In this study, the finite element method (FEM) is used to study the ploughing effect of ultrasonic vibration-assisted cutting Ti6Al4V. Due to the existence of the cutting edge radius of the tool, there will be a ploughing area in the cutting of Ti6Al4V. The ploughing area is an area where the stress state is very complex in the cutting process. The ploughing force and temperature of the ploughing area are important factors that affect the machined surface quality and tool wear. The main research of this paper includes the establishment of ploughing force, temperature and dynamic friction coefficient model of the ploughing area, and the correctness of the analysis model is verified by using the finite element method. Then, by changing the cutting conditions, the influence of changing the cutting parameters on the ploughing effect is discussed. The results show that the analysis model can be used to monitor the ploughing force and ploughing area temperature, and ultrasonic vibration-assisted cutting can significantly reduce the ploughing force and ploughing area temperature, reducing tool wear and plastic deformation of the machined surface.

在这项研究中，使用有限元方法（FEM）来研究超声振动辅助切削Ti6Al4V的耕作效果。由于刀具的切削刃半径的存在，在切削Ti6Al4V时将有一个耕作区。耕作区域是在切割过程中应力状态非常复杂的区域。耕作区域的耕作力和温度是影响机加工表面质量和工具磨损的重要因素。本文的主要研究内容包括犁地力，犁地温度和动摩擦系数模型的建立，并通过有限元方法验证了分析模型的正确性。然后，通过改变切削条件，讨论了改变切削参数对耕作效果的影响。