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Simulation of HDPE Mold Filling in the Injection Molding Process with Comparison to Experiments

  • Research Article - Mechanical Engineering
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Abstract

In this paper, 3D simulation of mold filling for high-density polyethylene in the injection molding process using ANSYS-CFX is conducted. In addition, injection molding experiments involving deliberate short-shots done for various percentages of the optimum dosage to enable for melt front tracking were performed. Comparison between simulation and experimental results showed reasonable agreement with regard to the shape of melt front. The locations of the melt front obtained from the experiment were observed to be slightly ahead of the locations predicted by the simulation with discrepancy being attributed to the nature of the injection molding experiments.

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Abbreviations

A in :

Inlet area

C D :

Non-dimensional drag coefficient

d αβ :

Length scale

g :

Acceleration due to gravity

M αβ :

Interphase momentum transfer term

n :

Unit vector in normal direction

p :

Pressure

Q in :

Inlet flow rate

r α :

Volume fraction for material α

S M :

Momentum form inertial forces

t :

Time

T :

Stress tensor

U :

Velocity vector

V :

Volume

v in :

Inlet velocity

μ :

Viscosity

ρ :

Density

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Authors and Affiliations

  1. Mechanical Engineering Department, Qassim University, PO Box 6677, Buraydah, Qassim, 51452, Kingdom of Saudi Arabia

    Saad M. S. Mukras & Fahad A. Al-Mufadi

Authors
  1. Saad M. S. Mukras
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  2. Fahad A. Al-Mufadi
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Correspondence to Saad M. S. Mukras.

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Mukras, S.M.S., Al-Mufadi, F.A. Simulation of HDPE Mold Filling in the Injection Molding Process with Comparison to Experiments. Arab J Sci Eng 41, 1847–1856 (2016). https://doi.org/10.1007/s13369-015-1970-9

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  • DOI: https://doi.org/10.1007/s13369-015-1970-9

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