Spot friction welding for sheet aluminum joining
- Pan T.Y. ,
- Joaquin A. ,
- Wilkosz D.E. ,
- et al
- Pan T.Y. ,
- Joaquin A. ,
- Wilkosz D.E. ,
- Reatherford L. ,
- Nicholson J.M. ,
- Feng Z.L. and
- Santella M.L.
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Description
The principles of spot friction welding (SFW) and the differences between SFW and linear friction stir welding (FSW) are outlined. Displacement control and load control of SFW machines are described. Experiments were conducted using a displacement-controlled SFW machine and aluminium alloy 6111-T4 sheet of 0.94 mm in thickness in a lap joint configuration. A SFW tool made of H13 tool steel was used at a constant rotational speed of 2,000 rpm. Tool pin plunge depths were 1.6-1.9 mm. The effects of tool insertion depth on lap shear strength and microstructure were examined. Lap shear strength was maximum with a insertion depth of 1.8 mm. The production of decorative spot joints using a decorative anvil was studied.
5th International Symposium, 14-16 Sep 2004, Session 11A: Friction Stir Spot Welding and Modelling, Paper 03
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