This XML file does not appear to have any style information associated with it. The document tree is shown below. Unveiling the Potential of Friction Stir Welding for Seamless Metal Joining Mengungkap Potensi Pengelasan Aduk Gesekan untuk Penyambungan Logam Tanpa Batas Rahmadan Dicky Fajar dickyfajar@umsida.ac.id Mulyadi mulyadi@umsida.ac.id Universitas Muhammadiyah Sidoarjo Indonesia Universitas Muhammadiyah Sidoarjo Indonesia 12 06 2024 Friction Stir Welding (FSW) has revolutionized metal joining in manufacturing by offering robust joints without defects. This study examines FSW using specific parameters and evaluates its impact on mechanical properties and microstructure. Through rotational speed (2192 RPM), welding speed (36.3 mm/minute), tool tilt (3.4°), and concave shoulder angle (9°), FSW was applied to predetermined metal materials. Impact and Vickers tests were conducted post-welding to assess toughness, surface hardness, and microstruc...