Abstract:During the cutting process of titanium alloy, serious work hardening phenomenon will occur, which leads to the decrease of machinability and the aggravation of tool wear, and directly affects the machining quality of the workpiece. In order to study the cutting performance of titanium alloy and tool wear mechanism, the finite element model of titanium alloy was established by using ABAQUS software, the cutting process was simulated and analyzed, and the wear mechanism of the cemented carbide tool was studied. The Ti6Al4V titanium alloy turning experiment was designed to study the influence of different machining parameters on the wear degree of the tool. The results show that when cutting titanium alloy, the tool wear mainly occurs at the tip and back face. The tool wear length increases with the increase of turning speed, decreases with the increase of turning depth, and decreases first and then increases with the increase of feed. The experimental and simulation results are consistent, with an average error of less than 6%.