The Effect of Mold Shapes on the Fiber Orientation of Welding Parts for Injectin Molding of Fiber Reinforced Polymeric Composites

섬유강화 고분자 복합재료의 사출성형에 있어서 웰드부의 섬유배향에 미치는 금형형상의 영향

  • 강명구 (조선대학원 정밀기계공학과) ;
  • 최유성 (조선대학원 정밀기계공학과) ;
  • 김혁 (조선대학원 정밀기계공학과) ;
  • 이동기 (조선대학교 기계공학부) ;
  • 한길영 (조선대학교 기계공학부) ;
  • 김이곤 (국민대학교 기계자동차공학부)
  • Published : 2000.11.01

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 infection 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.

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