球头刀铣削过程动力学模型

DYNAMIC MODELING OF BALL END MILLING

建立了考虑刀杆柔性的球头铣刀铣削振动模型,探讨了交变轴向力对刀杆固有频率的影响。考虑刀具动态变形和工件表面波纹对切削厚度的再生反馈,建立了球头刀铣削动力学模型,对铣削中的动态铣削力和刀杆振动进行了仿真,证明了离线仿真可以对铣削过程动特性做出预测。

The vibration model of ball end milling process considering the effect of cutter flexibility is presented. The influence of the axial force on the inherence frequency of the cutter is studied. Considering the feedback of dynamic deflection of the cutter and vibration mark on the milled surface on the transient chip thickness, model of dynamic milling process is developed. Furthermore, corresponding simulations are made. It is shown that offline simulation could give predictions to dynamic features of milling process.