Izuchenie dopolnitel'noy vozmozhnosti vozdeystviya uprugoplasticheskoy znakoperemennoy deformatsii na svoystva metallicheskikh materialov pri ikh obrabotke na rolikopravil'noy mashine

Abstract

The only way to increase the impact of elastic-plastic alternating bending on the properties and structure of metal materials is to go beyond the minimum input gap set by the nomogram from the operation manual of the EcoMaster®25 precision roller straightening machine. Analysis of the position of the working rollers when they are in contact and after the setting of a gap between them showed that within the limits of reducing the input gap by 30% from the boundary set by the nomogram, the possibilities of implementing the alteration process remain. Analytical dependences are constructed to determine the input gap for any values of the thickness of strips or sheets in the range from 1 to 3 mm, in which the distribution of the total equivalent intensity of the principal true strains is especially effective. The additivity of this magnitude of the deformation effect on metallic materials (along with the intensity of the principal true strains) is proved, which allows to consider it as a measure of the accumulated strain.