OPTIMIZATION OF FRICTION STIR SPOT WELDING PARAMETERS OF DISSIMILAR WELDED JOINTS OF ALUMINUM ALLOY (AA2024T3) WITH PURE COPPER SHEETS
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 2015, Vol 4, Issue 12
Abstract
Friction stir spot welding (FSSW) was performed for welding of an aluminum alloy AA2024T3 sheet to commercial pure copper sheet of 2mm thick. Friction stir spot welding are carried out at different tool rotational speeds( 800,1000 &1250 ) rpm ,plunging times (30 ,60 &90) sec and tool pin profile or geometry ( Threaded cylindrical with flute, Tapered cylindrical and straight cylindrical). Process parameters were optimized by using Taguchi technique and depending on design of experiment (DOE). The aluminum alloy sheet was overlapped on the copper sheet . It was found that maximum shear force was (1527 N) obtained at optimum welding parameters : 1250 rpm rotation speed ,90 sec plunging time and straight cylindrical pin profile which are obtained from the analysis of response optimizer. Pareto chart the standardiz
Authors and Affiliations
Dr. Muna K. Abbass
Keywords
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