Numerical Simulation of Back Pressure Influenced Aluminum Component’s HPDC Process

Abstract:

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Due to the flow behavior of molten metal is affected by the back pressure of mold residual air in high pressure die casting (HPDC) process, the back pressure conditions should be considered in order to simulate the HPDC process precisely. In this study, an aluminum colander of automobile’s filling process in HPDC was calculated by combining the back pressure conditions. The optimized schemes were given by considering the simulation results. Both initial and optimized schemes simulation results were compared with actual parts. The contribution of gas porosity between simulation and actual part were in agreement when back pressure conditions were applied. The local back pressure can be controlled by coordinating the position of the vents. Therefore the flow behavior of molten metal can be changed and the porosity defects can be fixed.

Info:

Periodical:

Advanced Materials Research (Volumes 139-141)

Edited by:

Liangchi Zhang, Chunliang Zhang and Tielin Shi

Pages:

549-552

DOI:

10.4028/www.scientific.net/AMR.139-141.549

Citation:

W. J. Cao et al., "Numerical Simulation of Back Pressure Influenced Aluminum Component’s HPDC Process", Advanced Materials Research, Vols. 139-141, pp. 549-552, 2010

Online since:

October 2010

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Price:

$35.00

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