The maximum reduction in cross-sectional area per pass (R) of a cold wire drawing process is\(R = 1 - {e^{ - \left( {n + 1} \right)}}\)where n represents the strain hardening coefficient. For the case of a perfectly plastic material, R is

The maximum reduction in cross-sectional area per pass (R) of a cold w

1.	The maximum reduction in cross-sectional area per pass (R) of a cold wire drawing process is\(R = 1 - {e^{ - \left( {n + 1} \right)}}\)where n represents the strain hardening coefficient. For the case of a perfectly plastic material, R is
A.	0.865
B.	0.826
C.	0.777
D.	0.632
Answer» E.