Turning cutting tool with large length–diameter ratio has been essential when machining structural part with deep cavity and in-depth hole features. However, chatter vibration is apt to occur with the increase of tool overhang. A slender turning cutting tool with a length–diameter ratio of 7 is developed by using a vibration absorber equipped with piezoelectric ceramic. The vibration absorber has dual functions of vibration transfer to the absorber mass and vibration conversion to the electrical energy via the piezoelectric effect. Equations of motion are established considering the dual damping from the piezoelectric ceramic and rubber gasket. The equivalent damping of piezoelectric ceramic is derived, and the geometries are optimized to achieve optimal vibration suppression. The modal analysis demonstrates that the cutting tool with the vibration absorber can reach 80.1% magnitude reduction. Machining tests are carried out in the end. The machining acceleration and machined surface roughness validate the vibration suppression of the VA, and the output voltage by the piezoelectric ceramic demonstrates the ability of vibration sensing.

在加工具有深腔和深孔特征的结构零件时，必须使用长径比大的车刀。但是，随着刀具悬伸的增加，颤振易于发生。通过使用装有压电陶瓷的减振器，开发出了长径比为7的细长车削刀具。减振器具有将振动传递到减振器质量以及通过压电效应将振动转换为电能的双重功能。考虑压电陶瓷和橡胶垫圈的双重阻尼，建立了运动方程。推导了压电陶瓷的等效阻尼，并优化了几何形状以实现最佳的振动抑制。模态分析表明，带有减振器的切削刀具可减少80.1％的振幅。最后进行机加工测试。加工加速度和加工表面粗糙度验证了VA的振动抑制，并且压电陶瓷的输出电压显示了振动感应的能力。