Abstract: Taking Al-6061 aluminum alloy as the research object, three-dimensional cutting simulation analysis was carried out based on Deform finite element analysis software. The orthogonal experimental design method was used to study the influence of the structural parameters of double chamfers on cutting force and cutting temperature. The simulation results show that the cutting force and cutting temperature are significantly reduced compared with those of chamfering with a single fixed value under the appropriate double chamfering width and angle. The research results can provide theoretical guidance for the optimization of the nose structure of chamfering tools and the actual cutting process.