When precision cutting titanium alloy, the cutting part of cutting tool is mainly concentrated in the cutting edge area, so there is a strong emphasis upon the cutting edge’s geometric parameters. Studies have found that putting a micro-texture on the cutting surface can reduce the cutting force. This article looks at the milling force involved in cutting titanium alloy with a micro-textured ball-end milling cutter with different shaped cutting edges. First, a milling model relating to different cutting edges is established based on the traditional model of milling force. Then, the effects of different cutting edge geometry parameters and micro-texture parameters on milling force are simulated and tested using a finite element method. With milling force serving as the evaluation index, the optimum micro-texture parameters for a blunt circular cutting edge are a micro-pit diameter of 40 μm, a distance between micro-pits of 175 μm, a distance from the cutting edge of 110 μm, and a blunt circle radius of 60 μm. For a negative chamfer edge, the optimum parameters were a micro-pit diameter of 50 μm, a distance between micro-pits of 175 μm, a distance from the cutting edge of 120 μm, an edge width of 200 μm, and an edge angle of 10°.

在精密切削钛合金时，切削工具的切削部分主要集中在切削刃区域，因此非常重视切削刃的几何参数。研究发现，在切割面上放置微纹理可以降低切割力。本文研究了使用具有不同形状切削刃的微细化球头铣刀切削钛合金时所涉及的铣削力。首先，基于传统的铣削力模型，建立了与不同切削刃有关的铣削模型。然后，使用有限元方法模拟并测试了不同的切削刃几何参数和微观纹理参数对铣削力的影响。以铣削力作为评价指标，钝的圆形切削刃的最佳微观纹理参数是40μm的微坑直径，175μm的微坑之间的距离，110μm的切削刃距离和60μm的钝圆半径。对于负倒角边缘，最佳参数是微坑直径为50μm，微坑之间的距离为175μm，距切削刃的距离为120μm，边缘宽度为200μm以及边角10°