Based on the dynamic magnetic field magnetorheological effect(DMFME) polishing technology, the characteristics of polishing normal force of DMFME polishing pad is tested and analyzed by the micro piezoelectric sensor. The influences of the revolving speeds of magnetic pole, the machining gaps, the movement methods of workpiece on the polishing force are researched. It is found that the maximal MR effect plane polishing normal force of DMFME appeared on the central zone, but the maximal pv value came up in the radius of 6 mm. Compared with the static magnetic field, the MR polishing force and the torque presented significant dynamic behavior under the dynamic magnetic field formed by the rotating magnetic pole. The dynamic magnetic field became more remarkable when the revolving speed of magnetic pole greater than 15 r/min, and the best DMFME is acquired when the speed is 30 r/min. The movement methods of workpiece also affected the DMFME polishing force. The torque is varied violently when the workpiece oscillated along the polishing plate. The normal force of DMFME polishing drastically increased when the machining gaps is reduced, its maximum peak reached 25 times of the steady state value.
PAN Jisheng
,
YU Peng
,
YAN Qiusheng
. Experimental Investigations on the Polishing Forces Characteristics of Dynamic Magnetic Field Magnetorheological Effect Polishing Pad[J]. Journal of Mechanical Engineering, 2018
, 54(6)
: 10
-17
.
DOI: 10.3901/JME.2018.06.010
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