成形加工
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
9 巻, 8 号
選択された号の論文の18件中1~18を表示しています
目次
第 9 回年次大会特集号
第 9 回プラスチック成形加工学会年次大会を終えて
大会講演・討論を聞いて
解説 : 第 9 回年次大会特別講演より
学会賞選考委員会報告
解説 : 第 7 回 「青木 固」 技術賞報告
論文賞受賞論文概要
技術報告
日本の大学・試験・研究機関の研究 : 64
加工技術展望
振り返って語る
講座
海外研究機関の紹介 : 27
論文
  • 新保 實, 宮野 靖, 北村 輝之, 野田 雅之, 西村 勝彦
    1997 年 9 巻 8 号 p. 645-651
    発行日: 1997/08/20
    公開日: 2009/11/18
    ジャーナル フリー
    The purpose of this paper is to study the generation mechanism of residual stress in laminates which consist of glass fiber reinforced plastic and copper leaf through the molding.
    First, a viscoelastic model including not only thermal shrinkage but also plastic deformation is proposed. The generation mechanism of residual stress introduced in laminates the during molding process is qualitatively explained by using this viscoelastic model.
    Second, fundamental equations are derived for the residual stress in laminates during the molding process considering visco-elastic-plastic deformation. With these fundamental equations, the residual stress in laminates are calculated using the characteristics of each component material.
    Finally, the residual stress in laminates are measured carefully using a layer removal method. By comparing the theoretical and experimental results, the generation mechanism of residual stress generated in laminates during the molding process is discussed.
  • 第3報 かみ合い同方向回転セルフクリーニング型二軸スクリュを用いた三次元流動解析
    劉 麗潔, 長嶋 勇希, 梶原 稔尚, 船津 和守
    1997 年 9 巻 8 号 p. 652-660
    発行日: 1997/08/20
    公開日: 2009/11/18
    ジャーナル フリー
    A Three-dimensional flow analysis of the transportation elements in an intermeshing co-rotating self-cleaning twin screw extruder was carried out using the finite element method. In the present paper, two types of self-cleaning twin screws were used for simulation in order to observe the influence of the screw configurations. The velocity profile, transportation flow rate, leakage flow rate and maximam shear stress profile have been compared for both types of screws. The maximum shear stress history, residence time distribution and deformation history for the fluid elements have been discussed using the numerical results of the tracer experiment. The results suggest that the transportation capacity is higher in the stronger self-cleaning twin screw than in the weaker self-cleaning twin screw. The stronger self-cleaning twin screw has a narrower residence time distribution which is difficult to be affected by the back pressure gradient.
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