Abstract
In the previous paper (Part 1), a new factor, that is, the shear strain conductivity, which is the motive force of chip curl was discussed theoretically based upon some assumptions. Here in Part 2, the experimental results have been presented to explain or insure the fundamental ideas mentioned in Part 1. Thus the shear strain conductivity has been proved to be almost constant regardless of the cutting conditions, as long as the material cut is constant. Also it has been demonstrated that the radius of chip curl can be determined by toolchip contact length, depth of cut in orthogonal cutting, rake angle, shear angle and shear strain conductivity.
