pure aluminum is being poured into a sand mold. The metal level in the pouring basin is 10 in. above the metal level in the mold, and the runner is circular. What runner diameter is needed to ensure a Reynolds number of 2000? how long will a 20 in' casting take to fill with such a runner? given that Pure aluminum has a density of 2700 kg/m' and a viscosity of around 0.0015 N.s/m2 at 700 °C. Usev 87.9 in/s 2.23 m/s for the Reynold %3D number. (

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Metal Casting

Metal casting is described as a manufacturing process in which a mold cavity is produced by sand, and molten metal is filled inside a mold cavity. The desirable shaped object is achieved after the solidification of molten metal. Large metal objects like machine beds, motor bodies, and others can easily be manufactured using metal casting. The place or shop where metal casting is performed is called foundry.