Numerical Simulation Of Titanium Alloy TC4 Grooving Tool Turning Wear

Titanium alloy TC4 has been widely used in the aerospace industry since the emergence because of excellent performance,however,the property of titanium alloy TC4 is difficult to machining,and tool wear serious,high processing costs,difficult to control the quality of parts,processing low efficiency.Tool wear has hindered the development of titanium alloy to a certain extent,therefore,the research on the machining performance of titanium alloy has been the focus of people's research,and a lot of research has been done on the wear pattern,wear mechanism and wear morphology of the tool.And there are a large number of applications grooving tool in the aerospace parts processing,for example,aero engine piston ring groove,rivet ring groove.And the tool work environment is closed,chip removal difficulties,cutting heat dissipation,cutting temperature and tool wear more prominent.However,the research on the wear problem of the grooving tool is less,so this paper studies the wear of the grooving tool.In this paper,the wear problem of carbide grooving tools were studied during the turning process of titanium alloy TC4,and the traditional test method is limited by the test level is difficult for the cutting process of tool temperature,tool force,tool wear and other information for real-time capture and observation since the cutting process is a highly nonlinear dynamic process.The numerical simulation technology has a unique advantage and great development potential because of its strong theoretical,intuitive and real-time performance.It has become an effective method for cutting machining research in metal cutting research.Therefore,this paper applies the numerical simulation method to simulate the tool temperature,cutting force and tool wear during the cutting process.Through the study of the tool wear situation with the process parameters and tool geometric parameters of the law,and the application of cutting process parameters optimization and the design of the rake face microstructure of the two measures to improve the processing of tool wear serious problems.The results show that the tool temperature and wear rate prediction model have good prediction effect,and the optimization parameters can effectively reduce the tool temperature and tool wear rate by using the optimization algorithm.The process of turning the titanium alloy ring groove by cutting the cemented carbide grooving tool in four types of normal,convex body,groove,pit,It is found that the structure of the rake face structure can effectively reduce the maximum temperature of the rake face of the tool,improve the wear of the rake face,reduce the cutting force and reduce the power consumption,among which the texture is the best in the form of groove.The results can provide reference for tool design and process parameter optimization.