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@article{180615,
        author = {Thamizhini R},
        title = {Optimization and characterization of Friction stir welding of AA6061/AA8011 dissimilar joints},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {1},
        pages = {2342-2347},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=180615},
        abstract = {Friction stir welding tool geometry plays a critical role in material flow and governs the transverse rate at which FSW can be conducted. The tool serves three primary functions, i.e., (a) heating of the work piece, (b) movement of material to produce the joint, and (c) containment of the hot metal beneath the tool shoulder. This experimental study on dissimilar aluminum alloys AA 8011 and AA6061 friction stir welded with tapper cylindrical tool pin by using FSW process. Taguchi L9 orthogonal array was used to optimize the welded joints. Here maximum tensile strength 122 N/mm2 and minimum hardness was 44.6 HRB was achieved. Due to higher speed, minimum feed rate and maximum axial force necessitated the maximum tensile strength. Microstructural analysis showed significant grain refinement in the weld zone due to dynamic recrystallization. Subsequently, SEM analysis revealed dimple-like fracture indicating ductile failure. Finally, using Taguchi design, the best control factor and ANOVA was identified for the tensile and hardness parameters. When the speed is high and the axial force is low, the weld bead appears to have a fine texture and defect-free.},
        keywords = {Friction stir welding, dissimilar joints, tensile strength, optimization.},
        month = {June},
        }