Determination of neutral section position in workpiece during rolling of slot profiles on shafts in cold state

The nature of the metal flow in the workpiece during the rolling of spline fillets on shafts in a cold state is investigated, and the causes of the formation of internal defects in the structure of the spline shaft and radial microcracks in the rolling tool are investigated. The angle of the position of the neutral section in the workpiece is determined, taking into account the geometric dimensions of the tool, the workpiece and the deformation conditions. Recommendations are given for the technology of rolling slotted profiles on shafts in a cold state, which make it possible to eliminate the formation of defects in the internal structure of the slotted shaft, increase the durability of the deforming tool and increase the accuracy of the slotted slots.