In order to select suitable cutting tools to save production costs,the cutting process of AISI4340 material by common CBN tools and surface textured CBN tools under different working conditions was simulated by finite element method.The cutting performances of common tools and surface textured tools under different friction coefficient were studied,and the distribution of cutting force,cutting temperature and stress field under different friction coefficient were obtained.The results show that the temperature and stress and strain of common tools and surface textured tools are increased with the increasing of the friction coefficient.However,when the friction coefficient increases to a certain degree,the rise of temperature,the stress and strain of the surface textured tools will be slowed down compared with the common tools,which is beneficial to prolong the service life of the tools.The conclusion can be drawn that when the friction coefficient of cutting process is less than 03,common tools can be used to save production costs.When the friction coefficient increases above 03,the temperature,cutting force and stress distribution of the textured tool has obvious advantages over that of the common tool.The service life of the tool can be prolonged by using the textured tool.