Division of Materials Forming, Department of Production Engineering
Royal Institute of Technology, 100 44 Stockholm, Sweden, email@example.com
FREE ABSTRACT (to read the full article, please log in below).
In this paper, Hill's criterion with the updated parameters and an
elastic work roll model are proposed. The influence of anisotropy and work-roll's
elastic flattening on shear strain in the surface layer has been studied
by means of finite element method. Low-carbon steel (Docol), provided by
SSAB, was utilised and tested in upsetting, plane strain compression and
laboratory one-pass rolling mill. The results reveal that anisotropy can
have a significant effect on both the shear strain in the surface layer
and location of the neutral point that will cause an error in estimation
of friction coefficient. Regarding elastic work roll, the influence of
elastic flattening on shear strain is relatively weaker than that of anisotropy.
The results also show that shear strain can be reduced and its value can
be an indicator to evaluate the degree of optimisation of rolling process.
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