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Which of the following processes is not the type of bulk forming process in the metal forming?

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in Casting-Forming-Welding II by (119k points)
Which of the following processes is not the type of bulk forming process in the metal forming?

(a) Bending

(b) Rolling

(c) Forging

(d) Extrusion

I got this question by my college director while I was bunking the class.

The origin of the question is Metal Forming Processes in portion Forming Process of Casting-Forming-Welding II

1 Answer

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Correct choice is (a) Bending

Best explanation: Bulk forming is a deformation process which results in a massive shape change of the material. The ratio of surface area to volume of the material is relatively small. It includes processes like forging, extrusion and rolling. But the bending process is a part of sheet metal forming which has surface area to volume ratio relatively high.

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