Material flow and forces in dissimilar metal welding by friction stirring
- Yasui T. ,
- Kuwahara M. ,
- Tsubaki M. ,
- et al
- Yasui T. ,
- Kuwahara M. ,
- Tsubaki M. and
- Fukumoto M.
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The material flow in dissimilar material friction stir welding (FSW) between AA 6063 alloy (Al, 0.5%Mg, 0.43%Si) and S45C carbon steel (0.43%C, 0.25%Si, 0.77%Mn) was investigated by determining the 3D forces acting on the welded joint and the internal temperature during welding. FSW experiments were conducted at a rotational speed of 4000 rpm and welding speed of 200-1000 mm/min. Applied forces were measured by a dynamometer, internal temperature by a telemetry system and surface temperature by thermography. Material flow was visualised by an x-ray computerised tomography system. Down force, side force and transverse force were estimated for defect-free welding. The relationships between forces, internal temperature and process conditions are discussed.
7th International Symposium, 20-22 May 2008, 7B: Microstructure 2, Paper 04
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