-
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______.
-
- 19.88
- 18.80
- 18.88
- 18.99
Correct Option: C
µ= 5° N = 400 rpm f = 0.4m/min
| f = | = 1 mm/res = t1 | 400 |
t2 = 3 mm
| tanΦ = | 1 - tsin ∝ |
| r = | = | |||
| t2 | 3 |
tanΦ = 0.342
Φ = 18.88
