2016

Calculate change in the tool life if cutting speed is reduced by 50%
Machining

Machining, Tool Life

Question: In a single point turning operation with cemented carbide tool and steel work piece, it is found that the Taylor’s exponent is 0.25. If the cutting speed is reduced by 50% then what will be the change in the tool life? [GATE 2016] This problem related to the tool life in single point turning operation can be solved using the Taylor’s Tool Life equation. The well-known Taylor’s Tool Life

Velocity vs Tool Life curve using Taylor’s Tool Life equation for n of 0.5 and C of 400
Machining

Machining, Tool Life

Question: In a machining test, a cutting speed of 100 m/min indicated the tool life as 16 min, and a cutting speed of 200 m/min indicated the tool life as 4 min. What are the values of n and C? [ESE 2016] This is a straightforward problem on tool life that can be solved simply by using Taylor’s Tool Life equation. Here, two cutting velocities and the corresponding tool life