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The process of drawing a tube without the use of any mandrel is called as tube sinking.

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The process of drawing a tube without the use of any mandrel is called as tube sinking.

(a) True

(b) False

I have been asked this question in my homework.

My question is from Tube Making in section Miscellaneous Forming Processes of Casting-Forming-Welding II

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Right option is (a) True

The explanation: Tube drawing process can be performed with or without mandrel, depending on the features required in the drawn tube. The mandrel is generally excluded if it is not necessary to make a reduction in the wall thickness, or if the dimensions and surface finish are not important. The process of drawing a tube without the use of any mandrel is basically known as tube sinking.

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