and can reduce workpiece surface accuracy in finishing operations.
Several studies on friction modeling have tackled those issues,
with the goal of adopting model-based control schemes that forecast the motor torque required to compensate friction.
In order to reach a high material removal capability,
a machine must withstand process forces with limited displacements at the tool and the work piece.
A tool cutter undergoing large displacements produces a waved machined
surface, that, when cut by the subsequent cutter, will provoke
oscillating forces. This regenerative process can became
unstable, as studied by the classic chatter theory in metal
cutting operations [6]. Stability lobes diagrams can be
computed basing on the tool – work piece dynamic
compliance and cutting process parameters, indicating the
system vibration modes that mainly limit the material removal
capability.