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sprue-well
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Sprue-well Design Optimization by Means of Computer Simulation and Experimental Tests
, M.Sc. Thesis Sharif University of Technology ; Tavakoli, Rouhollah (Supervisor) ; Davami, Parviz (Co-Advisor)
Abstract
In many casting experiments, a well is used in the bottom of downsprue, which causes smooth flow in the runner. When the well is not properly designed, sand erosion happens in the runner and some oxide films and gaseous trap within the melt. These oxide films enter into the cast and decrease its strength and fatigue resistance. In addition, the gaseous trapped in the melt turn into solidification voids within the casting part which deteriorate its mechanical properties. The purpose of this research is to enhance casting efficiency by eliminating the mentioned defects. Modified design of sprue-well is proposed by the means of simulation with ProCAST software. Effective variables considered...