SURFACE QUALITY ENRICHMENT USING FINE PARTICLE IMPACT DAMPER IN BORING OPERATIONS

S.Devaraj, D.Shivalingappa, Channankaiah, Rajesh S Jangaler

Abstract: Boring operations are challenging owing to limited process performance due to inherent tool overhang and resulting vibrations. The tool vibrations can be suppressed with insertion of suitable damping methodology. The fine particle impact damping offers a better damping method. Due to its conceptual simplicity, potential effectiveness over a wide frequency range, temperature and degradation insensitivity and cost-effectiveness, particle damping is an attractive passive damping. The fine particles embedded within small hole in a vibrating structure to dissipate the exciting energy thereby damping the vibrations. The present work, investigates the improvement of surface quality of boring operation using fine particle impact damper. Substantial improvement of surface quality of the internally machined surfaces has been noticed in the experiments.

Keywords: Boring tool, Impact damping, Surface quality, Tool overhang, vibration control

DOI: https://doi.org/10.15623/ijret.2014.0302093