Question

It is not easy to control the internal geometry of the castings made by a slush casting method.

(a) True

(b) False

The question was posed to me at a job interview.

The query is from Slush Casting in division Special Casting Techniques of Casting-Forming-Welding I

Answer 1

Right choice is (a) True

To elaborate: In slush casting, it is not easy to control the internal geometry of the castings because when the mould is inverted some of the material remains sticks to the solidified wall of the casting, which results into the formation of irregularities at the interior part of the casting, which then requires expensive machining.