Jweeg, Muhsin Jaber, Moneer Hameed Tolephih, and Muhammed Abdul-Sattar. 2014. “Influence of Tool Geometry on the Quality and Mechanical Properties of FSW Weldment for Al-Alloy (7020-T53)”. Al-Nahrain Journal for Engineering Sciences 17 (1): 36-49. https://nahje.com/index.php/main/article/view/207.