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

An orthogonal turning operation is carried out under the following con

1.	An orthogonal turning operation is carried out under the following conditions; rake angle = 5 , spindle rotational speed = 400 rpm; axial feed = 0.4 m/min and radial depth of cut = 5 mm. The chip thickness tc, is found to be 3 mm. The shear angle (in degree) in this turning process is______.
A.	19.88
B.	18.80
C.	18.88
D.	18.99
Answer» D. 18.99

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

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