Analysis of fluid flow in centrifugal casting |
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Authors: | K S Keerthi Prasad M S Murali and P G Mukunda |
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Affiliation: | (1) Department of Mechanical Engineering, Nitte Meenakshi Institute of Technology (NMIT), Bangalore, 560064, Karnataka, India;(2) Department of Mechanical Engineering, Rashtriya Vidyalaya College of Engineering (RVCE), Bangalore, 560079, India |
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Abstract: | Centrifugal casting process is a fast process with melt, cast and moulds being opaque. It is almost impossible to observe
the melt behavior during casting. Cold modeling experiments were conducted using horizontal transparent moulds and transparent
fluids of different viscosities to study the effect of different process variables on the flow pattern. Effects of the thickness
of fluid cylinder, viscosity of the fluid, diameter of the mould, and rotational speed of the mould on the formation of complete
hollow fluid cylinder are investigated. The influence of rotational speed has been studied in aluminum casting. The cylinders
are cast at different rotational speed with varying thickness. It is observed that the speed required to form uniform cylinder
increases with the increase in thickness of a fluid cylinder. As rotational speed is increased the hardness of the cast cylinder
also increases. The flow patterns seen in cold modeling experiments and actual castings agree reasonably well. |
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