Optimization of TIG Welding Parameters for Enhanced Weld Strength Using MOORA Method


Shashang G, Raviram R, Ranjith Raj A, Shameer Mohamed S
Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, Tamil Nadu, India.


In the present work, application of multi-objective optimization based on ratio analysis (MOORA) method has been applied for solving multiple-criteria (objective) optimization problems in TIG welding for small and medium-sized businesses working with thin steel sheets. Using MOORA, this research examines key welding factors like voltage, current, gas flow, and filler rod usage. Through a systematic approach, including a specialized matrix and analysis techniques, the study identifies the best combination of these factors for optimal welding results. The recommended settings include V=20 V, I=100 A, G=5 litres per minute, and using a filler rod. Combining weight normalization and Shannon entropy strengthened the optimization process, allowing for a comprehensive analysis of the effects of different parameters. This approach ensures a thorough understanding of how changes in settings impact the welding outcome. The findings emphasize the importance of precise welding settings for high-quality sheet metal work and showcase the effectiveness of the optimization method used. By adopting these strategies in metal fabrication, metalworking businesses can improve their efficiency and competitiveness in the industry.