Study of Flow Balance and Temperature Evolution over Multiple Aluminum Extrusion Press Cycles with HyperXtrude 9.0

Article Preview

Abstract:

In this research, transient finite element simulations of the aluminum extrusion process have been performed in order to study how process parameters influence flow balance and exit temperature. This has been achieved by investigating the influence of billet taper, front billet temperature and ram speed on the run-out velocity and temperature of two separate outlets. Analysis of variance (ANOVA) has been employed to study the effect of each parameter on the velocity and temperature variation of the extruded section. Results show that increasing each of these three parameters results in an undesired increase in exit velocity and temperature. The front billet temperature is found to be the most significant factor affecting the variation. The finite elements software used was Altair HyperXtrude 9.0.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

257-264

Citation:

Online since:

December 2009

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] X. Duan, X. Velay, T. Sheppard: Application of finite element method in the hot extrusion of aluminium alloys, Materials Science and Engineering A, Volume 369, Issues 1-2, 25 March 2004, pp.66-75.

DOI: 10.1016/j.msea.2003.10.275

Google Scholar

[2] X. Velay, X. Duan and T. Sheppard., Mater. Sci. Forum 426-432 (2003), p.3807.

Google Scholar

[3] J. Zhou, L. Li and J. Duszczyk., J. Mater. Process. Tech. 134 (2003), p.383.

Google Scholar

[4] Q. Li, C.J. Smith, C. Harris and M.R. Jolly. J. Mater. Process. Tech. 135 (2003), p.189.

Google Scholar

[5] T. Sheppard, X. Duan, in: Z. Jin (Ed. ), Hot Deformation of Aluminum Alloys III, Times of Acadiana Pr, Inc., 2003, p.289.

Google Scholar

[6] J. Lof and Y. Blokhuis. J. Mater. Process. Tech. 122 (2002), p.344.

Google Scholar

[7] K. Marthinsen, B. Holmedal, S. Abtahi, S. Chen and E. Nes. Mater. Sci. Forum 426-432 (2003), p.3777.

DOI: 10.4028/www.scientific.net/msf.426-432.3777

Google Scholar

[8] R.J. Dashwood, H.B. McShane, A. Jackson, in: Proceedings of the 6th International Seminar on Aluminum Extrusion Technology, vol. I, Chicago, IL, USA, May 1996, Aluminum Extruders Council, 1996, pp.331-339.

Google Scholar

[9] L. Li, J. Zhou and J. Duszczyk. Modell. Simul. Mater. Sci. Eng. 11 (2003), p.401.

Google Scholar

[10] B.P.P.A. Gouveia, J.M.C. Rodrigues, N. Bay, P.A.F. Martins, Finite-element modelling of cold forward extrusion, Journal of Materials Processing Technology, Volume 94, Issues 2-3, 29 September 1999, Pages 85-93.

DOI: 10.1016/s0924-0136(99)00084-9

Google Scholar

[11] B.P.P.A. Gouveia, J.M.C. Rodrigues, N. Bay, P.A.F. Martins, Deformation analysis of the round-to-square extrusion: a numerical and experimental investigation, Finite Elements in Analysis and Design, Volume 35, Issue 3, 1 June 2000, Pages 269-282.

DOI: 10.1016/s0168-874x(99)00070-0

Google Scholar

[12] B.P.P.A. Gouveia, J.M.C. Rodrigues, N. Bay, P.A.F. Martins, Physical modelling and numerical simulation of the round-to-square forward extrusion, Journal of Materials Processing Technology, Volume 112, Issues 2-3, 25 May 2001, Pages 244-251.

DOI: 10.1016/s0924-0136(01)00725-7

Google Scholar

[13] HyperXtrude 9. 0, Altair Engineering, Inc., Troy, MI 48083-(2031).

Google Scholar

[14] http: /diemtech. ing. unibo. it/extrusion07.

Google Scholar

[15] C.M. Sellars, and W.J. Tegart, 1972. Hot workability. Int. Met. Rev. 17, 1-24.

Google Scholar

[16] M. P. Clode, 1992. Material flow and microstructure development during extrusion of AA6063. In: Proceedings of the Fifth International Aluminium Extrusion Technology Seminar, Aluminium Association and Aluminium Extruder's Council, Wauconda, Illinois, pp.79-99.

Google Scholar

[17] G. Fang, et al., FEM simulation of aluminium extrusion through two-hole multi-step pocket dies, J. Mater. Process. Tech. (2008), doi: 10. 1016/j. jmatprotec. 2008. 04. 036.

DOI: 10.1016/j.jmatprotec.2008.04.036

Google Scholar

[18] D. C. Montgomery, Design and Analysis of Experiments, 7th Ed., 2009, ISBN: 978-0-47039882-1.

Google Scholar