When turning slender shafts, what are the advantages of reverse feed over forward feed?

In general, slender objects are easy to bend under pressure and not easy to bend under tension. Forward feed (by)

When turning the tailstock (feeding to the spindle box), the axial split generated during cutting due to the workpiece being clamped in the chuckThe force points to the headstock to compress the workpiece, which is easy to bend the slender shaft. Reverse feed (from spindle box to tail) is adopted When turning, the axial component generated by cutting will pull the workpiece to the tailstock if the center isIf the jacking force is small or the elastic rotary center is adopted, the workpiece is in the tensile state, which is not easy to cause bending and reduce the deformation Deformation of slender shaft.