Paper Titles

Laser Heat Treatment Effects on Roller Hemming in Aluminum Alloys
p.711

Superplastic Forming/Diffusion Bonding of a Titanium Alloy for the Realization of an Aircraft Structural Component in Multi-Sheets Configuration
p.717

Smart Components through Rotary Swaging
p.723

Study of Wavy Interface in Electromagnetic Welds
p.729

Process Mechanics in Friction Stir Welding of Magnesium Alloys: Experimental and Numerical Analysis
p.735

Investigation of Vibration Assisted Friction Stir Welding
p.741

Experimental and Numerical Analysis on FSWed Magnesium Alloy Thin Sheets Obtained Using “Pin” and “Pinless” Tool
p.747

Experimental Analysis of the Influence of Process Parameters on Residual Stress in AA2024-T3 Friction Stir Welds
p.753

Quality Analysis of Friction Stir Welded Butt Joints by Means of Experiments and Simulations
p.759

HomeKey Engineering MaterialsKey Engineering Materials Vols. 504-506Process Mechanics in Friction Stir Welding of...

Process Mechanics in Friction Stir Welding of Magnesium Alloys: Experimental and Numerical Analysis

Abstract:

Light weight construction is a major task within automotive and aircraft industry due to lower fuel consumption or increase the possible payload. Structural or exterior shell components are more and more manufactured out of aluminum alloys for this reason. A further weight reduction could be achieved by the substitution of aluminum alloys by magnesium alloys. Also the application of blanks with a varying thickness is a possibility to realize light weight design. To combine the advantages of weight reduction by the use of magnesium alloys and tailored welded blanks (TWBs), an effective joining technique is required. Friction Stir Welding can be used for difficult to be welded magnesium alloys to manufacture magnesium TWBs. During this process the different thickness of the two sheets can cause an unequal heat distribution below the tool, affecting material flow and therefore components strength. In the paper the main results of a numerical and experimental campaign on Friction Stir Welding of AZ31 magnesium alloy tailored blanks are presented. The numerical simulation was validated by experimental observations and the occurring bonding conditions have been analyzed in both approaches.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 504-506)

Pages:

735-740

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.504-506.735

Citation:

Cite this paper

Online since:

February 2012

Authors:

Gianluca Buffa, Livan Fratini, Tobias Gnibl, Michael Wieland, Marion Merklein

Keywords:

Friction Stir Welding (FSW), Material Flow, Numerical Simulation, Tailored Welded Blanks

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

Сopyright:

Citation:

References

[1] H.E. Friedrich, B.L. Mordike, Magnesium Technology - Metallurgy, Design Data, Applications, Springer, Berlin, 2006.

Google Scholar

[2] R.S. Mishra, Z.Y Ma, Friction stir welding and processing, Materials Science and Engineering R: Reports 50 (2005) 1-78.

DOI: 10.1016/j.mser.2005.07.001

Google Scholar

[3] L. Commin, M. Dumont, J.-E. Masse, L.Barrallier, Friction stir welding of AZ31 magnesium alloy rolled sheets: Influence of processing parameters, Acta Materalia 57 (2009) 326-334

DOI: 10.1016/j.actamat.2008.09.011

Google Scholar

[4] J. Shen, D. Min, D. Wang, Effects of heating process on the microstructures and tensile properties of friction stir spot welded AZ31 magnesium alloy plates, Materials and Design 32 (2011), 5033-5037.

DOI: 10.1016/j.matdes.2011.05.046

Google Scholar

[5] G. Buffa, J. Hua, R. Shivpuri, L. Fratini, A continuum based FEM model for friction stir welding - model development", Materials Science and Engineering: A 419/1-2 (2006) 381-388.

DOI: 10.1016/j.msea.2005.09.041

Google Scholar

[6] C. Bruni, G. Buffa, L. Fratini, M. Simoncini, Friction stir welding of magnesium alloys under different process parameters, Mater Sci Forum 638–642 (2010) 3954–3959.

DOI: 10.4028/www.scientific.net/msf.638-642.3954

Google Scholar