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Friction Stir Weld Lap Joint Properties in Aeronautic Aluminium Alloys

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Friction Stir Welding and Processing IX

Abstract

A study of properties of Friction Stir Weld lap joints performed with the AA7075-T6 aluminum alloy used in aerostructure manufacturing are presented in this work. The effects of different tool designs and welding parameters in the weld cross sectional and mechanical properties of the joints were investigated. The weld cross sectional features were analyzed by metallographic examination while the mechanical properties were studied by microhardness measurements. Typical features of Friction Stir Weld lap joints have been identified such as hook features, cold lap defects or joint line uplifting. The extension of Heat Affected Zone regions and mechanical property reduction was evaluated depending on the welding parameters used to perform the Friction Stir Weld joints. The tool design as well as welding conditions that minimize defects such as effective sheet thinning, hardness drops or wide Heat Affected Zone regions were established.

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References

  1. Booker MJ et al.(2000) Applying friction stir welding to the arianne 5 main motor thrust frame. In: 2nd international symposium on friction stir welding, Gothenburg, Sweden, 27–29 June 2000

    Google Scholar 

  2. Talwar R et al. (2000) Friction stir welding of airframe structures. In: 2nd international symposium on friction stir welding, Gothenburg, Sweden, 27–29 June 2000

    Google Scholar 

  3. Christner B (2002) Development and testing of friction stir welding (FSW) as a joining method for primary aircraft structure. In: 23rd ICAS congress, Toronto, Canada, 8–13 September 2002

    Google Scholar 

  4. Christner B (2016) A friction stir welded jet aircraft: from concept to reality. In: 11th international symposium on friction stir welding, Cambridge, UK, 17th May 2016

    Google Scholar 

  5. Fernandez F (2010) FSW applied on mid-size aircraft. In: 8th international symposium on friction stir welding, Timmendorfer Strand, Germany, 18–20th May 2010

    Google Scholar 

  6. Cederquist L, Reynolds AP (2001) Factors affecting the properties of friction stir welded aluminium lap joints. Weld J Res Suppl 80:281

    Google Scholar 

  7. Aldanondo E et al (2013) Mechanical and microstructural properties of lap joints. In: 142nd TMS annual meeting and exhibition—friction stir welding and processing VII, San Antonio, USA, March 2013, pp 195–205

    Google Scholar 

  8. Buffa G et al (2009) Friction stir welding of lap joints: Influence of process parameters on the metallurgical and mechanical properties. Mater Sci Eng A 519:19–26

    Article  Google Scholar 

  9. Dubourg L et al (2010) Process optimisation and mechanical properties of friction stir lap welds of 7075-T6 stringers on 2024-T3 skin. Mater Des 31:3324–3330

    Article  Google Scholar 

  10. Ji S et al (2016) Effect of reverse-threaded pin on mechanical properties of friction stir lap welded alclad 2024 aluminum alloy. J Mater Sci Technol 32:671–675

    Article  Google Scholar 

  11. Yang X et al (2014) Defect features and mechanical properties of friction stir lap welded dissimilar AA2024-AA7075 aluminum alloy sheets. Mater Des 55:9–18

    Article  Google Scholar 

  12. Liu H et al (2016) The effect of interface defect on mechanical properties and its formation mechanism in friction stir lap welded joints of aluminum alloys. J Mater Process Technol 238:244–254

    Article  Google Scholar 

  13. Aldanondo et al (2016) Microstructural features in friction stir welded lap joints. In: 10th international conference on trends in welding research, Tokyo, Japan, 10–14th October 2016

    Google Scholar 

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Correspondence to Egoitz Aldanondo .

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© 2017 The Minerals, Metals & Materials Society

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Aldanondo, E., Arruti, E., Echeverria, A. (2017). Friction Stir Weld Lap Joint Properties in Aeronautic Aluminium Alloys. In: Hovanski, Y., Mishra, R., Sato, Y., Upadhyay, P., Yan, D. (eds) Friction Stir Welding and Processing IX. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-52383-5_12

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