Fabricated shapes using a friction stir welding/forging process
- Smith C.B. ,
- Hinrichs J.F. ,
- Cerveny L.M. ,
- et al
- Smith C.B. ,
- Hinrichs J.F. ,
- Cerveny L.M. and
- Anderson R.
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An investigation is presented into the use of a friction stir welding/forging process to fabricate tee and I-beam shapes with integral radial shaped fillets, the optimisation of process parameters for different alloys and shapes, and the results of post weld mechanical testing. Trials using a filleted tee weld design were performed on 2024, 6061 and 7075 aluminium alloys. The flange thickness was 4 mm and the web thickness was 2 mm. The mechanical properties of welded joints were characterised by tensile, bend and fatigue testing. Process development trial results were obtained for radial shaped fillets in 6061-T6 and 7050-T7451 tees and I-beams. A design of experiments methodology involving rotation speed, travel speed and thrust force was used to assess the stability of the developed process for each joint configuration.
7th International Symposium, 20-22 May 2008, 3A: Process/Control 1, Paper 01
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