In vibration-assisted milling (VAM), an additional high-frequency oscillation is superimposed on the kinematics of a conventional machining process. This generates oscillations of the cutting edge in the range of a few micrometers, thereby causing a high-frequency change in the cutting speed and/or the feed. Consequently, a reduction of cutting forces, an increase of the tool life, and an improvement of the workpiece quality can be achieved. This paper shows and compares the effects of longitudinal and longitudinal-torsional (L-T) vibrations on the cutting force, the tool life, and the surface quality when milling Ti-6Al-4V. In comparison with the conventional milling process, the cutting forces are significantly reduced and the surface finish of the workpiece can be improved by introducing ultrasonic vibrations to the milling process. Longitudinal-torsional vibration assistance showed better overall process performance than the pure longitudinal vibration assistance.

在振动辅助铣削（VAM）中，传统的加工过程的运动学上会叠加一个额外的高频振荡。这在几微米的范围内产生切削刃的振荡，从而引起切削速度和/或进给的高频变化。因此，可以实现切削力的减小，工具寿命的增加以及工件质量的改善。本文显示并比较了铣削Ti-6Al-4V时纵向和纵向扭转（LT）振动对切削力，刀具寿命和表面质量的影响。与常规铣削工艺相比，通过将超声振动引入铣削工艺，切削力显着降低，并且工件的表面光洁度得到改善。