The investigation of material removal in bonnet polishing of CoCr alloy artificial joints

In the process of form control using bonnet polishing an influence function is of vital importance for establishing material removal rates. However, the effects of polishing cloth, workpiece hardness and polishing parameters (such as precess angle, head speed, tool pressure and tool offset) on influence function when polishing CoCr alloys are not yet established and these factors affect the deterministic polishing process. In order to obtain a controlled polishing process, this study has further investigated the effects of polishing parameters on the influence function, including geometric size and volumetric material removal rates (MRRs).