Ask a Question

Patterns having insufficient taper result in __________

← Prev Question Next Question →
+1 vote
in Foundry and Forging by (110k points)
Patterns having insufficient taper result in __________

(a) Fins

(b) Blow holes

(c) Drop

(d) Scab

The question was posed to me in exam.

The origin of the question is Casting Defects topic in portion Concept of Gating and Risering of Foundry and Forging

1 Answer

+1 vote
by (736k points)
selected by
 
Best answer
The correct answer is (a) Fins

The explanation is: Fins at the mold joint occur when bottom boards are too flexible or if the pattern plates are not sufficiently rigid to keep straight during ramming. Thus the pattern having insufficient taper require excessive rapping for the withdrawal from sand which results in fins at joint.

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community

Categories

Powered by TalkJarvis
...