5309 プラスチック射出成形金型の冷却管配置設計 : 最適性評価方法の検討(J17-2 解析・設計の高度化・最適化(2)(設計と最適化),J17 解析・設計の高度化・最適化:解析の高度化)

概要

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In this paper, methods to evaluate optimality of a cooling pipe system in plastic injection moldings is presented. When plastic products are molded, residual stresses that cause warps and cracks in some years after molding are generated by a non-uniformity of temperature cooling rate in the die. The shape and layout design of cooling pipe system is the most effective factor for the improvement of distributions of coolant flow and temperature in the die. In this study, an optimum cooling pipe layout to give a uniform temperature distribution in the die is proposed to reduce the residual stresses. Then an optimization method is applied to design an optimal cooling pipe system, where the objective function consists of the plastic material temperature in the die calculated by a numerical simulation.
社団法人日本機械学会の論文
2006-09-15