EXPERIMENTAL INVESTIGATION INTO MAGNETORHEOLOGICAL FINISHING OF POLYMER VALVE SEAT SURFACE FOR BALL VALVE PERFORMANCE

Kunal Arora, Amrinder Singh Uppal and Anant Kumar Singh
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Kunal Arora: Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
Amrinder Singh Uppal: Merla LLC, Houston, TX 77060, USA
Anant Kumar Singh: Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India

Surface Review and Letters (SRL), 2025, vol. 32, issue 11, 1-17

Abstract: A polymer valve seat is an essential component of ball valves. However, a gas pipeline valve leakage during the gas or oil transportation process causes major issues. Therefore, the fine finishing of the polymer valve seat is important. This work describes the effect of the magnetorheological finishing (MRF) process on the surface characteristics of the polymer valve seat. To achieve a finely finished polymer valve seat surface, the best process parametric combination of current, workpiece rotational, and tool rotational speed are obtained using the response surface methodology. The optimum process parameters are further used to enhance surface characteristics (including surface roughness, microhardness, and surface morphology) through fine finishing. Using the optimum process conditions, the surface roughness was reduced to 110 nm from 570 nm in 140 min of finishing on a 4878 mm2 surface area of the polymer valve seat. The circularity of the valve seat surface’s dimensional correctness is investigated further. The current MRF process can fine-finish the polymer valve seat surface consistently, resulting in improved surface characteristics and functional performance.

Keywords: Polymer valve seat; magnetorheological finishing; hemispherical tool surface; electromagnetic tool; surface roughness; dimensional accuracy; surface morphology (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1142/S0218625X25500027

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