Study on force-thermal characteristics of ball end milling cutter with chamfered edge and micro-textured flank face

Micro-texturing can significantly improve the cutting performance of tools. During the titanium alloy cutting process, the cutting depth is relatively small, and the flank face mainly bears the friction. To overcome this issue, this study attempts to explore the influence of the micro-texture of the flank surface and chamfered edge on the cutting performance of the ball end mill. It is proved that the micro-texture of the flank surface of ball end milling cutter can reduce the actual contact area and friction, and thus reduce the cutting force. The increase of chamfering width and Angle changes the chip state and provides a good heat dissipation environment. Under the combined action of chamfered cutting edge and micro-texture, the force and heat in the milling process are reduced, and the tool life is increased to some extent. The results show that the optimum combination of chamfering and micro-texture parameters is as follows: chamfer angle is 10 degrees, chamfer width is 100 mu m, diameter of the micro-circular pit is 70 mu m, pit spacing is 125 mu m, and distance from cutting edge is 110 mu m.