An Analytical Approach to Ring Rolling Using Modified Slab Analysis


Article Preview

In this paper, based on the modified slab method theory, an analytical solution for ring rolling process is presented. The non-uniformity of the normal and shear stresses across the section of the deforming material are considered. The friction factor multiplied by the shear yield strength is used to present friction between the main roll and the ring. Complete expressions for the ring rolling pressure, force and torque are obtained and the position of neutral point is predicted. The influence of the process parameters such as friction factor, main roll rotational speed, feed speed, and others was investigated. Analytical results obtained from the present formulation were compared to previous experimental works and good agreement and improvements were observed.



Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan






A. Parvizi et al., "An Analytical Approach to Ring Rolling Using Modified Slab Analysis", Advanced Materials Research, Vols. 383-390, pp. 4634-4641, 2012

Online since:

November 2011




[1] S. Casotto, F. Pascon, A. M. Habraken, S. Bruschi, Thermo-mechanical-metallurgical model to predict geometrical distortions of rings during cooling phase after ring rolling operations, Int. J. Mach. Tools & Manuf.; Vol. 45, 2005, p.657–664.

DOI: 10.1016/j.ijmachtools.2004.10.007

[2] J. M. Allwood, R. Kopp, D. Michels, O. Music, M. Oztop, T. F. Stanistreet, A. E. Tekkaya, I. Tiedemman, The technical and commercial potential of an incremental ring rolling process, J. Manuf. Technol., Vol. 54, 2005, pp.233-236.

DOI: 10.1016/s0007-8506(07)60091-2

[3] W. Johnson, G. Needham, Experiments on ring rolling, Int. J. Mech. Sci., Vol. 10, 1968, pp.95-113.

[4] V. Ranatunga, J. S. Gunasekera, UBET-based numerical modeling of bulk deformation processes, J. of Mater. Eng. and Perform., Vol. 15, 2007, pp.47-52.

DOI: 10.1361/105994906x83538

[5] A. G. Mamalis, W. Johnson, J. B. Howkyard, Pressure distribution, roll force and torque in cold ring rolling, J. Mech. Eng. Sci., Vol. 18(4), 1976, pp.196-209.

DOI: 10.1243/jmes_jour_1976_018_033_02

[6] W. Johnson, Ring rolling: the inclusion of pressure roll speed for estimating torque by using a velocity superposition method, in: Proc. of the 24th Int. MTDR Conf., Manchester, 1983, pp.19-24.

[7] M. R. Forouzan, M. Salimi, M. S. Gadala, Three-dimensional FE analysis of ring rolling by employing thermal spokes method, Int. J. Mech. Sci. Vol. 45, 2003, p.1975-(1998).

DOI: 10.1016/j.ijmecsci.2004.02.004

[8] L. Dewasurendra, A finite element method for ring rolling process, Ph. D Thesis, Ohio Univ., (1998).

[9] G. Y. Tzou, Relationship between frictional coefficient and friction factor in asymmetrical sheet rolling, J. Mater. Process. Technol., Vol. 86, 1999, pp.271-277.

DOI: 10.1016/s0924-0136(98)00327-6

[10] M. Salimi, F. Sassani, Modified slab analysis of asymmetrical plate rolling, Int. J. Mech. Sci., Vol. 44, 2002, p.1999-(2023).

DOI: 10.1016/s0020-7403(02)00043-7

[11] M. Salimi, M. Kadkhodaei, Slab analysis of asymmetrical sheet rolling, J. Mater. Process. Technol., Vol. 150, 2004, pp.215-222.

[12] J. S. Ryoo, D. Y. Yang, The influence of process parameters on torque and load in ring rolling, J. Mech. Work. Technol., Vol. 12, 1986, pp.307-321.

In order to see related information, you need to Login.