Abstract
In this study, Ti-6Al-4V alloy was machined at high cutting speed of 200m/min, and the tool wear progress and the cutting mechanics were experimentally investigated in order to clarify an effective cooling method. The cooling method used in this study was four kinds of cooling method, namely dry, wet, oil-mist, and oil-water-mixed mist. The results obtained as follows; In the cutting with the TiAlN coated cemented carbide tools at the cutting speed 200 m/min, the wear progress in the oil mist cutting and oil-water-mixed cutting were slower than that in dry and wet cutting.