Vibration signal and roughness correlation during Ti alloy milling using uncoated and coated Ti-based cutting tools

Abstract. This work evaluates the coated and uncoated (4 flutes) tools´ performance in the milling of Ti-6Al-4V alloys in a lubricated environment using three different cutting speeds and two different feed rates. This was planned because there is no conclusive analysis in the literature between the variation of the vibration signal, the quality of the milled surface and the tool performance. Concerning tool wear, the vibration analyses were correlated with surface roughness and optical microscopy results.