Question

Linked Data:
During orthogonal machining of a mild steel specimen with a cutting tool of zero rake angle, the following data is obtained:
Uncut chip thickness $=0.25mm$
Chip thickness $=0.75$
Normal force $=950N$
thrust force $=475N$

The ultimate shear stress (in $N/m{m}^2$) of the work material is

• A. $235$
• B. $139$
• C. $564$
• D. $390$

Answer 1

The correct option is D $390$

$390$