Abstract
During the welding process, the aluminum alloy middle roof plate of an urban rail transit train will generate welding stress under restriction of the clamper as a result of heat deformation. Meanwhile, welding stress raises certain requirements on fixture technique, and the clamping force of the fixture can reduce the deformation of the workpiece. The support reaction generated at the position of the fixture during the welding process can easily cause fatigue failure of the fixture. In this article, the welding process of the middle roof plate is simulated by adopting thermal mechanical analysis to acquire the support reaction at the position of the fixture during the welding process. The pressing situation of the fixture is improved by the increase in the number of fixtures, and actual verification is performed through the welding process test.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Y. Zhang, Welding structure fatigue analysis, Chemical Industry Press, June (2013).
Y. Sun, Welding technique of 6082 aluminum alloy used for urban rail transit train/subway, Technique and New Technology, November (2010).
J. Kai, Welding parameters of 6005A aluminum alloy for new high-speed train, Journal of Northeastern University (2010).
J. Cheng, Research progress of welding heat source model, Welding Technology, March (2004).
J. Zhang, Welding deformation of thin wall cone structure of aluminum alloy, Welding Journal, January (2005).
H. Yue, Numerical simulation of welding stress deformation of thin wall aluminum alloy structure, Mechanical Engineering Journal, April (2005).
S. Zhang, Aluminum alloy laser-influence of two welding directions upon welding seam in MIG hybrid welding, Thermal Processing Technique, March (2015).
X. Zhu, Research of FSW techniques for aluminum alloys and the application to mass transit vehicles, Locomotive & Rolling Stock Technology, October (2011).
H. Mhand, Dynamic programming and hill-climbing techniques for constrained two-dimensional cutting stock problems, Kluwer Academic Publishers Dordrecht, March (2004).
W. Xin, ANSYS13.0 Thermodynamics finite element analysis, China Machine Press, January (2014).
Author information
Authors and Affiliations
Corresponding author
Additional information
Recommended by Associate Editor Young Whan Park
Yingshi Sun was a postgraduate of mechanical engineering, Dalian Jiaotong University, Dalian, China. He received his master’s degree in mechanical engineering from Dalian Jiaotong University. He is engaged as a mechanical engineering Associate Professor of Dalian Jiaotong University now.
Rights and permissions
About this article
Cite this article
Sun, Y., Xuan, L. & Du, Q. Finite element analysis of welding pressing force for aluminum alloy middle roof plate of urban rail transit train. J Mech Sci Technol 31, 1357–1363 (2017). https://doi.org/10.1007/s12206-017-0235-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12206-017-0235-9