Numerical Study on Forming Process by Continuous Resistance Heating

Abstract:

In the present study, an axis-symmetric electro-thermo-mechanical model has been developed to analyze a deformation process by continuous resistance heating. To obtain the transient temperature field prior to forming, a novel temperature-dependent model of the contact resistance was developed in the thermal-electrical analysis. The influences of the contact resistance, the current intensity and the die geometry on the temperature distribution were investigated. In the subsequent electro-thermo-mechanical analysis of the forming process by continuous resistance heating, the variations of the billet temperature distribution, forming force were obtained. The simulation results correspond well with experimental measured values. Furthermore, the influence of a current increasing during forming on the billet temperature and forming force was predicted in order to optimize the forming technology by continuous resistance heating.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 867-872
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.867
• Online since: October 2010
• Authors: Zheng Xing Men, Jie Zhou, Meng Han Wang, Chang Wei Shao
• Keywords: Contact Resistance, Electro-Thermo-Mechanical Simulation, Resistance Heating, Temperature Distribution

References

[1] Dalong Li , Enlin Yu: Computation method of metal's flow stress for electroplastic effect. Materials Science and Engineering A. 505 (2009) 62–64.

DOI: 10.1016/j.msea.2008.10.040

[2] H. Conrad, Di Yanga, P. Becher: Effect of an applied electric field on the flow stress of ultrafine-grained 2. 5Y-TZP at high temperatures. Materials Science and Engineering A. 477 (2008) 358–365.

DOI: 10.1016/j.msea.2007.05.057

[3] H. Conrad a, D. Yang: Effect of an electric field on the plastic deformation kinetics of electrodeposited Cu at low and intermediate temperatures. Acta Materialia. 50 (2002) 2851–2866.

DOI: 10.1016/s1359-6454(02)00109-x

[4] N. Biba, A. Lishnij, A. Vlasov: Simulation of coupled problem of electric upsetting. Journal of Materials Processing Technology, 80-81 (1998) 184-187.

DOI: 10.1016/s0924-0136(98)00139-3

[5] S. Maki, Y. Harada, K. Mori: Application of resistance sintering technique to fabrication of metal matrix composite. Journal of Materials Processing Technology, 119(1-3) (1998) 210-215.

DOI: 10.1016/s0924-0136(01)00962-1

[6] Seijiro Maki, Yasunori Harada, Ken-ichiro Mori, Hiroyasu Makino: Application of resistance heating technique to mushy state forming of aluminium alloy. Journal of Materials Processing Technology, 125-126 (2002) 477-482.

DOI: 10.1016/s0924-0136(02)00324-2

[7] P. Rogeon, P. Carre, J. Costa, G. Saindrenan .: Characterization of electrical contact conditions in spot welding assembilies. Journal of Materials Processing Technology 195 (2008) 117-124.

DOI: 10.1016/j.jmatprotec.2007.04.127

[8] E. Feulvarch, V. Robin, J. M. Bergheau: Resistance spot welding simulation: a general finite element formulation of electrothermal contact conditions. Journal of Materials Processing Technology. 153-154 (2004) 436-441.

DOI: 10.1016/j.jmatprotec.2004.04.096

[9] Zhigang Hou, Ill-Soo Kim, Yuanxun Wang, Chunzhi Li, Chuanyao Chen: Finite element analysis for the mechanical features of resistance spot welding process. Journal of Materials Processing Technology. 185 (2007) 160-165.

DOI: 10.1016/j.jmatprotec.2006.03.143

[10] I. Ranjbar Nodeh, S. Serajzadeh, A. H. Kokabi: Simulation of welding residual stresses in resistance spot welding, FE modeling and X-ray verification. Journal of Materials Processing Technology. 205 (2008) 60-69.

DOI: 10.1016/j.jmatprotec.2007.11.104

[11] P. Rogeon, P. Carre, J. Costa, G. Saindrenan .: Characterization of electrical contact conditions in spot welding assembilies. Journal of Materials Processing Technology 195 (2008) 117-124.

DOI: 10.1016/j.jmatprotec.2007.04.127