The effects of semi-spherical pin on mechanical properties and microstructure of 7 mm thick friction stir welded dissimilar aluminum alloys AA7075 and AA5083 were investigated. Threee different pin profiles were used to weld three joints of dissimilar AA7075 and AA5083 Al alloys. Semi-spherical pin, cylindrical pin, and pin with round groove. The friction stir welding was performed at 700 rpm rotational speed and 25 mm/min welding speed. Defect-free FSW joint was obtained by using a simple tool with semi-spherical pin. Meanwhile, the crack-like defect is formed in the joints produced by the tools with cylindrical pin, and pin with round groove. The usage of FSW tool with semi-spherical pin (large frictional area of pin) produces a friction stir weld joint with higher tensile strength. When the tool with semi-spherical pin is applied, the grains size was smaller than that when using the other tools.
M.A. Elkhawildi, M., R. S. Essa, A., M.O. Helmy, A., & I. Elsoeudy, R. (2019). THE INFLUENCES OF SEMI-SPHERICAL PIN ON FRICTION STIR WELDING FOR DISSIMILAR MATERIAL. JES. Journal of Engineering Sciences, 47(No 2), 148-156. doi: 10.21608/jesaun.2019.115117
MLA
Mohamed M.A. Elkhawildi; Ahmed R. S. Essa; Abobker M.O. Helmy; Ramadan I. Elsoeudy. "THE INFLUENCES OF SEMI-SPHERICAL PIN ON FRICTION STIR WELDING FOR DISSIMILAR MATERIAL", JES. Journal of Engineering Sciences, 47, No 2, 2019, 148-156. doi: 10.21608/jesaun.2019.115117
HARVARD
M.A. Elkhawildi, M., R. S. Essa, A., M.O. Helmy, A., I. Elsoeudy, R. (2019). 'THE INFLUENCES OF SEMI-SPHERICAL PIN ON FRICTION STIR WELDING FOR DISSIMILAR MATERIAL', JES. Journal of Engineering Sciences, 47(No 2), pp. 148-156. doi: 10.21608/jesaun.2019.115117
VANCOUVER
M.A. Elkhawildi, M., R. S. Essa, A., M.O. Helmy, A., I. Elsoeudy, R. THE INFLUENCES OF SEMI-SPHERICAL PIN ON FRICTION STIR WELDING FOR DISSIMILAR MATERIAL. JES. Journal of Engineering Sciences, 2019; 47(No 2): 148-156. doi: 10.21608/jesaun.2019.115117
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