A disk 4 0 cm in diameter and 5 cm thick is to be cast of pure
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Question:
A disk cm in diameter and cm thick is to be cast of pure aluminum in an open mold
casting operation. The melting temperature of aluminum deg C and the pouring
temperature will be deg C Assume that the amount of aluminum heated will be more
than what is needed to fill the mold cavity.
Compute the amount of heat that must be added to the metal to heat it to the pouring
temperature, starting from a room temperature of deg C The heat of fusion of aluminum
Jg Assume the specific heat has the same value of Jgdeg C for solid and
molten aluminum.
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