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Effect of Fluid Viscosity and Iron-Fluid Composition on Damping Ability of Magnetorheological Damper during Hard Turning Process

P. Sam Paul, D. Madhan, R. Manikandan, Joyal Joseph

Abstract


In manufacturing industry where metal cutting operation take place, tool vibration is an undesirable phenomenon which affects surface finish of the work piece, tool life and cause discomfort to human personal. In order to avoid tool vibration, the concept of magnetorheological (MR) damper was considered in this study. When a magnetic field is applied to the MR fluids, particle chains form and the fluid becomes a semisolid. This transition is reversible and can be achieved in a few milliseconds. But the damping ability of MR Damper is highly influenced by viscosity index of the fluid and composition of iron fluid mixture. In this paper, the effect of viscosity of the fluid and iron-fluid mixture composition on tool vibration and cutting performance was investigated during turning of hardened AISI 4340 steel. From the result, it was observed that tool vibration reduced effectively when magnetorheological fluid had higher viscosity and higher iron-fluid composition. Also in this paper, the turning tool holder was analyzed using ANSYS software with and without damping effect. From the experimental and computational results, it was observed that the use of magnetorheological damper reduces tool vibration effectively.

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References


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DOI: https://doi.org/10.37628/ijmd.v2i2.38

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