Regenerative chatter is a major limitation in the milling of Ti-6Al-4V, resulting undesirable surface and reducing cutting efficiency. It well-acknowledged that variable pitch cutter process damping effect are effective methods to suppress chatter, these two compatible. In this paper, novel anti-vibration tool with combined (pitch angles 85°-95°-85°-95°) wear edges (60 μm on flank face), which ...

We consider the effect of random variation in the material parameters in a model for machine tool vibrations, specifically regenerative chatter. We show that fluctuations in these parameters appear as both multiplicative and additive noise in the model. We focus on the effect of additive noise in amplifying small vibrations which appear in subcritical regimes. Coherence resonance is demonstrate...

We have analyzed vibrations generated in an orthogonal cutting process. Using a simple one degree of freedom model of the regenerative cutting we have observed the complex behaviour of the system. In presence of a shaped cutting surface, the nonlinear interaction between the tool and a workpiece leads the to chatter vibrations of periodic, quasi-periodic or chaotic type depending on system para...