railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Metal Cutting Processes
The specific metal cutting energy is expressed as
where 'α' is rake angle, 'β' is friction angle, 'φ' is shear angle and 'τ' shear stress
1
\(\rm\frac{\tau \cos (\beta-\alpha)}{\sin \varphi \cos (\varphi+\beta-\alpha)}\)
2
\(\rm\frac{\tau \sin (\beta-\alpha)}{\sin \varphi \cos (\varphi-\beta+\alpha)}\)
3
\(\rm\frac{\tau \cos (\alpha-\beta)}{\sin \varphi \cos (\varphi-\beta+\alpha)}\)
4
\(\rm\frac{\tau \sin (\alpha-\beta)}{\sin \varphi \cos (\varphi+\beta-\alpha)}\)