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http://dx.doi.org/10.21289/KSIC.2022.25.5.889

A Study on the Design and Simulation of Sand Casting for Alumimum Turbo Fan in Tank Powerpack  

Jin, Chul-Kyu (School of mechanical engineering, Kyungnam University)
Lee, Un-Gil (School of mechanical engineering, Kyungnam University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.5, 2022 , pp. 889-898 More about this Journal
Abstract
In this study, sand casting process was applied to manufacture a large aluminum turbo-type fan used for tank powerpack. To apply the sand casting method, the turbo fan was reverse engineered, and after designing three gating systems, the optimal gating system design was selected by performing casting simulation. In the case of the bottom up-gating system, there is a significant temperature loss of the molten alloy during blade filling. When the molten alloy is completely filled into the sand mold, the blade upper tip and front shroud are below the liquidus temperature. In the case of the top down-gating system, molten alloy scattering occurs, but the temperature loss while the blade is filled is smaller than that of the bottom up type. And after the inflow of molten alloy into the mold is completed, the blade upper tip and front shroud are higher than the liquidus temperature. A sand mold was manufactured with the top down-gating system and the casting process was performed. The fan was made perfectly in appearance without any unfilled parts.
Keywords
Casting Simulation; Gating System Design; Powerpack; Sand Casting; Turbo Fan;
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