Evaluation of mechanical properties of friction stir welded commercially pure aluminium

Abstract

In this study, friction stir welding (FSW) of commercially pure aluminium is carried out. The main defects existing in this process are cavity, irregular material flow due to unsuitable selection of welding parameters. In this study, to reduce the defects by selecting suitable parameter and welding quality determined by mechanical testing methods and non-destructive testing methods. Welding is done with preheating the base metals and without preheating the base metals and their effects are analyzed with similar parameter. The parameters considered for this work are spindle rotational speed (rpm), tool travel speed (mm/min) and axial force (kN). The experimental results are evaluated by Destructive Test and Nondestructive test methods. The characterization study is performed by Optical microscope and Scanning Electron microscopy (SEM).

Experimental analysis and RSM-based optimization of friction stir welding joints made of the alloys AA6101 and C11000

“…The metal alloys (aluminium and copper) were chosen for such application, although welding They used radiography to detect the defects from the FSW joints. Suresh Kumar et al, [31], used pure aluminium (1100) of size 100 × 50 × 6 mm 3 with tool material high-chromium high-carbon steel. They found that from the radiographic testing there were no defects in the joints.…”