Phenomenon of Lagging in the Values of Grinding Wheel Performance Characteristics Due to the Radial Transformation of the Cutting Surface of a Wheel under Abrasive Diamond Treatment

In the process of face grinding under multipass and plunge-feed treatment conditions, the cutting surface of a wheel sustains radial transformation. If the critical grinding rate is attained when the cutting surface of a wheel has no reserves for growth, a further increase in the grinding rate leads to the abrupt wear of wheels. Since the cutting surface area of a wheel is further stable, there may be the phenomenon of lagging in the values of grinding wheel performance characteristics, if the grinding rate is decreased at such a stable surface area. Such a lag is observed for the wheel wear, specific energy consumption, and effective grinding power, but not for the roughness parameters. It has been shown that the cutting surface of a wheel can be adjusted to the critical grinding rate when the cutting surface area attains a maximum for further operation with lower critical losses in the grinding rate to reliably ensure a decrease in the wheel wear and grinding energy consumption.