Welding is a critical process in the fabrication of aluminum cylindrical shells, widely used in aerospace, automotive, and industrial applications. Understanding and managing residual stress in these structures is essential for ensuring their structural integrity and performance. This research delves into the complexities of gas tungsten arc welding (GTAW) and its impact on residual stress in aluminum cylindrical shells. By systematically analyzing key influencing factors, including welding parameters, material properties, and geometric considerations, this study aims to provide valuable insights for optimizing welding processes and mitigating residual stress-related issues in aluminum cylindrical shell fabrication.

Laser beam welding is a versatile and highly efficient joining process widely employed in various industries. Achieving optimal welding parameters is critical to ensure the quality and efficiency of the welds. This study presents a comprehensive investigation of laser beam welding process parameters using the Taguchi methodology for optimization. By systematically varying key parameters such as laser power, welding speed, focal length, and beam diameter, and employing robust experimental designs, this research aims to uncover the most influential factors and their interactions on weld quality. The findings offer valuable insights for fine-tuning laser beam welding processes, enhancing weld performance, and reducing defects.