In the milling process, the coupling deflection and the dynamic characteristics of the cutter–workpiece system are time variant as the material removal and the change of cutter position. The milling stability of the system is dynamic because of the time-varying stiffness. In this study, the model of time-varying system has been developed. Variable pitch cutter (VPC) and variable spindle speed (VSS) are, respectively, typical method of passive control and active control to suppress the chatter, and two methods are compatible. The arithmetic of VPC and VSS combined method has been developed and verified effectively. Dynamic milling stability prediction of stiffness time-varying system for thin-walled components based on VPC and VSS combined method has been developed. And then, the dynamic milling stability of stiffness time-varying system for thin-walled components has been predicted.

在铣削过程中，随着材料的去除和刀具位置的变化，刀具-工件系统的联轴器挠度和动力学特性会随时间变化。由于时变刚度，系统的铣削稳定性是动态的。在本研究中，开发了时变系统模型。可变螺距铣刀（VPC）和可变主轴转速（VSS）分别是抑制颤动的被动控制和主动控制的典型方法，并且两种方法兼容。VPC和VSS结合方法的算法得到了有效的开发和验证。建立了基于VPC和VSS组合法的薄壁零件刚度时变系统动态铣削稳定性预测方法。然后，