Influences of Geometric Factors on Rolling Force and Moment in Hot Ring Rolling of Large Parts

Abstract:

For hot ring rolling of large parts, rolling force and moment are of significance for designing, choosing and optimizing of rolling die and mill. In the study, the average shape parameter of the deformation zone of ring rolling is presented first, and then a reliable coupled thermo-mechanical three-dimensional (3D) finite element (FE) model for the process is developed. Finally, the influences of geometric factors on rolling force and moment during hot ring rolling of titanium alloy large parts are explored. The main results show that increasing the ratio of driver roll radius to idle roll radius or decreasing the average radius of blank is beneficial to a saving of rolling force and moment, while the axial height of blank has a little influence.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 563-566
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.563
• Online since: January 2012
• Authors: Min Wang
• Keywords: Hot Ring Rolling, Large Ring, Moment, Numerical Simulation, Rolling Force, Titanium Alloy

References

[1] H. Yang, Z. C. Sun, M. Zhan, L. G. Guo, Y. L. Liu, H. W. Li, H. Li, and Y. J. Wu, Advances in Control of Unequal Deformation by Locally Loading and Theories Related to Precision Plastic Forming, Journal of Plasticity Engineering, Vol. 15, 2008, pp.6-13.

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

[3] D. Y. Yang and J. S. Ryoo, An Investigation into the Relationship between Torque and Load in Ring Rolling, J. Eng. Ind., Vol. 109, 1987, pp.190-196.

DOI: 10.1115/1.3187117

[4] L. Hua, X. G. Hang and C. D. Zhu, Theory and Technology of Ring Rolling, Mechanical Industry Press, Beijing, (2001).

[5] J. L. Song, A. L. Dowsona and M. H. Jacobsa, Coupled Thermo-mechanical Finite-element Modeling of Hot Ring Rolling Process, J. Mater. Process. Tech., Vol. 121, 2002, pp.332-340.

DOI: 10.1016/s0924-0136(01)01179-7

[6] M. R. Forouzan, M. Salimi and M. S. Gadala, Three-dimensional FE Analysis of Ring Rolling by Employing Thermal Spokes Method, International Journal of Mechanical Sciences, Vol. 45, 2003, p.1975-(1998).

DOI: 10.1016/j.ijmecsci.2004.02.004

[7] L.G. Guo and H. Yang, Numerical Analysis of Force and Power Parameters in Cold Ring Rolling, Materials Science Forum, Vol. 561-565, 2007, pp.805-808.

DOI: 10.4028/www.scientific.net/msf.561-565.805

[8] H. Yang. M. Wang, L. G. Guo and Z. C. Sun, 3D Coupled Thermo-mechanical FE Modeling of Blank Size Effects on the Uniformity of Strain and Temperature Distributions during Hot Rolling of Titanium Alloy Large Ring., Computational Materials Science, Vol. 44, 2008, pp.611-621.

DOI: 10.1016/j.commatsci.2008.04.026

[9] M. Wang, H. Yang, Z. C. Sun and L. G. Guo, Dynamic Explicit FE Modeling of Hot Ring Rolling Process, Transactions of Nonferrous Metals Society of China, Vol. 16, 2006, pp.1274-1280.

DOI: 10.1016/s1003-6326(07)60006-5