Guide roll simulation in FE analysis of ring rolling

Forouzan, Mohammad Reza; Salimi, M.; Gadala, Mohamed S.; Aljawi, A. A. N.

doi:10.1016/s0924-0136(03)00600-9

Cited by 30 publications

(15 citation statements)

References 20 publications

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“…Based on the finite element method, Kang and Kobayashi [20] and Joun et al [21] carried out the studies on preform design in ring rolling using the backward tracing scheme and an axisymmetric forging approach, respectively. Forouzan et al [22,23] proposed a new method (thermal spokes) to simulate the guide roll effect in FE analysis of the ring rolling process. Moon et al [24] predicted the polygonal-shaped defects during hot ring rolling using a rigid-viscoplastic finite element method.…”

Section: Introductionmentioning

confidence: 99%

Towards a steady forming condition for radial–axial ring rolling

Guo¹,

Yang²

2011

International Journal of Mechanical Sciences

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Section: Introductionmentioning

confidence: 99%

Towards a steady forming condition for radial–axial ring rolling

Guo¹,

Yang²

2011

International Journal of Mechanical Sciences

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“…However, further experiments [16,17] show that the contact pressure of the roll to the ring is larger in the entrance area than that in the exit area. So, considering the uneven distribution of the contact pressure, the gripping condition is modified in this paper.…”

Section: Gripping Condition Modificationmentioning

confidence: 94%

Feeding interval design considering multiconstraints in flat ring rolling process

Zhou

Jiang

et al. 2015

Int J Adv Manuf Technol

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This paper aims to develop a feeding strategy for flat ring rolling process in a systematic way. Firstly, an accurate prediction for ring diameter expansion is quite essential for ring rolling, so a new mathematical model for predicting the diameter expansion of the flat ring in radial-axial rolling process has been proposed, in which the variation of ring cross section and the particularity in initial rolling phase are taken into consideration. Based on the new model, the feeding constraint due to the ring outer diameter expansion can be obtained accurately. Secondly, the gripping and penetration conditions are included in the feeding schedule design. For the gripping condition, the uneven contact pressure distribution of the working rolls on the deformed ring is calculated according to the practical condition, which is different from the traditional assumption as uniform distribution and avoids oversimplification. The rolling force capability constraint is also included in the feeding interval design as the third factor considered. For a hot rolling process, the initial rolling temperature and finish rolling temperature have great influence on the ring performance, microstructure, and forming error formation. Therefore, the rolling temperature constraint is also being considered. The condition for forming error free such as fishtail free is considered as the fifth factor in the feeding interval design. Based on the feeding interval established, the quantitative design of a flat ring rolling process is realized both in simulation and in practical production, which proves the validity of the feeding interval design.

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“…5 and Table 1, F is the rolling force, which can be estimated according to Hua [7]. Then the thickness of ring h, can be used as the criterion 03005-p. 3 for the stiffness condition, by the bending theory and material strength. The feeding rate is key factor to determine the rolling force and the criterion of stiffness condition.…”

Section: Ring Stiffness and Examplesmentioning

confidence: 99%

“…Joun [1] applied an axisymmetric forging approach to optimize the preform design. Forouzan [2,3] proposed the thermal spokes method to simulate the guide roll in the finite element analysis of ring rolling, and to avoid the contact boundary condition. Davey [4,5] employed two meshes and ALE flow formulation to focus on deformation in the biting area and speed up the simulation.…”

Section: Introductionmentioning

confidence: 99%

The combined ring rolling process and the stiffness condition

Lan

Zhang

Hua

et al. 2015

MATEC Web of Conferences

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Abstract. Different from the conventional ring rolling mill, the combined ring rolling mill has not only one main roll and one mandrel to enlarge the ring blank, but also two assistant rolls to deform the ring blank with the main roll continuous feeding. The novel ring rolling process can have three working modes: 1) conventional ring rolling; 2) cross rolling with three rolls surrounding the ring blank; 3) conventional ring rolling with cross rolling. Moreover, the new ring rolling process allows the transferring from one working mode to another. The process and the mill provide more flexibility for manufacturing different ring products. The stiffness condition at different working modes and the smoothly transferring conditions are first studied carefully. Then the combined ring rolling model for deep groove ring is established and evaluated.

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Guide roll simulation in FE analysis of ring rolling

Cited by 30 publications

References 20 publications

Towards a steady forming condition for radial–axial ring rolling

Towards a steady forming condition for radial–axial ring rolling

Feeding interval design considering multiconstraints in flat ring rolling process

The combined ring rolling process and the stiffness condition

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