Friction stir spot welding (FSSW) of 6016 aluminum alloy was evaluated with conventional pin tool and new off-center feature tools. The off-center feature tool provides significant control over the joint area. The tool rotation rate was varied between 1000 and 2500 rpm. Maximum failure strength was observed in the tool rotation range of 1200-1500 rpm. The results are interpreted in the context of material flow in the joint and influence of thermal input on microstructural changes. The off-center feature tool concept opens up new possibilities for plunge-type friction stir spot welding.
Revised: February 13, 2009 |
Published: January 8, 2007
Citation
Mishra R.S., S. Webb, T.A. Freeney, Y.L. Chen, X. Gayden, G.J. Grant, and D.R. Herling. 2007.FRICTION STIR SPOT WELDING OF 6016 ALUMINUM ALLOY. In Friction Stir Welding and Processing IV, 341-348. Warrendale, Pa:TMS.PNNL-SA-52682.