Analysis of the Main Factors Affecting the Surface Morphology of FSJ Joint

Abstract:

An attempt is made here to analyze the effect of the process parameter and shoulder of tool on the surface topography of FSJ (friction stir joining) joint. It is found that, it is a linear relationship between the feed speed and arc lines spacing, and the slope decreases as feed speed increasing. As the rotational speed increasing, the arc line spacing reduces. While FSJ processes completed at different parameters contain the same ratio between the feed speed and the rotation speed, the arc line spacing of the joint surfaces is the same. The shoulder of tool can increase the width of joint lines, refine arc lines structure, reduce the flash in the retreating side, but increase the flash in the advancing side.

• Periodical: Advanced Materials Research (Volume 1027)
• Pages: 183-186
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1027.183
• Online since: October 2014
• Authors: Yong Fang Deng, Dun Wen Zuo*, Bo Song
• Keywords: Arc Lines, Factor Analysis (FA), FSJ, Surface Morphology

References

[1] Thomas W M, Nicholas E D. Friction stir welding for the transportation industries [J]. Materials & Design, 1997, 18(4-6): 269-273.

DOI: 10.1016/s0261-3069(97)00062-9

[2] Nandan R, DebRoy T, Bhadeshia H K D H. Recent advances in friction-stir welding – Process, weldment structure and properties [J]. Progress in Materials Science, 2008, 53(6): 980–1023.

DOI: 10.1016/j.pmatsci.2008.05.001

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

[4] Wang Dayong, Feng Jicai. Process model of arc corrugation on friction stir weld [J]. Transactions of the China Welding Institution, 2004, 25(4): 46-50.

[5] Cui G R, Ma Z Y, Li S X. Periodical plastic flow pattern in friction stir processed Al–Mg alloy [J]. Scripta Materialia, 2008, 58(12): 1082-1085.

DOI: 10.1016/j.scriptamat.2008.02.003

[6] Chen Z W, Cui S. On the forming mechanism of banded structures in aluminium alloy friction stir welds [J]. Scripta Materialia, 2008, 58(5): 417-420.

DOI: 10.1016/j.scriptamat.2007.10.026

[7] Yan J H, Sutton M A, Reynolds A P. Processing and banding in AA2524 and AA2024 friction stir welding [J]. Science and Technology of Welding and Joining, 2007, 12 (5): 390-401.

DOI: 10.1179/174329307x213639

[8] Kang Ju, Luan Guohong, Fu Ruidong. Microstructures and Mechanical Properties of Banded Textures of Friction Stir Welded 7075-T6 Aluminum Alloy [J]. Acta Metallurgica Sinica, 2012, 47(2): 224-230.

[9] Jin H, Saimoto S, Ball M, et al. Characterisation of microstructure and texture in friction stir welded joints of 5754 and 5182 aluminium alloy sheets [J]. Materials Science and Technology, 2001, 17(12): 1605-1614.

DOI: 10.1179/026708301101509674

[10] Schneider J A, Nunes A C. Characterization of Plastic Flow and Resulting Microtextures in a Friction Stir Weld [J]. Metallurgical and Materials Transactions, 2004, 35B (8): 777-783.

DOI: 10.1007/s11663-004-0018-4

[11] Deng Yongfang, Zuo Dunwen, Song Bo. Friction stir welding eccentric extrusion flow model [J]. Transactions of the China Welding Institution, 2013, 34(12): 41-45.

[12] X. F Li, D. W Zuo. C. H Xing, S. H Jiang, Y. L Sun, H. F Wan, B Song, S. B Zhang and Y.F. Deng. China Patent. CN102779279A. (2012).