Flow pattern and mechanical properties of dissimilar friction stir welds joining 6061-T6 to 2014-T6 aluminium alloys
- Jonckheere C. ,
- de Meester B. and
- Simar A.
- Jonckheere C. ,
- de Meester B. and
- Simar A.
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Description
Similar and dissimilar friction stir welds (FSW) were performed between 2014-T6 and 6061-T6 aluminium alloy sheet (4.70 mm thickness). Weld speed of 450 and 90 mm per minute were used to produce welds described as cold and hot welds respectively. Additional dissimilar welds were performed at speed of 300 mm per minute. All welds were conducted under displacement control. The hardest alloy was successively placed on the retreating side and on the advancing side. The effect of tool shift transverse to the welding direction and towards the 2014 also was investigated for dissimilar welds. After welding tensile samples were prepared for measurement of tensile properties and transverse sections of the welds were prepared for examination of the material flow patterns. The effect of welding conditions and material on the flow patterns are discussed and the influence of flow pattern on the tensile and fracture properties are examined.
8th International Symposium, 18-20 May 2010, Session 6A: Aluminium Properties, Paper 0
Subjects
- Friction welding
- Welding
- Process
- Friction stir welding
- Aluminium and Al alloys
- Nonferrous
- Material
- 2xxx Al series
- 6xxx Al series
- Dissimilar materials
- Process conditions
- Weld zone
- Weld
- Dynamically recrystallised zone
- Thermomechanically affected zone
- Microstructure
- Strength
- Mechanical properties
- Properties
- Ultimate tensile strength
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