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The frictional problems can be increased if a long mandrel is used during the process of tube drawing.

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in Casting-Forming-Welding II by (119k points)
The frictional problems can be increased if a long mandrel is used during the process of tube drawing.

(a) True

(b) False

This question was addressed to me in my homework.

My question is taken from Tube Making topic in chapter Miscellaneous Forming Processes of Casting-Forming-Welding II

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The correct answer is (b) False

Explanation: The tube drawing process can be accomplished by with or without mandrel. Mandrel basically consists of a hard rod or wire that extends over the entire length of the tube and is drawn through the die along with the drawing tube. The frictional problems can be greatly reduced by providing a long mandrel in the tube drawing process.

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