INJECTION MOLDING SIMULATION OF A COMPRESSIBLE POLYMER

Tutar M., Karakus A.

JOURNAL OF POLYMER ENGINEERING, vol.29, no.6, pp.355-383, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 6
  • Publication Date: 2009
  • Doi Number: 10.1515/polyeng.2009.29.6.355
  • Journal Name: JOURNAL OF POLYMER ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.355-383
  • Keywords: mold insert injection molding, solidification, jetting, finite volume method, mold filling, three-dimensional modeling, NUMERICAL-SIMULATION, MELT FLOW, TEMPERATURE
  • Middle East Technical University Affiliated: No

Abstract

This study presents the 3-D simulation Solutions for mold insert polymer injection molding process. A more complete and robust numerical approach is developed by considering the effects of solidification, compressibility and viscosity changes for high-viscous non-isothermal polymer melt flow conditions. The generated user-defined functions are successfully incorporated into a volume of fluid (VOF) method, which is coupled with a finite volume approach, to represent a more realistic polymer melt flow simulations. A comprehensive high-resolution differencing scheme (CICSAM) is successfully adopted to capture the moving interface. The comparative numerical results demonstrate that the present numerical approach improves the accuracy of simulation predictions of 3-D compressible mold filling process and can be used with a confidence in simulating real molding flow conditions.