Question

Which of the following cannot be made from the shell molding process?

(a) Cylinder heads

(b) Connecting rods

(c) Engine blocks

(d) Valves

I have been asked this question in unit test.

I'd like to ask this question from Core and Shell Moulding topic in portion Moulding Machines & Special Moulding Processes of Foundry and Forging

Answer 1

Right answer is (d) Valves

Best explanation: The valves are prepared using a pressure die casting process or it is done by a green sand molding process. It does not require high work to be done on pattern making which is done in the shell molding process.