Research Of Tool Wear In High-Efficiency Cutting Titanium Alloy

High-efficiency cutting technology is a hot research topic in the field of modern manufacturing, which has been widely used after years of development on some basic material. But there are still many technical problems in cutting processing of the superior performance of titanium alloy materials, such as Manufacturing efficiency, Friction Tool and wear. This paper mainly studies in view of the titanium alloy Ti6A14V efficient thermal characteristics of the force in the process of machining and tool-chip interface friction characteristics, and the cutting tool wear mechanism of titanium alloy and the damage form is analyzed. It provides theoretical for studying the characteristics of the friction between cutter and workpiece material and the judgment standard of tool grinding blunt, also provides technical support for reasonable cutting parameters and extend the service life of cutter.Firstly,change by cutting dosage for turning test, study of cutting force and cutting temperature, then the thermodynamic characteristics of cemented carbide cutting tool cutting of titanium alloy are studied. On the basis of the analysis of the impact of tool wear cutting force and heat. Turning comparative tests under different cooling conditions, analysis of the influence of cooling conditions of the use of titanium alloy cutting process.Secondly, on the basis of tribology,carry out a study about tool-chip contact properties of rake face. By analysis of the metal cutting process, the tool-chip interface bonding area and sliding area chip flow form were studied, and according to the local stress distribution form in contact region of tool-chip analysis of bonded zone and the characteristics of sliding area, combining with the analysis model and simulation experiment mixed model for the coefficient of friction sliding zone. Intuitive description the features off riction between the tool and chip in cutting titanium alloy.Thirdly, conducting a key research aims at the process of titanium alloy Ti6A14V turning tool wear mechanism. On the basis of tool wear test, analysis of the cutting force-thermal load combination and the relationship between the tool wear. Through the analysis of the elements, wear testing tool bonding, oxidation and diffusion effects on tool wear. And analysis the interaction mechanism among oxidation, diffusion and bonding,which was based on the process of tool wear.At last, conduct a study about cutting tool grinding blunt judgment method. Through the analysis of forming process machined surface, study the relationship among the degree of tool wear, cutting force, and the surface residual stress. According to the titanium alloy cutting process of carbide tool wear sharp features,discuss the process of the cutting edge blunt round wear. Establish the mechanical model of cutting edge of blade area, in combination with the theoretical analysis with a cutting edge blunt round is proposed on the basis of the wear volume for the judgment method of the scale. Then with the blade wear of cutting tool residual stress test and cutting force simulation verify its feasibility.