Research on the deformation law for flat rolling of a core filled tube based on the slab method

Junlong Qi, Xianghua Liu, Haitao Gao and Xiangkun Sun

PLOS ONE, 2020, vol. 15, issue 8, 1-21

Abstract: 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.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0237039

DOI: 10.1371/journal.pone.0237039

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