Effect of tool displacement on defect formation in friction stir welding of aluminium and copper
- Akinlabi E. ,
- Els-Botes A. and
- Lombard H.
- Akinlabi E. ,
- Els-Botes A. and
- Lombard H.
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Description
The effect of tool pin displacement on defect formation in friction stir welded (FSW) 5052 Al alloy and C11000 copper in butt joint configurations was investigated, with the tool pin plunged first in copper, secondly at the weld joint centre line and lastly in the aluminium. Dissimilar butt welds were produced using sheet of 3.175 mm thickness with the copper sheet placed at the advancing side and the aluminium sheet at the retreating side during welding. A tool of H13 steel was used and weld were produced at speeds of 1200 rpm and 150 mm per minute. All welds were examined optically for microstructure evaluation and microhardness measurements were conducted as well as tensile tests in order to evaluate the mechanical properties and fracture locations of the welded samples.
8th International Symposium, 18-20 May 2010, Session 3B: Titanium, Paper 04
Subjects
- Process equipment
- Process
- Friction stir welding tools
- Friction welding
- Welding
- Friction stir welding
- Aluminium and Al alloys
- Nonferrous
- Material
- 5xxx Al series
- Copper and Cu alloys
- Defects
- Weld zone
- Weld
- Thermomechanically affected zone
- Fracture
- Process conditions
- Strength
- Mechanical properties
- Properties
- Ultimate tensile strength
- Hardness
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