Q.

In open die forging process, homogenous deformation of billet has occurred with uniform increase in its diameter.

A. true
B. false
Answer» B. false
Explanation: in open die forging process, the deformation is not homogenous as bulging occurs due to the presence of friction at the interface of die and billet. this friction opposes the motion of billet; this effect is generally called as barreling effect.
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