TMAC: Tool Monitoring Adaptive Control

Slope Monitoring

During constant surface speed cuts the spindle RPM can change based on the cutting diameter. When the speed changes, the horsepower also changes and can mask the effect the tool has on horsepower. This is where slope monitoring takes over. Instead of a level horsepower limit, the limits are applied at the slope of the horsepower increase or decrease. So, on a cut such as a facing operation on a lathe, as the spindle RPM increases and the corresponding horsepower increases the effect of the cutting tool can be extracted.