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Friction Stir Spot Welding of Aluminum and Magnesium Alloy Sheets
Technical Paper
2005-01-1255
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper demonstrates the application of a displacement controlled friction stir spot welding machine in joining 1.5 mm sheets of Al 5754 aluminum and AM60 base materials. Higher fracture loads during overlap shear testing were produced when the projected bonded area immediately adjacent to the keyhole periphery and the energy input during FSW spot welding increased. Partial pull-out of the stir zone occurred in high energy input FSW spot welds with fracture initiating from unbonded regions located on either side of the welded joint.
FSW welding tools contaminated with magnesium had a markedly detrimental effect on the mechanical properties of Al 5754 spot welds. Mg-contamination decreased the energy input and the dimensions of the projected bonded area, and produced regions immediately adjacent to the keyhole periphery in Al 5754 spot welds, which contained brittle intermingled lamellae.
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Authors
Citation
Su, P., Gerlich, A., and North, T., "Friction Stir Spot Welding of Aluminum and Magnesium Alloy Sheets," SAE Technical Paper 2005-01-1255, 2005, https://doi.org/10.4271/2005-01-1255.Also In
References
- Zhou, Y. Fukumoto, S. Peng, J. Ji, C.T. Brown, L. 2004 “Experimental Simulation of Surface Pitting of Degraded Electrodes in Resistance Spot Welding of Aluminum Alloys” Journal of Materials Science and Technology
- Nakata, K. Inoki, S. Nagano, Y. Hashimoto, T. Johogan, S. Ushio, M. Oct. 2001 “Friction Stir Welding of AZ91 Thixomolded Sheet” Journal of Japan Institute of Light Metals 51 10 528 533
- Avedesian, M. 1999 “Magnesium and Magnesium Alloys” Materials Park, OH ASM International 106 118
- Lathabai, S. Barton, K.J. Harris, D. Lloyd, P.G. Viano, D.M. McLean A. 2003 “Welding and Weldability of AZ31B by Gas Tungsten Arc and Laser Beam Welding Processes” Magnesium Technology 2003 Kaplan H.I.
- Stern, A. Munitz, A. Kohn, G. 2003 “Application of welding technologies for joining of Mg Alloys: Microstructure and Mechanical Properties” Magnesium Technology 2003 Kaplan H.I.
- Lin, P.-C. Lin, S.-H. Pan, J. Pan, T. Nicholson, J.M. Garman, M.A. 2004 “Microstructures and Failure Mechanisms of Spot Friction Welds in Lap-shear Specimens of Aluminum 6111-T4 Sheets” SAE technical Series, 2004-01-1330
- Gerlich, A. Su, P. North, T.H. 2005 “Friction Stir Spot Welding of Mg-alloys for Automotive Applications” Magnesium Technology 2005 Neelameggham, N.R. Kaplan, H.I. Powell, B.R.