-
Two identical cylindrical jobs are turned using
(a) a round nosed tool of nose radius 2 mm and
(b) a sharp corner tool having principal cutting
edge angle = 45° and auxiliary cutting edge angle = 10°. If the operation is carried out of the feed of 0.08 mm/rev, the height at micro irregularities on the machined surfaces (in mm) in the two cases will be
-
- 0.0001, 0.024
- 0.0002, 0.012
- 0.0003, 0.024
- 0.0004, 0.012
Correct Option: D
ASA Signature ψ = 45°, ψ =10°
| Hmax = | = | ||
| 8R | 8 × 8 |
ORS signature = 0.0004 mm
| Hmax = | = | ||
| tan ψ + cot ψ | tan4548° + cot 10° |
Hmax = 0.012 mm
