Metal Flow Behaviour in Tee Joint Valve Body Multidirectional Extrusion

Abstract:

By multi-axis active load deformation method, the equivalence diameter tee joint was formed on multi-axis numerical control hydraulic press machine. The loading route was determined by numerical simulation. The experiment results showed that two loading method can complete form the parts. The different directions metal flow was observed under multi-axis loading conditions. To simplify analysis, the flow field was divided into several regions. In every region, the metal flow direction was only one. In multi-axis loading, the way of deformation follows priority deformation principle: The metal flows only choose one direction even if the work piece were under the complicated coupling field condition. The mathematical model of the deformation force and metal flow rate was established. The theoretical calculation had been provided.

• Periodical: Materials Science Forum (Volumes 747-748)
• Pages: 431-436
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.747-748.431
• Online since: February 2013
• Authors: Mei Cheng, Zhi Min Zhang
• Keywords: Deformation Area, Deformation Resistance, Flow Rate, Multidirectional Deformation, Tee Joint

References

[1] E. Doege, B. A. Behrens, Reduce process chains due to the precision forging of gears-effect on the conventional forging technology. Journal of Materials Processing Technology, 71(1997)14-17.

DOI: 10.1016/s0924-0136(97)00114-3

[2] A. Gontarz, Forming Process of valve drop forging with three cavities, Journal of Materials Processing Technology, 4(2006)228-232.

DOI: 10.1016/j.jmatprotec.2006.04.053

[3] Fuh-Kuo Chen, Shao-Jun Wang and Ray-Hau Lin. A, study of forming pressure in the tube-hydroforming process. Journal of Materials Processing Technology. 1(2007): 404-409.

DOI: 10.1016/j.jmatprotec.2007.04.094

[4] Kashani Zadeh, Mosavi Mashhadi, Finite element simulation and experiment in tube hydroforming of unequal T shape, J. of Mater. Proc. Tech. 177(2006, )684-687.

DOI: 10.1016/j.jmatprotec.2006.04.056

[5] Kashani Zadeh, Mosavi Mashhadi, Analysis of tube hydroforming parameters with FEM for several cross-section, Tehran International Congress on Manufacturing Engineering (TICME2005), (2005).

[6] YANG Hong-liang, KANG Da-chang, ZHANG Zhi-liang, Simulative Experimental Investigation on Shear Extrusion Process of Tubular Component with Branches, Die and Mould Technology, 3 (2001)9-12.

[7] A. Gontarz, Forming process of valve drop forging with three cavities, Journal of Materials Processing Technology 177(2006)228-232.

DOI: 10.1016/j.jmatprotec.2006.04.053

[8] Xia J, Wang Y. A, Study a die set for the multiway die forging of pipe joints, Int J. Mach. Tools Manuf, 1(1991)23-30.

DOI: 10.1016/0890-6955(91)90048-8

[9] Sun Hongyi, Kang Dachang, Chen Yu, Simulative research on new process to form large size valve bodies, Forging &Stamping Technology 2(2001)6-9.

[10] YANG Hong liang, KANG Da chang, ZHANG Zhi liang Study on the processing technology of DN100mm stop valve body, Valve, 1(2001)13-14.