A 50mm diameter steel rod was turned at 284 rpm and tool failure occurred in 10 minutes. The speed was changed to 232 rpm and the tool failed in 60 mintues. Assuming straight line relationship between cutting speed and tool life, the value of Taylorian Exponent is
- A. 0.21
- B. 0.13
- C. 0.11
- D. 0.23
Answer: C. 0.11
Explanation: Use $V_1 T_1^n = V_2 T_2^n$. $(284)(10)^n = (232)(60)^n$. Solving gives $n \approx 0.11$.