Premium
Three‐dimensional simulation of multi‐material injection molding: Application to gas‐assisted and co‐injection molding
Author(s) -
Ilinca Florin,
Hétu JeanFrançlois
Publication year - 2003
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.10120
Subject(s) - materials science , molding (decorative) , isothermal process , finite element method , work (physics) , mechanical engineering , flow (mathematics) , mechanics , transfer molding , composite material , newtonian fluid , core (optical fiber) , polymer , thermodynamics , mold , engineering , physics
This paper presents an overview of the results obtained at the Industrial Materials Institute (IMI) on the numerical simulation of the gas‐assisted injection molding and co‐injection molding. For this work, the IMI's three‐dimensional (3D) finite element flow analysis code was used. Non‐Newtonian, non‐isothermal flow solutions are obtained by solving the momentum, mass and energy equations. Two additional transport equations are solved to track polymer/air and skin/core materials interfaces. Solutions are shown for different thin parts and then for thick three‐dimensional geometries. Different operating conditions are considered and the influence of various processing parameters is analyzed.