim of this paper is to optimise process conditions in micro injection moulding (μ−IM) to minimise shrinkage whilst maximising part mass. Method: A 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. Results: Significant factors were found for shrinkage and part mass. Conclusions: The multiple quality criteria could be optimized, and this optimization validated experimentally. [Copyright &y& Elsevier]