Determining the Cutting Force Coefficients of FC25 grey iron when machining by a flat-end milling on CNC milling machine

Abstract

In this paper, a linear force model was developed in which the cutter’s
helix angle was incorporated to calculate the cutting force coefficients of
the milling process. Affected by the cutter’s helix angle, all derivations
of cutting forces are directly based on the tangential, radial, and axial
cutting force components. In the developed mathematical model, with
the stable milling condition, the average cutting forces are expressed as a
linear function of the federate. Thus the cutting force coefficient is
formulated by a function of average cutting force and cutter geometry
parameters such as cutter diameter, number of flutes, cutter’s helix angle.
Thiscalculation model of cutting force coefficient can be applied to each
pair of cutter and workpiece. The developed cutting force calculation
model has been successfully verified by both simulation and experiment.