Abstract
Tuned mass dampers (TMD) are an established method to reduce self-excited chatter vibrations in turning. Regarding boring bars, the susceptibility to chatter increases with increasing length and, even more, with decreasing tool diameter.A novel TMD for boring bars with diameters down to 10mm is presented. The TMD-design, consisting of a mass and a spring-damper combination, is based on analytical and numerical modelling. By using a futed boring bar design, the available design space allows to place a damping mass of sufcient mass ratio at the tool tip. Cutting tests showed the reduction of vibrations.
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