The solidification of casting in an insulating mould produces casting of hard and brittle nature.(a) True(b) FalseThe question was posed to me by my college director while I was bunking the class.I want to ask this question from Solidification of a Large Casting in an Insulating Mould topic in division Cooling and Solidification of Casting-Forming-Welding I

The solidification of casting in an insulating mould produces casting

1.	The solidification of casting in an insulating mould produces casting of hard and brittle nature.(a) True(b) FalseThe question was posed to me by my college director while I was bunking the class.I want to ask this question from Solidification of a Large Casting in an Insulating Mould topic in division Cooling and Solidification of Casting-Forming-Welding I
Answer» Correct choice is (b) False Explanation: During the solidification of casting in an insulating mould, the casting made is generally of ductile nature as the heat transfer to the SURROUNDING is restricted and the casting is kept for LONG TIME in the mould which have slow solidification rate that causes coarse grain STRUCTURE in the casting PRODUCED.

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