FSW of thick section corner joints in aluminum alloys
- Colligan K. ,
- McTernan K. and
- Pickens J.R.
- Colligan K. ,
- McTernan K. and
- Pickens J.R.
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The design and construction of a prototype fixture and a corner fixture for making 90 degree corner joints in aluminium alloys by friction stir welding (FSW) are described. The requirements for a FSW weld fixture are outlined. The fixtures were tested with 25.4 mm (1 in) Al-Mg alloy 5083-H131 plate and 40.6 mm (1.6 in) Al-Cu-Li alloy 2195-T8P4 plate. Two joint designs were made: a butt corner design and a rabbet joint. The welding tool design allowed FSW with the tool axis normal to the surface of the workpiece. Micro-indentation hardness measurements were taken and the microstructure of the welded joints was examined. Full-penetration welds were made in 5083 alloy at 127 mm/min (5 in/min) travel speed. Small defects were observed near the crown of the weld in 2195 alloy.
3rd International Symposium, 27-28 Sep 2001, Poster Session, Paper 21
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