A Critical Review on Friction Stir Spot Welding of Aluminium Alloys: Tool, Mechanical, and Micro-Structural Characteristics. - Borah, Manash J.; Sarma, Kanta; Nirsanametla, Yadaiah; Haldar, Barun; Mondal, Arpan K.; Louhichi, Borhen; Joardar, Hillol (Crystals (2073-4352), 2025)