Effect of pin geometry on the joint strength of friction stir spot welded aluminium alloys
- Badarinarayan H. ,
- Yang Q. ,
- Hunt F. ,
- et al
- Badarinarayan H. ,
- Yang Q. ,
- Hunt F. and
- Okamoto K.
Repository
Description
Friction stir spot welding experiments were conducted in a cross-tension configuration on automotive grade A 6002-T4 sheets (thickness 1 mm) and the effect of pin and shoulder geometry on welded joint static strength was investigated. The welding parameters employed were tool rotational speed of 2500 rpm, plunge and retract speed of 20 mm/min and dwell time of 2 s. The pin geometries studied were cylindrical, star, square, rectangular, lambda, paddle, delta and triangular, and concave and convex shoulder geometries were compared for cylindrical pins. Mechanical properties of spot welds were characterised by cross-tension testing in an Instron screw-driven machine. Weld macrostructure was examined. The effect of hook geometry on static strength is discussed.
7th International Symposium, 20-22 May 2008, 11A: Spot 3 (Al), Paper 02
Related Records
