An Upper Bound Analysis of the Ring Rolling Process

Abstract:

Article Preview

A generalized upper bound solution for the deformation of ring in the ring rolling process has been formulated. An admissible velocity field and strain rates are derived from the parametric definition of streamlines in the deformation zone. This new formulation was used to predict the upper bound on power. Minimizing the upper bound power with respect to neutral point position, the neutral point position and the rolling force were determined. Using the theory presented here, the variation of internal, shear, frictional and total powers with respect to ring revolution are discussed. Some of the results obtained from analysis were compared with experimental results.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

2819-2826

DOI:

10.4028/www.scientific.net/AMR.383-390.2819

Citation:

A. Parvizi and K. Abrinia, "An Upper Bound Analysis of the Ring Rolling Process", Advanced Materials Research, Vols. 383-390, pp. 2819-2826, 2012

Online since:

November 2011

Export:

Price:

$35.00

[1] 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

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

[3] 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

[4] 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

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

[6] 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

[7] E. Doege, M. Aboutour, Simulation of ring rolling processes , Proc. 2nd Conf. on Technology of Plasticity, Vol. 2, 1987, p.817–824.

DOI: 10.1007/978-3-662-11046-1_19

[8] D. Y. Yang, J. S. Ryoo, J. C. Choi, W. Johnson, Analysis of roll torque in profile ring rolling of L-sections,. In: Proc. of the 21st Int. MTDR Conf. London, 1980, pp.69-74.

[9] J. S. Ryoo, D. Y. Yang, W. Johnson, Ring rolling; the inclusion of pressure roll speed for estimating torque by using a velocity superposition method, Proc. of 24th Int. MTDR conf., 1983, Manchester, pp.19-24.

DOI: 10.1007/978-1-349-81247-9_3

[10] 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.

[11] B. Avitzer, Metal forming; process and analysis, New York: McGraw-Hill, (1968).

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