Kumar J, P., A. Raj, R. K, and I. S. Rout. “Design and Optimization of Friction Stir Welding of Al-Cu BUTT Joint Configuration Using Taguchi Method”. Journal of Mines, Metals and Fuels, vol. 70, no. 8A, Dec. 2022, pp. 471-9, doi:10.18311/jmmf/2022/32029.