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Position of Neutral Surface during Hollow Disk Compression Molding of Long Fibre-Reinforced Thermoplastics**

  • H. Hojo , E. G. Kim , T. Onodera , H. Yaguchi , S. H. Kim and M. Koshimoto
Published/Copyright: May 27, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 4 Issue 3

Abstract

A model is presented which can be used to explain the friction condition on the interface between the composites and the mold during sheet-like parts compression molding of fibre-reinforced thermoplastics. The composites is treated as an incompressible isotropic fluid. Circular hollow disk is compressed in order to derive the position of the neutral surface which can explain the interfacial friction from consideration of minimum energy dissipation. From the theory and the experiment, it is clear that there is slip on the mold surface. By using the nondimensional parameter which measures the ratio ofvicous to frictional resistance, the phenomenon of the friction can be well explained.

* Mail address: Prof. Dr. Hidetsune Hojo, Department of Mechanical Engineering II, Tohoku University, Sendai, 980, Japan

** Paper presented at the 4th annual meeting of the Polymer Processing Society, Florida, USA, May 8–11, 1988

Published Online: 2013-05-27
Published in Print: 1989-09-01

© 1989, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Prediction of Birefringence for Optical Memory Disk
  5. Transient Compressible Flow in Injection Molding Runner**
  6. Advances in Rheological Analysis of Injection Molding
  7. Optical and Mechanical Measurements to Characterize Injection Molded Polypropylene Plates
  8. Experimental Investigation of Rotational Molding and the Characterization of Rotationally Molded Polyethylene-Parts
  9. Blow Molding of Thermotropic Liquid Crystalline Polymers
  10. Position of Neutral Surface during Hollow Disk Compression Molding of Long Fibre-Reinforced Thermoplastics**
  11. Reactive Ion Etching of Polymer Films
  12. Fabrication of Microstructures of Extreme Structural Heights by Reaction Injection Molding
  13. Rheological Properties of Glass Fiber Filled Nylon 6 Composite System
https://doi.org/10.3139/217.890179

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Prediction of Birefringence for Optical Memory Disk
  5. Transient Compressible Flow in Injection Molding Runner**
  6. Advances in Rheological Analysis of Injection Molding
  7. Optical and Mechanical Measurements to Characterize Injection Molded Polypropylene Plates
  8. Experimental Investigation of Rotational Molding and the Characterization of Rotationally Molded Polyethylene-Parts
  9. Blow Molding of Thermotropic Liquid Crystalline Polymers
  10. Position of Neutral Surface during Hollow Disk Compression Molding of Long Fibre-Reinforced Thermoplastics**
  11. Reactive Ion Etching of Polymer Films
  12. Fabrication of Microstructures of Extreme Structural Heights by Reaction Injection Molding
  13. Rheological Properties of Glass Fiber Filled Nylon 6 Composite System
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