Spot welding between aluminum alloy and carbon steel by friction stirring
- Fukumoto M. ,
- Miyagawa K. ,
- Yasui T. ,
- et al
- Fukumoto M. ,
- Miyagawa K. ,
- Yasui T. and
- Tsubaki M.
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Description
Friction stir spot welding (FSSW) experiments were conducted between AA 5052 aluminium alloy and an SP-270C low carbon steel under various process conditions (tool rotation speed 1000-5000 rpm, plunge depth 0.1-0.7 mm), and the microstructure and mechanical properties of the welded joints were investigated. Both the temperature at the weld interface and tool torque were measured during FSSW. Cross-sectional welded joint microstructure and fracture surfaces were observed by SEM. Mechanical properties were characterised by cross tensile and tensile shear tests as well as hardness profiles determined using a micro-Vickers hardness tester. Issues discussed include intermetallic reaction layer formation at the weld interface and the effect of surface treatment on weld strength.
6th International Symposium, 10-13 Oct 2006, Session 13A: FSW Al-Steel/Cu, Paper 01
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