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Dual-Rotation Speed Friction Stir Welding: Experimentation and Modeling

H. Montazeolghaem, M. Badrossamay, A. Fadaei Tehrani, S. Ziaei-Rad and M. Shamanian

Materials and Manufacturing Processes, Volume 30, Issue 9, September 2014, Pages 1109-1114



Implementing differential rotation speeds of pin and shoulder in the friction stir welding process is considered. Experimental investigations were carried out using a newly designed and fabricated apparatus for dual-rotation speed friction stir welding. Metallographic studies demonstrated that appropriate selection of separate pin and the shoulder rotation speeds not only results in defect-free joints, but also affects the weld zone by controlling the heat input delivered. An energy model for predicting maximum temperature was extended to the dual-rotation speed friction stir process. The model was verified using the previous experimental results reported in the literature.



 A. Aluminum; B. Dual; C. Friction; D. Model; D. Pin; E. Rotation; F. Shoulder; G.Speed; I. Stir; J. Thermal; K. Welding


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