Too fast tool wear is a difficult problem in the cutting process of Ni-based superalloy GH4169

so it is of great significance to study the tool wear characteristics. The simulation model of groove characteristic tool is established by DEFORM software. The influence of the wear on the cutting process is revealed. The accuracy of the simulation model is verified by turning experiment

and the influence of different flank wear on cutting force and cutting temperature is obtained. At the same time

the blunt standard of cemented carbide cutting tools is also obtained. The analysis results have good guiding significance for process optimization during finishing process of Nibased superalloy.