Investigation on friction stir welding process for C919 passenger aircraft fuselage panel
- Meng Q. ,
- Luan G.H. and
- Dong C.L.
- Meng Q. ,
- Luan G.H. and
- Dong C.L.
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Friction stir welding experiments were undertaken on Al-Li alloys for application to C919 passenger aircraft fuselage panels, and the microstructure and mechanical properties of the welded lap joints were investigated. The materials comprised 2060-T8 rolled plate (Al, 0.72%Li, 3.56%Cu, 0.3%Mn, 0.72%Mg, 0.34%Zn) and 2099-T83 extrusion stringer (Al, 1.8%Li, 2.34%Cu, 0.29%Mn, 0.26%Mg, 0.62%Zn) (thickness 2 mm). Welding was conducted at rotational speeds of 600-1400 rpm and welding speeds of 80-400 mm/min. Microstructure and fatigue fracture morphology were observed by optical microscopy, TEM and SEM. Mechanical properties were characterised by tensile, shear and fatigue tests. The fatigue lives of friction stir welded and riveted panels were compared.
10th International Symposium, 20-22 May 2014, Session 3A: Applications, Paper 03
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