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MR fluid can change viscosity in the presence of a magnetic field. A characteristic of MR fluid is reduced scattering during jetting. For these reasons a MR fluid jet polishing system can be used for ultra-precision polishing. In the current paper, the polishing path was calculated considering the aspherical lens profile equation and the experimental conditions for the MR fluid jet polishing system. Then the polishing of an aspherical lens mold core using the MR fluid jet polishing system with the calculated path control was made and the results were compared before and after polishing. Key Words : MR Fluid, Jet Polishing, Aspherical Lens, Path Control, Mold Core, Ultra Precision 1.                        CDP, ,        .                  [1].      DTM(Diamond Turning machine), 5    [2].                  .                       .          .               .                .            .                     . MR fluid jet polishing system

Path Control of MR Fluid Jet Polishing System for the Polishing of an Aspherical Lens Mold Core