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Chip geometry and cutting force prediction in gear hobbing
CIRP Annals ( IF 4.1 ) Pub Date : 2021-05-19 , DOI: 10.1016/j.cirp.2021.04.082
Milad Azvar , Andrew Katz , Jacob Van Dorp , Kaan Erkorkmaz

This paper presents a tri-dexel geometric engine integrated simulation model for the gear hobbing operation. The process kinematics are modeled and validated using CNC signals from a Liebherr LC500 hobbing machine. Workpiece geometry updating and cutter-workpiece engagement (CWE) calculations are efficiently realized in the tri-dexel engine. 3D force contributions at discretized nodes along the hob's cutting edges are computed considering the localized principal cutting directions, and rake and inclination angles. To measure cutting forces, a rotary dynamometer is successfully adapted and used alongside a Kalman filter to compensate for structural dynamics. The predicted forces agree well with their experimental counterparts.



中文翻译:

滚齿加工中的切屑几何形状和切削力预测

本文提出了一种用于滚齿加工的tri-dexel几何发动机集成仿真模型。使用来自利勃海尔 LC500 滚齿机的 CNC 信号对过程运动学进行建模和验证。工件几何更新和刀具-工件啮合 (CWE) 计算在 tri-dexel 引擎中有效实现。考虑局部主切削方向、前角和倾角,计算沿滚刀切削刃的离散节点处的 3D 力贡献。为了测量切削力,旋转测功机被成功调整并与卡尔曼滤波器一起使用,以补偿结构动力学。预测的力与他们的实验对应物非常吻合。

更新日期:2021-07-12
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