Question

Thread rolling is a kind of metal forming which is essentially a hot forging operation.

(a) True

(b) False

I have been asked this question during an interview.

The question is from Thread Rolling in chapter Miscellaneous Forming Processes of Casting-Forming-Welding II

Answer 1

Right option is (b) False

To elaborate: Thread rolling is basically a kind of metal forming process which is essentially a cold forging operation. In this process, thread rolls are used which forced onto the component that prepared at the pitch diameter of the required thread. This method is widely used for manufacturing the bolts which combine with nut, and used for temporary joining.