PCD Cutting Tools Preferred And Cutting Parameters Optimization For Titanium Alloy Turning

Titanium alloy material is widely applied in aerospace industry owing to itsexcellent comprehensive properties. But titanium alloy is typical difficult-to-work material with low cutting efficiency, short tool life and high processing cost.Therefore, it is urgent to solve the problems of studying the application of newmaterial tool in the titanium alloy high efficient cutting and improving the levelof titanium alloy processing. This paper carried out in-depth research on the PCDtool cutting titanium alloys.Aim on the Preferred of PCD tool when cutting titanium alloys，this paperhad done an experimental Design by using the Orthogonal test methods, andsimulated titanium alloy three-dimensional cutting process in finite elementanalysis software, preferred the geometric parameters of tools by test objectivesof cutting forces and temperature. From the analysis of PCD tool wear bydifferent manufacturers, we had concluded that the low granularity PCD toolwith better wear characteristics when cutting titanium.Systematic analyzed the impact of cutting parameters to cutting force,cutting vibration, cutting temperature and surface roughness, and then optimizedthe cutting parameters. All of that was based on the Experimental study ofefficient PCD tool cutting titanium. Established a predictive model of cuttingforce, cutting temperature and surface roughness by the orthogonal experimentaland regression analysis methods, and then carried on error analysis andsignificance test. The results showed that the prediction equation can beeffectively forecasting the cutting force, cutting temperature and surfaceroughness.Analyzed the impact of wear mechanism and tool flank wear to the cuttingforce and cutting vibration based on the PCD tool wear and life test study wh en cutting titanium alloys, and this paper had established tool life prediction model.Established optimization mathematical model witch the objective functionwas Maximum metal removal rate and the longest tool life. Optimized cuttingparameters witch restricted by cutting parameters, cutting force, cuttingtemperature and surface roughness by using MATLAB software. It wouldprovided a reference for the titanium alloy machining process improvement.