FVM Simulation of the Effect of Preventing Ring Structure on Continuous Extrusion Process

Abstract:

Continuous extrusion is an advanced process for manufacturing copper bus-bar while preventing ring is an important factor affecting forming. Due to the severe plastic deformation, FE simulation of continuous extrusion extending deforming is inaccurate and inefficient because of frequent remesh. Based on finite volume method (FVM) which can avoid re-mesh effectively, this paper simulates continuous extrusion forming, and analyzes the effect of different preventing ring structure on metal flowing velocity. The results show that: preventing ring with the curve transitional surface is beneficial to metal uniform flowing than that with the plane transitional surface; As radius of preventing ring increases, the metal flow rate of the sides is faster than the middle part; As opening width of preventing ring increases, the dead metal zones become smaller in the middle area.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 767-771
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.767
• Online since: August 2011
• Authors: Li Chen, Bao Yun Song, Xiao Dong Luan
• Keywords: Continuous Extrusion, Finite Volume Method (FVM), Preventing Ring, Relative Velocity Difference

References

[1] D. Green: J. Inst. Met. Vol. 100(1972), pp.296-300

[2] C. Etherington: Wire Ind. Vol. 44 (1977), pp.85-89

[3] J.R. Cho, H.S. Jeong: Journal of Materials Processing Technology. Vol.104 (2000), pp.236-243

[4] J.R. Cho, H.S. Jeong: Journal of Materials Processing Technology. Vol.110 (2001), pp.53-60

[5] Wu Xianghong, Zhao Guoqun, Luan Yiguo, Ma Xinwu: Materials Science and Engineering A. Vol. 435 (2006), pp.266-274

DOI: 10.1016/j.msea.2006.06.114

[6] T.Katajarinne, T. Manninen, P.Ramsay: Journal of Material Processing Technology Vol. 177 (2006), pp.604-607