Question

In designing for economical moulding, it is not advisable to have complexities in the parting line.

(a) True

(b) False

I got this question in an international level competition.

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

Answer 1

The correct answer is (a) True

The explanation is: Parting line is determined by the shape of the casting. The simplest parting line is that running through the centre line of the casting as shown in the below figure. Unnecessary complexities in the parting line increase the cost. So the designer strives to design castings with parting planes that are straight or as nearly straight as possible.