10 What is usually the limiting factor when determining cutt

10. What is usually the limiting factor when determining cutting tool life?

Solution

There are more than one factor affecting the cutting tool life. They are cutting speed, feed rate and depth of cut.

but usually we take cutting speed only. the equation VTⁿ = constant is used to find the tool life, where V is cutting speed and T is tool life. n is the tool exponent which is found by experiment.