Question

Contours, cavities and passages in the casting can be possible without placing of any cores in the casting.

(a) True

(b) False

I have been asked this question by my college professor while I was bunking the class.

This interesting question is from Product Design for Sand Castings in section Pouring – Gating Design, Melting Furnaces, Melting and Casting Quality of Casting-Forming-Welding I

Answer 1

The correct option is (a) True

For explanation I would say: In the normal moulding, it is not possible to have any contours, cavities and passages in the casting. Cores are placed in the mould to achieve the required passages in the casting. But, a minor change in the design of casting can achieve this and also economize production cost, by eliminating cores.