Improvement of the sprue system design of an injection mould for optical disc substrates using computer aided design and simulation Online publication date: Tue, 30-Sep-2014
by Dimitar Trifonov, Yuli Toshev
International Journal of Computer Aided Engineering and Technology (IJCAET), Vol. 3, No. 3/4, 2011
Abstract: The sprue system design of the optical disc moulds occupy a central place in the production process. Two basic types of the sprue system design and their modified variants are considered in the process of mould cavity filling. For the purpose of investigations 3D CAD models of polymer substrate and the sprue systems are developed. Some of the sprue system parameters are defined as variable parameters and they are combined with three different values of substrate thickness and processing conditions in the process of mould filling simulation. A series of the variable parameters is obtained for all the sprue system types with the help of iterative steps within the frame of the simulation code. The sprue systems proposed and the results obtained can be used both for experimental work and for mass-production of polymer substrates for optical discs (CD-ROM) and also for CD microfluidics, BioMEMS and lab-on-a-CD.
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