A solution for minimising vibrations in milling of thin walled casings by applying dampers to workpiece surface

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Abstract

Milling of large thin walled casings with complex features needs appropriate damping solutions to achieve required workpiece surface quality when utilising aggressive machining parameters. In this paper a novel surface damping solution composed of a thin flexible layer mounted with distributed discrete masses attached with viscoelastic layer is presented. Damping of higher frequencies through a flexible layer and subsequent lower frequencies through added masses enables damping over a wide bandwidth. Finite element modelling and validation of the proposed solution showed a significant damping of workpiece and corresponding reduction in machining vibration by more than four times. © 2013 CIRP.

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Kolluru, K., Axinte, D., & Becker, A. (2013). A solution for minimising vibrations in milling of thin walled casings by applying dampers to workpiece surface. CIRP Annals - Manufacturing Technology, 62(1), 415–418. https://doi.org/10.1016/j.cirp.2013.03.136

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