Measuring uncertainty applied to design of experiment analysis: a micro injection moulding case study

Abstract

none5The potential of micro systems and the number of micro products being developed increases constantly. Micro engineering is one of the current main technology trends and processes for the replication on a large scale are required. The injection moulding of microstructures (micro injection moulding process) represents a key technology for the economic production of medium and large series of micro structured mouldings and the assembly of micro-systems. To enable its mass-fabrication capability, the micro injection moulding process needs to be analysed, the role of the different process parameters understood and finally an optimization has to be carried out. In this paper, a full factorial 4-factors 2-levels design of experiments (DOE) has been carried out on miniaturized plastic parts produced by injection moulding. Process parameters analysis have been analysed in order to optimize the process. A new method has been developed to be able to investigate the filling of such small parts. For an effective process optimization, reliability of the results from the DOE and therefore of the measurements are indispensable requisites to be fulfilled. Therefore, the measuring uncertainty of the dimensional measurements carried out has been implemented into the DOE analysis in order to validate the results.- ISSN:noneTOSELLO G; GAVA A; HANSEN H.N; LUCCHETTA G.; GUARISE MTosello, G; Gava, A; HANSEN H., N; Lucchetta, Giovanni; Guarise, M

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