SPL Dampened Anti Vibration Boring Holder

To improve the performance of boring operations, a variable stiffness dynamic vibration absorber (DVA) is added inside the boring bar to reduce the vibration. The stiffness of the DVA is provided by two rubber bushes placed inside the DVA. A damped (also called tuned) boring bar has a hollow body with an inertia mass suspended between rubber bushes one at each end. The inertia mass is surrounded by a special oily liquid. When vibration starts, the dampening system absorbs the energy of the vibrations and minimizes it.