Question

What will happen if the parting line in the corebox is not closed properly?

(a) Coresand may blow out of the box to create fins on the cores

(b) The cope and drag part clamped will detach and break the core

(c) Air inclusion occurs as the atmospheric air involves the solidification of core

(d) Nothing will happen, as the parting line has no role in core making

The question was asked in an interview.

Asked question is from Finishing of Cores in section Core and Core Making of Casting-Forming-Welding I

Answer 1

Correct option is (a) Coresand may blow out of the box to create fins on the cores

To explain I would say: Obviously, the sand will overflow out causing unwanted contours called fins, which may increase the cost of machining to remove them and time is consumed.