If the heavy casting is produced, then which of the following can be used to maintain the progressive solidification?(a) Sprue(b) Riser(c) Chills(d) Pouring basinI got this question in an internship interview.My question is based upon Gravity Die Casting topic in portion Special Casting Techniques of Casting-Forming-Welding I

If the heavy casting is produced, then which of the following can be u

1.	If the heavy casting is produced, then which of the following can be used to maintain the progressive solidification?(a) Sprue(b) Riser(c) Chills(d) Pouring basinI got this question in an internship interview.My question is based upon Gravity Die Casting topic in portion Special Casting Techniques of Casting-Forming-Welding I
Answer» Correct choice is (c) Chills The explanation: When the heavy sections of casting are made then they are likely to interfere with the PROGRESSIVE solidification, this interference can be avoided by using chills SUPPORTED by heavy air blast to remove excess of heat. ALSO, the cooling channels can be provided at the necessary points to get PROPER temperature distribution.

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