railway RRB JE (CBT I + CBT II) Mock Test 2024 Production Engineering (Manufacturing) Machining Processes and Machine Tools Taylor's Tool Life Equation
A high-speed tool steel is used for machining of a workpiece of mild steel While machining at cutting speed of 30 m/min, the useful tool life of tool steel is found to be 1 hr. What will be the tool life if the same tool is used to cut at a speed of 40 m/min. ? (Assume n = 0.12)
1
5 min
2
5.75 min
3
6 min
4
5.5 min