Question: Consider a machining operation in which the cutting speed is reduced by a factor of 4 ( Vnew = 0 . 2 5 Vold )

Consider a machining operation in which the cutting speed is reduced by a factor of 4(Vnew=0.25Vold). Find the % change in the temperature Tnew-ToldTold100 at the tool chip interface.
Answer is -37%

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