Stability of turning process with tool subjected to compression

This study investigates how the stability of the turning process changes when the tangential component of the cutting force is also taken into account as a compressive force acting on the cutting tool. The tool is modelled by a cantilever beam; the mathematical model is based on the Euler-Bernoulli beam theory. The effect of compression appears through the lateral stiffness of the tool. Two cases are separated in connection with the compressive force: constant and varying forces. Since compression reduces the natural frequency of the cutting tool, this also affects the stable region of the turning operation.