Patent ID: 6661157
Filing Date: 2003-12-09
Classification: F16F

Abstract:
A tool for chip removing machining comprising:a shank defining a longitudinal axis and including a clamping end adapted for clamping the shank in a machine, and free end disposed longitudinally opposite the clamping end; a cutting element disposed at the free end of the shank; and a pair of flat piezo-elements mounted on respective opposite regions of the shaft at a location adjacent to the clamping end, each piezo-element being shorter than the shank, wherein a direction of polarization of each piezo-element is substantially parallel to the longitudinal axis, and a logic circuit operably connected to the piezo-elements and connectible to an external voltage source for energizing the piezo-elements, wherein both piezo-elements function together to define an actuator for actively dampening bending vibrations of the shank.