Q. 65 An orthogonal turning operation is carried out under the following conditions:
rake angle = 
, spindle rotational speed = 400 rpm; axial feed = 0.4 m/min and
radial depth of cut = 5 mm. The chip thickness 
, is found to be 3 mm. The shear
angle (in degrees) in this turning process is _______
Answer: (18.88
Explanation:
