• Faheem Iqbal Malik
• Ajay Singh Rana

Another newly magnetorheological finishing tool has been developed to finish the external surfaces of cylindrical components. The cylindrical workpiece is connected to a rotating chuck and placed in between the permanent magnets The newly developed tool has ability to finish the external surface of cylindrical components with good accuracy. The MR polishing fluid is applied on the faces of magnetic, which gets stick on them under the action of magnetic field. The MR fluid produces a semi-solid layer over the surface of workpiece and does the job of finishing. The finite element (FE) analysis of distribution of magnetic field density with the working gap has been observed on Maxwell Ansoft V13 software. In the present work, the preliminary experimentations have been performed to evaluate the finishing capability of the present developed tool. Experimentations have been performed over the cylindrical workpiece made of copper which can be used as an electron discharge machining (EDM) electrode. In the present work, the shear force exerted by the abrasives to erode the roughness peaks from the external cylindrical surface and the resisting shear force by the workpiece material have also been evaluated mathematically. The finishing capability of the developed finishing tool has also been confirmed mathematically. After the experimentations of 45 minutes over the entire cylindrical workpiece made of copper, the surface roughness parameter Ra gets reduced from 228 nm to 98 nm with negligible surface defects which confirm the finishing performance of the developed finishing tool

Magnetorheological finishing, roughness, peaks, external diameters, variable surface.

"PERMANENT MAGNET TYPE MAGNETORHEOLOGICAL FINISHING TOOL FOR EXTERNAL CYLINDRICAL SURFACE ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.535-543, June-2019, Available :http://www.jetir.org/papers/JETIR1906C87.pdf

"PERMANENT MAGNET TYPE MAGNETORHEOLOGICAL FINISHING TOOL FOR EXTERNAL CYLINDRICAL SURFACE ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp535-543, June-2019, Available at : http://www.jetir.org/papers/JETIR1906C87.pdf