1.

Which of the following methods of casting is best suited for casting of hollow pipes and tubes?(a) Investment casting(b) Permanent mould casting(c) Die casting(d) Centrifugal castingThis question was addressed to me in final exam.My enquiry is from Centrifugal Casting in chapter Special Casting Techniques of Casting-Forming-Welding I

Answer»

The correct choice is (d) Centrifugal casting

To explain: Specifically, true centrifugal casting is generally used for the making of hollow pipes and tubes, which are axi-symmetric with a CONCENTRIC hole. MOLTEN metal is accumulated at the inward surface of the MOULD by the ROTATION of the mould and then the solidification of a MELT is taking place.



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