An Investigation of Mechanical Properties of Friction Stir Butt Welding Processes on AA6082 and AA5083 Alloy

Friction Stir Welding (FSW) is a solid state welding process. In particular, it can be used to join high-strength aerospace aluminum and other metallic alloys that are hard to weld by conventional fusion welding. It was performed on 6 mm thickness AA6082 and AA5083 Aluminum alloys. Aluminum alloy light weight, softer, tendency to bend easily, cost effective in terms of energy requirements so aluminum alloy has selected in this FSW technique. In this welding when two metals are joined with the help of heat generated by rubbing metals against each other. The friction stir welding is mostly used for joining aluminum alloys. The main defects occurring in this welding are holes, material flow rate. These defects are mainly caused due to improper selection of welding parameters.

In this project the mechanical properties of aluminum alloy AA6082 and AA5083 has tested with the help of tensile testing machine, hardness testing machine and non destructive type radiographic testing. In this experimental the testing of mechanical properties based on the input parameters such as rotational speed, tool speed and axial force with proper welding parameters. Finally, the experimental results will be compared and analyzed.