Thermal stresses in work rolls during the rolling of metal strip

Chang, Der-Form

doi:10.1016/s0924-0136(98)00449-x

Cited by 54 publications

(26 citation statements)

References 6 publications

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“…These calculations do not explicitly show, however, any characteristic properties of the analytic solution such as the dependence of T max on Pe, q and δ. With respect to numerical solutions it is referred to the papers by Sun and coworkers [19,21], reporting also a rather comprehensive list of material and process data, the studies by Chang [27,28] and the paper by Narita et al [29], dealing not only with a single but also with several hundreds of overrollings. One of the advantages of the numerical solution technique is that the temperature field in the rolling slab can be calculated, too, see e.g.…”

Section: The Reference Solutionmentioning

confidence: 99%

The temperature and stress fields developing in rolls during hot rolling

Fischer

Schreiner

Werner

et al. 2004

Journal of Materials Processing Technology

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Section: The Reference Solutionmentioning

confidence: 99%

The temperature and stress fields developing in rolls during hot rolling

Fischer

Schreiner

Werner

et al. 2004

Journal of Materials Processing Technology

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“…[11][12][13][14][15][16] Galantucci and Tricarico 13 examined the strip and work-roll temperature variations during warm rolling process and found that a 350°C temperature rise may occur in the rolling mills, significantly influencing the stress field and life of the work-roll. Developed thermal stresses in the workrolls as a result of temperature rise in hot rolling have also been investigated by Chang 14 and Fischer et al 15 In a similar work, Sun et al 16 studied the thermomechanical loading of rolling mills during hot strip rolling, using a steady-state FE model. It was concluded that the utilized modeling approach could provide a proper and relatively accurate means for the purpose of work-roll life estimation during hot rolling of steels.…”

Section: Introductionmentioning

confidence: 99%

Finite element modeling of thermal and mechanical stresses in work-rolls of warm strip rolling process

Koohbor

2015

Proceedings of the Institution of Mechanical Engineers, Part B:

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An integrated mathematical model was developed to study the thermo-mechanical behavior of strips and work-rolls during warm rolling process of steels. A two-dimensional finite element analysis was first employed to solve for the thermomechanical response of the rolled strip under steady-state conditions. The calculated roll pressure and temperature fields were then used to apply proper boundary conditions for solving the governing thermo-mechanical problem for the work-roll. The obtained results indicate that in warm strip rolling of steels, the thermal and mechanical stresses developed within the work-roll are comparable; however, the more significant influence is due to heating and cooling of the work-roll during the process, particularly in case of warm rolling operations of the strips with higher initial temperature. Besides, the utilized model was shown to be capable of determining the effects of various rolling parameters on the thermo-mechanical behavior of strips and work-rolls during warm rolling process.

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“…During cold rolling process, large contact compressive stress and intensive friction act on the roll surface and cracks initiate on its surface. So, it is essential for the roll with high and uniform hardness, sufficient hardening depth, good wear resistance, and cracking resistance ( Ref 1,2). With the development of more variety, higher strength, and thinner standard cold rolling products, it is significant to develop a new cold work roll to meet the requirement for production and rolling mill with higher quality and performance.…”

Section: Introductionmentioning

confidence: 99%

Parameter Optimization During Forging Process of a Novel High-Speed-Steel Cold Work Roll

Guo

Liu

Sun

et al. 2015

J. of Materi Eng and Perform

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The forging of high-speed-steel (HSS) roll has always been a technical problem in manufacturing industry. In this study, the forging process of a novel HSS cold work roll was simulated by deform-3D on the basis of rigid-viscoplastic finite element model. The effect of heating temperature and forging speed on temperature and stress fields during forging process was simulated too. The results show that during forging process, the temperature of the contact region with anvils increases. The stress of the forging region increases and distributes un-uniformly, while that of the non-forging region is almost zero. With increasing forging time, Z load on anvil increases gradually. With increasing heating temperature or decreasing forging speed, the temperature of the whole billet increases, while the stress and Z load on anvil decrease. In order to ensure the high efficiency and safety of the forging process, the heating temperature and the forging speed are chosen as 1160°C and 16.667 mm/s, respectively.

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Thermal stresses in work rolls during the rolling of metal strip

Cited by 54 publications

References 6 publications

The temperature and stress fields developing in rolls during hot rolling

The temperature and stress fields developing in rolls during hot rolling

Finite element modeling of thermal and mechanical stresses in work-rolls of warm strip rolling process

Parameter Optimization During Forging Process of a Novel High-Speed-Steel Cold Work Roll

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