Effect of material flow by double-sided friction stir welding on weld structure and mechanical properties of magnesium alloy
- Chen J. ,
- Fujii H. ,
- Sun Y.F. ,
- et al
- Chen J. ,
- Fujii H. ,
- Sun Y.F. ,
- Morisada Y. and
- Kondoh K.
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Simultaneous double-sided friction stir welding (DFSW) experiments were undertaken on AMX 602 alloys (Mg, 6%Al, 0.5%Mn, 2%Ca) and the influence of diverse material flows caused by differing process parameters (rotation direction and travel speed) and heat input on joint microstructure and mechanical properties was investigated. The DFSW procedure incorporated a pair of tools applied to opposite sides of the sheet, an upper tool with a concave shoulder and a lower tool with a flat shoulder. Welding was conducted at a rotational speed of 600 rpm and a travel speed of 300-500 mm/min. Microstructure was observed by optical microscopy and TEM. Mechanical properties were characterised by microhardness measurements and tensile tests.
9th International Symposium, 15-17 May 2012, Session 7A: Variants II, Paper 02
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