What are the practical implications of a thrust force that c

What are the practical implications of a thrust force that could be positive or negative depending on the cutting conditions?

Solution

Thrust force : this force is in direction of feed motion in orthogonal cutting. The thrust force is used to calculate the power of feed motion. In three-dimensional oblique cutting, one more force component appears along the third axis. The thrust force is further resolved into two more components, one in the direction of feed motion called feed force , and the other perpendicular to it and to the cutting force called back force , which is in the direction of the cutting tool axis.