Research into Alterations in Variations in the Pipe Wall Thickness in the Course of Rolling in the Cold Pilger Rolling Mill
The article contains the study of the effect of various technological factors of pipe pilger rolling on the size of transversal nonuniform pipe wall thickness. A lot of kinds of relevant literature have been studied. The received results were organized in two main concepts: 1) the spreading angle size effect on the pipe accuracy; 2) the influence of the increased rigidity of e stand on the pipe accuracy. The research shows that both the decrease of roll-pass speading angle under preserving of all other cross section parameters and increase of stand rigidity result in reducing the transversal wall thickness of finished pipes. The research results can have a positive effect both on cold-rolling mill technological process structure and the development of pilger rolling equipment.