切屑流出角是切削加工中预报切屑流向的重要参数，且对切屑控制具有指导意义。基于DEFORM-3D有限元仿真软件，建立圆角刀具切削仿真模型，系统研究了刀具位姿、切削深度、进给量、切削速度及工件材料等参数对切屑流出角的影响。研究结果表明：刀具绕X轴和Z轴旋转时，随旋转角增加切屑流出角逐渐减小，而绕Y轴旋转时切屑流出角基本不变；随着切削深度增加，起初切屑流出角不断增大，当切削深度超过刀具圆角半径时刃口效应消失刀尖角不变，切屑流出角逐渐趋于稳定值；随着进给量增加，切屑流出角会逐渐减小；随着切削速度增加，切屑流出角会逐渐增大；工件材料的塑性越强，切屑流出角越大。通过对切屑流出角最大偏差值的比较可知，圆角刀具切削时切削深度对切屑流出角的影响最大，其偏差值为29.91°，其余因素对切屑流出角的影响程度从大到小依次为切削速度、刀具绕X轴旋转、刀具绕Z轴旋转、进给量、刀具绕Y轴旋转、工件材料。

The chip outflow angle is an important parameter for predicting the flow direction of chips in cutting, and it has guiding significance for chip control. Based on the DEFORM-3D finite element simulation software, a cutting simulation model for rounded corner cutting tools was established. The influence of tool pose, cutting depth, feed rate, cutting speed, and workpiece material parameters on chip outflow angle was systematically studied. The research results show that when the tool rotates around the X and Z axes, the chip outflow angle gradually decreases with increasing rotation angle, while the chip outflow angle remains basically unchanged when rotating around the Y axis. As the cutting depth increases, the initial chip outflow angle will continue to increase. When the cutting depth exceeds the tool fillet radius, the edge effect disappears and the tip angle remains unchanged. The chip outflow angle gradually tends to a stable value. As the feed rate increases, the chip outflow angle will gradually decrease. As the cutting speed increases, the chip outflow angle will gradually increase. The stronger the plasticity of the workpiece material, the greater the chip outflow angle. By comparing the maximum deviation values of the chip outflow angle, it can be seen that the cutting depth has the greatest impact on the chip outflow angle when cutting with rounded corner tools, with a deviation value of 29.91°. The other factors that affect the chip outflow angle in descending order are cutting speed, tool rotation around the X-axis, tool rotation around the Z-axis, feed rate, tool rotation around the Y-axis, and workpiece material.