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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v43.i1.10
pages 1-17

Thermal Effect in Minimizing Air Entrainment in the 3D Shot Sleeve During Injection Stage of the HPDC Machine

Abdel Illah Nabil Korti
ETAP Laboratory, Department of Mechanical Engineering, University of Tlemcen, B.P. 230, Tlemcen 13000, Algérie
Mohammed Choukri Korti
ETAP Laboratory, University of Tlemcen, FT, Department of Mechanics BP 230, 13000 Tlemcen, Algeria
Said Abboudi
Laboratoire Interdisciplinaire Carnot de Bourgogne, ICB UMR 6303 CNRS, Université Bourgogne Franche Comté (UBFC), UTBM, site de Sévenans 90010 Belfort cedex, France

Краткое описание

The high pressure die casting (HPDC) process is an important commercial process for the production of complex near net shape metal castings, characterized by low cost and high efficiency. In this process, the thermal effects of molten metal flow in the shot sleeve are a major factor in determining casting surface quality and many internal quality parameters such as porosity. Therefore, promptly evaluate the thermal effect on the injection stage is vital to the quality control and improvement of productivity. The geometric complexity of the die leads to strongly three-dimensional fluid flow with significant free surface fragmentation and splashing. A popular commercially available software package for heat flow simulations and analysis, fluent, is used and employs the volume-of-fluid (VOF) method for tracking interfaces. A 3D multi-fluid flow and heat transfer are performed to simulate the injection stage of liquid aluminum to ensure the minimum air entrapment. Different process parameters were tested and plunger velocity was optimized by using simulation.