Author(s)

T. Katayama, M. Shinohara, M. Hakotani & R. Tsukamoto

Abstract

BMC (Bulk Molding Compound) having an excellent mechanical property, is a fiber reinforced thermosetting resin and is mainly formed in high temperature compression molding. It has widely been applied in the field in which mass production is required such as housing equipment for example and more recently for bath-tubs. However, after manufacturing a heat crack that is a molding defect often arises at the point where the cross section differs, such as a corner. During BMC compression molding, temperature and cure distribution in the material become complicated. At some points, surplus thermal strain or cure strain due to volume change du

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