ブレード強化熱可塑性樹脂複合円管の軸押込みによる配向角変化を利用したバルジ成形加工

概要

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A new forming process of continuous fiber-reinforced thermoplastics (FRTP) having high toughness and high strength is required for mass production and low cost. In this study, bulge forming of FRTP braided tubes by means of axial compression was carried out as a new technique of forming FRTP utilizing fiber orientation rearrangement. As a result, bulge forming was achieved without buckling when flow stress of the matrix was small enough to rearrange orientations of the braid. Kinematics of the braid was also considered, and that calculated from the model was compared with that from experiment. In addition, the kinematic state of the braid after deformation was simulated through calculation from the geometric braid model. It was found that the "normalized profile" of the bulged part does not change during the process, and the thickness of the matrix depends on fiber orientations in bulge forming.
社団法人日本機械学会の論文
1993-09-25