You have to take values from the dynamo meter  and  then you have to make plot in the excel F/Displacement and then you will take the gradient 

Hi there,

For theoretical and orientation (only) calculations you can use calculators, like the one from the link below:

https://www.kennametal.com/en/resources/engineering-calculators/slotting-calculators/force-torque-and-power.html

I agree with Mamas. You have to take values from the dynamo meter and then you have to make plot in the excel F/Displacement and then you will take the gradient 

f you want you can test with the formulas in the word attach, and using phis = 180°.

This information is from Walter Tools web page.

For calculate the cutting force you need to apply:

Fc = kc x Zc x S

Where Fc = cutting force in N;

kc = Especific cutting force in N/mm2

Zc = number of teeth in contact

S = cutting area

Zc = (Z*Phis)/360°; Z = total teeth of mill cutter

S = ae x hm

How can calculate average force for slot milling process?. Available from: https://www.researchgate.net/post/How_can_calculate_average_force_for_slot_milling_process [accessed Jul 26, 2017].