METHOD OF ROLLING CREATING PRESET TENSION IN CROSS SECTION OF WORK-PIECE AND WORK-PIECE FOR MAKING SAME

摘要

FIELD: metallurgy. ^ SUBSTANCE: method involves deformation of the workpieces within tolerance for this material temperature range. Creation of compressive stresses when rolling in the surface layers and tensile stresses - in the middle layers of the workpiece, having a better quality compared with the metal surface and the core and is therefore less sensitive to tensile stresses, which eliminates formation of surface flaws, is ensured by the fact that the rolling is carried out with higher temperatures of heating of the surface layers of the middle layers and the relative ratio of the regulated parameters of rolling, using a workpiece of a specified thickness. ^ EFFECT: method is designed to improve the quality of pig profiled or sheet workpieces and finished rolled profile. ^ 2 cl