本文首先用有限元法对金属切削刀具温度场进行了理论分析,列出了计算公式,然后对典型的刀具进行了数值计算及实验对比。结果表明,有限元法能正确地计算切削刀具温度场。切削速度是影响刀具温度场最重要的因素,刀具材料及刀具与外界的换热系数对刀具温度场亦生产影响。最后,文中还指出了降低刀具切削温度的有效途径。 In this paper, the finite element method is used to analyze the temperature field of the metal cutting tool, the calculation formula is listed, and then the numerical calculation and experimental comparison of the typical tool are carried out. The results show that the finite element method can accurately calculate the cutting tool temperature field. The cutting speed is the most important factor that affects the temperature field of the tool. The heat transfer coefficient between the tool material and the tool and the outside world also affects the temperature field of the tool. Finally, the article also pointed out an effective way to reduce the cutting temperature of the tool.