A kind of cluster MRF pad performance testing device and method thereof
2014
The invention discloses a kind of cluster MRF pad performance testing device and method.Test device includes CNC machine main shaft, piezoelectric transducer, chaining pin, polishing disk, magnetic, cluster MRF pad, chaining pin is arranged on micro piezoelectric sensor, piezoelectric transducer is arranged on CNC machine main shaft, the stress sensitive surface of piezoelectric transducer is vertical with polishing disk institute's dynamometry direction, magnetic field generator is embedded in polishing disk, spraying MRF working solution on the burnishing surface of polishing disk, the outfan of piezoelectric transducer connects computer by A/D converter.The present invention can accurately measure cluster MRF pad to the normal pressure of chaining pin and shearing force, CNC system is utilized to control the relative position between chaining pin and polishing disk, the rotating speed of regulation polishing disk, the polishing force distribution of cluster MRF pad diverse location and different conditions can be measured, obtain normal pressure and shearing force along polishing pad radially and the change of normal direction, reach the purpose to cluster MRF pad performance detection by quantitative.
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