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Taylor’s tool life equation is given by VTn = C, where V is in m/min and T is in min. In a turning operation, two tools X and Y are used. For tool X, n = 0.3 and C = 60 and for tool Y, n = 0.6 and C = 90. Both the tools will have the same tool life for the cutting speed (in m/min, round off one decimal place) of ______.
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- 50 m/min
- 40 m/min
- 45 m/min
- 41 m/min
Correct Option: B
Taylor’s tool life equation,
VTn = c
for Tool X, for Tool y
VT0.3 = 60 VT0.6 = 90
Velocity when both tools have same tool life.
| = | ||
| VT0.6 | 90 |
| (T)0.6 − 0.6 = | |
| 9 |
T0.3 = 1.5
T = (1.5)1/0.3min
| V = | = 40 m/min | |
| (1.5)0.3/0.3 |
