12th Tooling Conference & Exhibition - Tooling 2022

During machining, the employed cutting tool experiences thermo-mechanical loads that cause wear
at the interacting surfaces, hence, limiting the tool life. The speed of chip sliding and contact pressure on the
tool dominate the magnitude of wear; therefore, these factors were considered in the developed interactive
friction model. Considering high heat generation results in a temperature increase in the cutting zone, the effect
of temperature was included in the developed model. The experimental results of the orthogonal cutting of
AISI304L steel with TiN coated WC cutting tool has been used to calibrate the model. The model has the
capability to adjust the friction and residual coating due to the enforced complex and dynamic loading (i.e.,
change in speed or pressure). Practical complex loading conditions of the orthogonal cutting have been
employed in the developed interactive friction model (IFM) to project the instantaneous behavior of coefficient
of friction as well as the residual coating thickness and coating depletion rate.