Theory and practice of asymmetrical longitudinal rolling (Part 2)

This paper analyses the deforming aspects of the metallic materials in the asymmetric longitudinal rolling process, often encountered in the industrial practice when the process is asymmetrical, firstly because of the inequalities between the cylinders’ work diameters, which complicated the entire picture of the tension state in the deforming area. To include all the asymmetric rolling processes from the industrial practice, the author creates and achieves a unique equipment that allows the simultaneous research of the force parameters, needed for the technological calculus. From these parameters, in the practical situations the attention is aimed in this paper at the distribution of the rolling moments on the work cylinders, based on the measuring of the deformations at the universal coupling bars. The irregular allocation of the moments, leads to overcharge and to the breaking of the bars, especially in the case of asymmetric longitudinal rolling.