Question

In the gravity die casting technique, not every metal can be casted easily.

(a) True

(b) False

The question was posed to me in a national level competition.

This intriguing question comes from Casting Techniques in section Casting Process of Casting-Forming-Welding II

Answer 1

Right answer is (a) True

For explanation: In the gravity die casting method, not every metal can be casted easily because of using a metallic mould in the casting process. In this method, the sticking problem arises when metallic mould interacts with the casting metal. Due to this, much of lubricant is used, but still, this method is not suited for every metal.