FINE SURFACE FINISHING OF CIRCULAR TAPERED MOULD CAVITY FOR LIGHT COVERS USING MAGNETORHEOLOGICAL GRINDING PROCESS

Ankit Aggarwal and Anant Kumar Singh
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Ankit Aggarwal: Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
Anant Kumar Singh: Department of Mechanical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India

Surface Review and Letters (SRL), 2022, vol. 29, issue 09, 1-20

Abstract: Moulds are used in industries to make plastic parts that require clear and defect-free surfaces. So, mould cavity surfaces must be finely finished. The novel magnetorheological grinding (MRG) process is employed in this study to fine finish the H13 circular tapered mould cavity surfaces, which are generally used for producing light covers. To achieve finely finished circular tapered mould cavity surfaces, the best process employing parametric combination of current, rotating workpiece, rotational and reciprocation speeds of MRG tool is obtained using the Taguchi technique. The roughness value on the circular tapered lateral and closed-end surfaces of the mould cavity decreased to 70nm from 450nm and to 60nm from 320nm, respectively, after using the present method with the best parametric combination. The surface characteristics improved significantly. Thus, the present process can help to achieve finely finished H13 circular tapered mould cavity surfaces for making clear and defect-free polycarbonate light covers.

Keywords: Magnetorheological finishing; tapered circular mould cavity surfaces; light covers; surface roughness; surface characteristic (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1142/S0218625X2250113X

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