Experimental Study And Finite Element Simulation Of Titanium Alloy

With the development of the production, application of titanium alloys is not only confined to the field of aviation and military, but also is increasingly being used in the production of all aspects of life. However, because of its unique material properties, we can not get better processing efficiency and lower processing costs.Therefore,it's of great significance to study machinability of titanium alloys for improve the processing efficiency.Cutting forces, surface roughness, tool wear and chip control are the major indexes reflecting cutting process.. In this paper, the titanium research of cutting performance first is carried out from the cutting experiments. Research on the cutting force and surface roughness with changes in the law of cutting parameters(feed tolerance,depth of cutting and cutting speed) was worked over. The empirical formula of cutting force and Surface roughness was obtained.At the same time,tool wear and the conformity of exhausting cutting chips was studied. In the process of cutting titanium alloy, tool wear patterns and chip morphology was obtined And analize its influencing factors.In the end, the reasonable cutting parameters in ordeer to improving the surface roughness , exhausting cutting chips, reducing the cutting force and tool wearModeling and simulation of cutting processes have the potential for improving tool designs and selecting optimum conditions. Finite element method is becoming one of method to research and simulate the cutting processes. The one objective of this study was to develop a FEA model for simulating the cutting process in turning and predict cutting forces and temperatures using finite element analysis. On the basis of pre-data collection of the workpiece flow stress and high strain rate and high temperature friction coefficient, Simulation of cutting process is set up by using of finite element software DEFORM-3D. Analyze the cutting temperature changes of the cutting process.Comparisons of predicted forces measured forces showed similar trends and reasonable agreement...