High speed friction stir welding process modeling
- Crawford R. ,
- Bloodworth T. ,
- Cook G.E. ,
- et al
- Crawford R. ,
- Bloodworth T. ,
- Cook G.E. ,
- Strauss A.M. and
- Hartman D.A.
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Description
Two 3D numerical simulation models were employed to investigate the relationship between forces and torques during high-speed friction stir welding (FSW) with respect to mechanistic defect development owing to process parameter variations, and the theoretical results were compared with experimental data for partial penetration FSW of AA 6061-T6 plates (thickness 6.4 mm). The finite element models were formulated to take account of both smooth and threaded tool pins, using a viscoplastic fluid flow model to relate plastic deformation to stress and strain rate tensors, and were implemented using the computational fluid dynamics code "FLUENT". Results were analysed for tool rotation speeds in the range 1000-5000 rpm and travel speeds of 290-1600 mm/min.
6th International Symposium, 10-13 Oct 2006, Session 12A: Fundamentals, Paper 02
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