圧縮成形における繊維強化複合材料の充填挙動 : 第1報,ヒケ発生のメカニズム

概要

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Sink marks that occur on the outer surface of fiber-reinforced composite materials pose a problem because they lower the quality of a product. Various studies have been conducted on material composition, molding methods and shape factors in an effort to find effective methods of preventing sink marks. In this work, the mechanism causing sink marks have been investigated through numerical analysis and experimentation. The aim of this investigation was to find the optimum molding method and shape factor that would minimize sink marks on a sheet molding compound (SMC) The result makes it clear that sink marks are most likely to occur in the final process of anisotropic flow. Further, it is now possible to explain analytically the various factors that facilitate the molding of vehicle parts with excellent surface quality.
一般社団法人日本機械学会の論文
1988-01-25