INFLUENCE OF TOOL ATTACHMENT PARAMETERS ON THE NONLINEAR DYNAMICS OF MULTI-CUTTER TURNING PROCESS

Abstract

This paper studies the influence of tool attachment parameters on the nonlinear dynamics of multi-cutter turning. The continuous cutting stability with constant chip thickness in multi-cutter turning process is evaluated through the self-oscillating excitation possibility of the cutters using the Poincare - Andronov - Hopf dynamical bifurcation diagram. Changing the tool attachment parameters conditions results in a change of the stability diagram with the boundary curves displacement between the stable and unstable regions of continuous cutting process. In addition, simulating the dynamic characteristics of the cutting process such as tool vibration, chip formation, etc. allows to evaluate the influence of tool attachment parameters on the nonlinear dynamic of the multi-cutter turning process.