Practical and scientific aspects of injection molding simulation

Kennedy, Peter

doi:10.6100/ir634914

Cited by 13 publications

(2 citation statements)

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“…The Moldflow ® Adviser software was used to simulate the molten polymer injection process. Moldflow ® uses the generalized Hele-Shaw model (GHS) to calculate the non-Newtonian polymer flow [31] . The initial conditions were the same used in the experiments: (2)…”

Section: Determination Of Inlet Velocity By Numerical Simulationmentioning

confidence: 99%

“…The Moldflow ® Advisor software simulates the flow of the molten polymer considering a non-Newtonian and compressible fluid under non-isothermal conditions. For more detailed clarification on the governing equations for the conservation of mass, momentum and energy for molten polymer flow, the reader is referred to Kennedy's work [31] for more details on the GHS mathematical approach and Miranda et al [29] for further details of the thermophysical properties used in the simulations.…”

Section: Generalized Hele-shaw Modelmentioning

confidence: 99%

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A methodology for determination the inlet velocity in injection molding simulations

Miranda,

Rauber,

Vaz Jr.

et al. 2024

Polímeros

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The inlet velocity of thermoplastic in injection molds plays a crucial role in obtaining high-quality polymer parts and the final performance of the product. It is known that the way the polymer is injected into the mold can directly affect important properties, such as the distribution of internal stresses, the cooling rate and the formation of surface defects. However, there are injection molding machines that only control injection pressure and dosage, making it difficult to obtain the gate inlet velocity into the mold cavity. Besides, some molds have many injection channels as well as complex inlet geometries, which make a challenging task to identify the inlet velocity. This study presents numerical and experimental approaches on how to determine the entry velocity in thermoplastic injection molds. The main results showed that these methods are highly efficient and contribute to identifying the gate inlet velocity with good accuracy.

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Section: Determination Of Inlet Velocity By Numerical Simulationmentioning

confidence: 99%

Section: Generalized Hele-shaw Modelmentioning

confidence: 99%