Question

Which of the following considerations distinguish die casting from the permanent mould casting?

(a) Moulding material

(b) Way of pouring molten metal

(c) Coating on mould

(d) Size of castings

I got this question in a job interview.

Origin of the question is Die Casting topic in division Special Casting Techniques of Casting-Forming-Welding I

Answer 1

Right option is (b) Way of pouring molten metal

Best explanation: Die casting is almost the same as permanent mould casting, in that both the processes use reusable metallic dies. Die casting involves the preparation of components by injecting molten metal at high pressure into a metallic die; this way of pouring of molten metal distinguishes die casting from the permanent mould casting.