A STUDY ON INSTANTANEOUS CUTTING FORCE COEFFICIENTS IN FACE MILLING

In this paper, the characteristics of instantaneous cutting force coef ficients-in face milling are studied. In order to estimate instantaneo us cutting force coefficients in face milling, the relationships betwe en instantaneous cutting force coefficients and measured cutting force signals are derived. A series of experiments are then conducted to st udy the natures of instantaneous cutting force coefficients. The relat ionships between instantaneous cutting force coefficients and other cu tting parameters are also established. It is found that the normal for ce coefficient is mainly affected by chip thickness and cutting speed; the vertical force coefficient is mainly affected by chip thickness, cutting edge length and cutting speed; and that the horizontal force c oefficient is not only affected by chip thickness, cutting speed and l ength of cut, but also the variation rate of chip thickness. (C) 1997 Elsevier Science Ltd.