Question

The shaking out of cast iron casting from mould cavity is known as fettling process.

(a) True

(b) False

I had been asked this question in a national level competition.

I would like to ask this question from Cast Irons in portion Foundry Introduction & Materials of Casting-Forming-Welding II

Answer 1

The correct choice is (b) False

To elaborate: The cast iron is first melted in furnace and then poured into the mould cavity. After cooling of cast iron in the mould it is broken out. All the excess of metal from the process, gates, runners etc are removed in a process called as fettling, which also have operations like grinding and shot blasting to produce the good surface finish of the castings.