Proposal of novel chatter suppression method by utilizing anisotropic dynamics

提出了一种新的镗削颤振抑制方法。设计了具有各向异性动力学特性的圆柱体周向阶梯槽各向异性镗刀。由于所提出的刀具的直接和交叉传递函数分量被设计为抵消每一个振动，镗孔刀具在切削过程中的标称柔度可以显着降低。所开发的工具的锤击测试澄清，适当的各向异性频率响应函数大致达到所提出的设计。开发的工具随后被应用到车削实验，它被澄清，在径向切削深度的稳定性极限显着增加，通过使用建议的镗刀相比，普通的镗刀。

A novel chatter suppression method in boring operation is proposed. The anisotropic boring tool with a step portion and notches on the cylinder periphery is designed, which has anisotropic dynamic characteristics. Since the direct and the cross transfer function components of the proposed tool are designed to cancel out each vibration, the nominal compliance of the boring tool in cutting process can be reduced significantly. Hammering tests of the developed tool clarified that appropriate anisotropic frequency response function is roughly attained by the proposed design. The developed tool was subsequently applied to turning experiments, and it was clarified that the stability limit in the radial depth of cut significantly increases by using the proposed boring tool as compared to the ordinary boring tool.