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The information about the effect of the plastic deformation mechanism on the
formation of the sub-microcrystalline structure of steels is reported. It is shown that the
development of the new technological schemes for metal forming with severe alternating
deformation is promising. A rolling method by two passes, which provides severe alternating
deformation with minor changes of the billet dimensions is proposed. The results of computer
simulation showed that with the use of new rolling method the uniformity of deformation along
the height and the value of the deformation degree in the plane of symmetry of the billet are
increased.
Keywords: severe plastic deformation; alternating deformation; forging; rolling; structure. |
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