When the depth of cut in increased, the specific cutting

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When the depth of cut in increased, the specific cutting energy

1. Increases
2. Decreases
3. remains same
4. Reaches an optimum value

Correct Option: B

Specific cutting energy =	F_c
	W.t₁

t ↑ SCE ↓ t₁ → uncut chip thickness & depth of cut in orthogonal model