Open AccessResearch on the deformation law for flat rolling of a core filled tube based on the slab method
Author(s) -
Junlong Qi,
Xianghua Li,
Haitao Gao,
Xiangkun Sun
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0237039
Subject(s) - slab , deformation (meteorology) , rotational symmetry , core (optical fiber) , tube (container) , materials science , mechanics , limiting , relative density , structural engineering , composite material , mechanical engineering , physics , engineering , sintering
The deformation law for axisymmetric deformation during the drawing of a core filled tube (CORFT) has been studied. However, the results of such studies could not be used in the flat rolling process of the CORFT, which is a plan deformation condition. In this paper, the inner core material and outer steel tube were successively analyzed based on the slab method during the flat rolling process (plan deformation) of the CORFT, and equations for wall thickness, core density, and roll force have been developed. The theoretical results solved by the developed equations were compared with the experimental results, revealing adequate accuracy for engineering requirements. The influences of rolling parameters on the roll force and the ultimate value of the relative density of the core material were studied, and the limiting condition for a larger roll force or higher value for relative density was obtained.