Grinding wheel topography and its grinding performance was studied using an experiment, in which the truing operations were varied according to a factorial design. The correlation of wheel topography and its performance is characterised through the employment of three-dimensional surface characterisation parameters. The density of summits Sds, the summits curvature Ssc, and the root-mean-square roughness Sq are used to characterise the density of abrasive grains, the sharpness of abrasive grains, and the coarseness of the wheel, respectively. A new criterion for selecting the optimal sampling interval (Sal / 4 ≤ Δ ≤ Sal / 3) is also proposed.
- surface characterisation
- wheel topography