FSW research activity at OSU and UNIPA

Friction stir assembly of alluminium alloy

Material flow and CDRX phenomena determining joint resistance in AA7075-T6 friction stir welding

Improving Friction Stir Welding of blanks characterized by different thickness

Friction stir welding (FSW) appears to be a promising process even in the welding of blanks of different thicknesses. Actually, such particular tailor welded blanks (TWBs) are usually characterized by a reduction in ductility due to the utilized fusion welding process. In this paper the authors, starting from a preliminary feasibility study, investigate the possibility to improve the mechanical performances of friction stir welded blanks of aluminum alloy with different thicknesses. Both experiments and a FE analyses are developed for a few case studies with different thickness ratios between the blanks. The numerical investigations are performed with the aim to highlight the material tempe…

Modeling the effect of pin geometry in friction stir welding of aluminum alloys