-
In orthogonal turning of medium carbon steel, the specific machining energy is 2.0 J/mm3. The cutting velocity, feed and depth of cut are 120 m/min, 0.2 mm/rev and 2 mm respectively. The main cutting force in N is
-
- 40
- 80
- 400
- 800
Correct Option: D
FC = Cutting force;
V = Cutting velocity
Specific machining energy = 2.0 J/mm3
∴ FC × V =2 × MRR
⇒ FC = 2 × .2 × 10−3 × 2 × 103 = 800 N
