Cutting force excursion in turning.

A new model of cutting force formation in turning is investigated. In this model, the cutting area is shaped as a result of displacements of the undeformed blade points projections at the cutting plane. Extreme kinematics cases of turning are compared. In a cylinder turning, the feed rate fluctuates perpendicular to the plane of rotation, and the cutting force excursion depends on the ratio of the rotation to vibration frequencies. Contrary to this, in a facing, the feed rate varies in the plane of rotation, and the cutting force is not modulated. The theoretical results accord well with experimental data. [ABSTRACT FROM AUTHOR]