Quantitative analysis on crater wear of cemented carbide inserts when turning Ti-6Al-4V

Process and rate of the crater wear development on the rake face of uncoated cemented carbide inserts were investigated when Ti-6Al-4V alloy was turned under dry cutting conditions. Contour maps were outlined to study the relationship between the area of the contour region and its wear depth. An effectively predictive method was proposed to predict wear-related quantities of the crater, including the crater depth, wear area, and wear volume. The predictive method was verified by the experiments with different cutting parameters. The development rate of the crater with the wear depth was acquired by analyzing the relationship between the area of the contour boundary region and its wear depth, and reasons on a sharp increase of the development rate were discussed at the wear depth of (KT-1) or (KT-2). The relationship between the area of the contour region and cutting time at a certain wear depth was proposed and could be used to predict the wear-related quantities of the crater.