Machinists can use the formula’s prediction of the level of cutting forces to proactively apply geometries and other factors and control loads on the cutting tool. The formula employs a materialbased constant kc11 that is the specific cutting force
(measured in N/mm2) needed to cut a chip area of 1 mm2 with a thickness of 1 mm in a specific material. In the formula,
Fc =kc11*b*h 1MC, the cutting force (Fc) is equal to the kc11 constant multiplied by “b” (the chip width/depth of cut), times
“h” (the chip thickness/feed) and a power factor exponent 1mc that takes into account the combination of geometry of the cutting tool and the workpiece material.