Particle Migration of Quasi-Steady Flow in Concentrated Suspension for Powder Injection Molding
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IMST014.pdf
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552.04 KB
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Checksum (MD5)
1db6f5a87a16e65109d4e1b9f36a0388
Author(s)
Chen, X.
Lam, Yee Cheong
Tam, Michael K. C.
Yu, S.C.M.
Date Issued
January 2002
Series/Report no.
Innovation in Manufacturing Systems and Technology (IMST);
Abstract
A hybrid FEM/FDM algorithm for particle migration of quasi-steady flow in concentrated suspension materials is proposed in this study. This hybrid FEM/FDM algorithm in which the planar variables, such as pressure field, are described in terms of finite element method, and gapwise variables of temperature, density concentration and time derivatives are expressed by finite difference method. The particle concentration inhomogeneities can be predicted, which is ignored by the existing injection molding simulation packages. Simulation results indicated that powder concentration variation could be significant in practical processing in PIM.
Subjects
hybrid FEM/FDM algorithm
particle migration
quasi-steady flow
concentrated suspension materials
finite element method
finite difference method
particle concentration inhomogeneities
powder injection molding
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