Study on the friction stir welding technology and microstructure of 50% high silicon aluminium alloy
- Feng X.M. and
- Wang T.
- Feng X.M. and
- Wang T.
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Al, 50%Si alloys were joined by friction stir welding (FSW) on spray deposited sheets (thickness 1.5 mm) for butt welding and powder metallurgy plates (thickness 10 mm) for surface welding and the welded joint surface quality and microstructure were investigated. FSW was conducted using FSW-LM2-3012 equipment and the tool material was H13 hot worked tool steel. The process parameters varied were tool traverse speed (40-120 mm/min) and rotational speed (600-1800 rpm). Microstructure was observed by optical microscopy and a weld nugget zone and thermomechanically affected zone were found. Typical defects in the weldments, such as brittle breaks and cracks, are discussed.
12th International Symposium, 26-28 Jun 2018, Session 7A: Techniques II, Paper 03
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