Comparison of Rheological Models to Simulate Die Filling Process of A356 Semisolid Alloy
Por:
Sanjuan-Sanjuan G., Galindo-Solano A., Ramírez-Calera I.J., Chavez-Castellanos Á.E.
Publicada:
1 ene 2023
Resumen:
Semisolid materials with a non-dendritic microstructure have a complex rheological behavior such as pseudo-plasticity and thixotropy. These properties affect filling and solidification processes during, casting; thus, simulation plays a vital role since it avoids limitations improving cast and production performance. In order to study and A356 aluminum semisolid alloy flow, a Computational Fluid Dynamics (CFD) software (ANSYS) is used to simulate the die filling process in a rectangular mold. Three non-Newtonian constitutive equations are modeled in this work: the Cross equation, the Power-law equation and the Carreau equation. The rheological parameters for each equation were obtained from experimental data reported in the literature. The results showed that the non-Newtonian models predicted better the filling behavior and the pressure distribution than the Newtonian model. © 2023 Trans Tech Publications Ltd, Switzerland.
Filiaciones:
Sanjuan-Sanjuan G.:
Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico
Galindo-Solano A.:
Departamento de Ingeniería Metalúrgica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico
Ramírez-Calera I.J.:
Departamento de Ingeniería en Control y Automatización, Instituto de Estudios Superiores Rosario Castellanos, San Bernabé Ocotepec, La Magdalena Contreras, CDMX, 10300, Mexico
Chavez-Castellanos Á.E.:
Departamento de Ingeniería Química, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico
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