Abstract
ABSTRACT ：Injection molding is one of the widely used polymer processing operations. It is being used for not onlyconventional injection molding but gas injection molding, water injection molding, and injection compression molding. Injectioncompression molding involves injection and compression operation, and it gives uniform physical property and high dimen-sional quality of product. In this study, injection compression characteristics for various product shapes have been investigatedby computer simulation. Product containing side wall showed not much effective in injection compression molding since wall thickness direction was perpendicular to the compression direction. Uniform and low shrinkage was observed in injectioncompression molding comparing conventional injection molding. Subsequently injection compression molding can be used for molding precise product. Optimal injection compression molding condition was obtained using design of experimentfor plastic lens and the results were compared with conventional injection molding.
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