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Fiber Orientation Distribution of Injection Molded Product on the Fiber-Reinforced Polymeric Composites  

Lee Dong-Gi (조선대학교 기전공학과)
Sim Jea-Ki (조선대학교 기전공학과)
Kim Jin-Woo (조선대학교 대학원 정밀기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.14, no.1, 2005 , pp. 73-80 More about this Journal
Abstract
Injection molding is the most widely used process for the industrial forming of plastic articles. During an injection molding process of composites, the fiber-matrix separation and fiber orientation are caused by the flow of molten polymer/fiber mixture. As a result, the product tends to be nonhomogeneous and anisotropic. Hence, it is very important to clarify the relations between separation orientation and injection molding conditions. So far, there is no research on the measurement of fiber orientation using image processing. In this study, the effects of fiber content ratio and molding condition on the fiber orientation-angle distributions are studied experimentally. Using the image processing method, the fiber orientation distribution of welding parts in injection-molded products is assessed. And the effects of fiber content and injection mold shapes on the fiber orientation in case of fiber reinforced polymeric composites are studied experimentally.
Keywords
Injection Molding; Welding Part; Fiber Orientation Function; Mold Shape; Image Processing; Weld Line; One-Gate; Double-Gate;
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