Kadhim, Mohammed, and Suhair Hussein. “The Effect of Bobbin Friction Stir Used Different Tool Design on the Mechanical Properties to Weld 6061-T6 Aluminum Alloy”. Association of Arab Universities Journal of Engineering Sciences 30, no. 3 (September 30, 2023): 18-25. Accessed July 22, 2024. https://jaaru.org/index.php/auisseng/article/view/640.