Regenerative
chatter during centerless grinding processes is one of the main factors
limiting the productivity. This paper presents a novel chatter suppression
technique for centerless grinding using an active damping system based on
inertial actuators. Dynamic characterisation of the machine with and without
active damping is used first to compute theoretical stability maps.
The active
nature of the system allows stabilising a wide working range of infeed
operations. Finally, experimental results validate the predicted increase of
stable grinding area and verify that the technology is very effective for
avoiding chatter, ensuring workpiece quality and increasing process productivity.
