EFFECT OF TOOL SHOULDER DIAMETERS ON TENSILE STRENGTH OF FRICTION STIR WELDED AA1100 ALUMINUM ALLOY JOINTS
Keywords:
Aluminum Alloy, Welding, MicrostructureAbstract
Recently, friction stir welding of AA 1100 aluminium alloys has received great attention in industry. This is due to its widespread application in marine cooking utensils, various architectural components, food and chemical handling and storage equipments, and welded assemblies. Friction stir welding process is an emerging solid state joining process in which the material that is being welded does not melt and recast. The friction-stir-welding (FSW) process and tool parameters play a major role in deciding the joint characteristics. Therefore, mechanical properties should be controlled to obtain good welded joints. This paper reports the effect of friction stir welding (FSW) tool shoulder diameters on the tensile strength of AA 1100 aluminium alloy joints. Five joints were fabricated using with the different combinations of tool shoulder diameter. The joint fabricated using shoulder diameter of 15mm exhibited higher tensile strength compared to other joints.
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