Abstract
A dynamic model of the cutting edge impact which involves a non-linear cutting stiffness is proposed in order to analyze the transient response of the cutting tool and to obtain the impact cutting force. The results of numerical analysis for the model proposed show a good agreement with the experimental results. Through the analysis, it isrevealed that the impact cutting force exerted to the tool face is mainly the force necessary to produce the chip, while the dynamic force due to the impact is almost negligible. The impact cutting force can be thus obtained approximately from the usual force record by a suitable elimination of the vibrating term, though it is also possible to be obtained from the analysis. The paper futher proposes a method to determine the distribution of the impact force upon the tool-face, and an example of the distribution is presented.
