Experimental Research on Technological Parameters of Magneto-Rheological Finishing for Metal Materials

MRF (Magneto-rheological Finishing) is a kind of new technology which carries on fine polishing to the workpiece surface by using rheological property of MR fluids. A set of simple experimental equipment has been designed in this paper and magnet was selected for device forming magnetic filed. The main parameters of MRF which influence the surface quality of the metal material has been analyzed. The rule of the influence on surface roughness varying with several parameters has been summed up. The experiment results show that with the increase of magnetic field intensity, the value of surface roughness of workpiece decreases; the value increases with the increase of rotational velocity.The value of surface roughness of workpiece is in inverse proportion to the processing time. With the increase of time, the value of surface roughness of workpiece has been decreasing to basically stable after a certain amount of processing time.