%A CHEN Yan, YANG Shubao, FU Yucan, XU Jiuhua, SU Honghua %T FEM Estimation of Tool Wear in High Speed Cutting of Ti6Al4V Alloy %0 Journal Article %D 2013 %J Acta Aeronautica et Astronautica Sinica %R 10.7527/S1000-6893.2013.0306 %P 2230-2240 %V 34 %N 9 %U {https://hkxb.buaa.edu.cn/CN/abstract/article_15222.shtml} %8 2013-09-25 %X

By adopting the finite element method (FEM), the tool wear is simulated during the cutting of titanium alloy with a carbide tool. First, a wear rate model, which includes the abrasive wear, diffusion wear and adhesion wear, is built according to the tool wear mechanism during the cutting. Then a series of problems in tool wear simulation are solved such as the simulation of the cutting temperature field, adjustment of internal mesh, and the smoothing of tool geometry. Subsequently, an FEM wear prediction model is built and computed in combination with a wear subroutine. The validity of the finite element model is confirmed by cutting tests, which show that the tool rake face wear and wear morphology can be accurately predicted by the finite element model. Finally, tool life is predicted under the conditions of high-speed cutting of titanium alloys. The prediction results show that the cutting tools wear rapidly with the increase of the cutting speed. For example, the tool life with a cutting speed of 300 m/min is only one third of that with a speed of 130 m/min. Therefore, it is important to consider both cutting efficiency and tool life simultaneously in the selection of a cutting speed.