| In July of 2006, TWI (The Welding Institute) announced a new research about FSW that enables ultra-thin aluminum alloys sheet, called micro-friction stir welding (muFSW), which could achieve perfect and permanent spot-welded and lap-welded joints in less than 0.3mm material thickness and butt welds in a little more than 0.5mm thickness with welding speeds in the range of 100--500mm/min.;In this research, an experiment has been conducted to assess the effects of tool rotating speed, and welding feed rate on the friction stir welding process of 6061 aluminum alloys.;Two 3-D finite element models were also constructed and simulated using the Finite Element Method (FEM) program ABAQUS(TM), based on the real structure elements and composition of the materials used. The relationships between the process parameters and responses have been addressed based on the simulation results. The simulation results show that the relative best and the relative worst of welding parameters for both linear and spot welding. |
