Roll pass evaluation for hot shape rolling processes

Ping Xin, Tatsuhiko Aizawa, Junji Kihara

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Since the complex shaped caliber rolling usually takes place in hot operation, three dimensional mechanical behavior coupled with the heat transfer in and around the billet must be taken into account for accurate evaluation of the roll pass system. In the present study, the authors propose a new simulation approach to deal with the above coupling problem: the deformation mode method for the three dimenional deformation in the steady-state rolling process, and the two dimensional boundary element method for radiation and convection heat transfer between mill stands. Furthermore, to deal with temperature history in plastic working, heat generation by plastic deformation and friction work and heat transfer between rolls and billet are both taken into account in every incremental reduction. As an example, the butterfly roll pass system is taken in the actual angle steel rolling. It is found that (1) the mechanical behavior and characteristics can be discussed by the calculated metal flow, strain and temperature distributions in the whole roll pass system, and (2) the numerically estimated cross-sectional shapes after rolling are in fairly good agreement with the experimental measurements in the actual processing. The above example demonstrates the validity and effectiveness of the present modelling even for the industrial shape rolling process.

Original languageEnglish
Pages (from-to)163-178
Number of pages16
JournalJournal of Materials Processing Tech.
Volume27
Issue number1-3
DOIs
Publication statusPublished - 1991
Externally publishedYes

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Heat transfer
Heat convection
Steel
Heat generation
Heat radiation
Boundary element method
Plastic deformation
Temperature distribution
Metals
Friction
Plastics
Processing
Temperature

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Roll pass evaluation for hot shape rolling processes. / Xin, Ping; Aizawa, Tatsuhiko; Kihara, Junji.

In: Journal of Materials Processing Tech., Vol. 27, No. 1-3, 1991, p. 163-178.

Research output: Contribution to journalArticle

Xin, Ping ; Aizawa, Tatsuhiko ; Kihara, Junji. / Roll pass evaluation for hot shape rolling processes. In: Journal of Materials Processing Tech. 1991 ; Vol. 27, No. 1-3. pp. 163-178.
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