Proceedings of the International Conference on Advancements in Materials, Design and Manufacturing for Sustainable Development, ICAMDMS 2024, 23-24 February 2024, Coimbatore, Tamil Nadu, India

Research Article

Process Parameter Optimization of Ultrasonic Assisted TIG Welding of Al 7075 and Al 6061Alloy Joints

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  • @INPROCEEDINGS{10.4108/eai.23-2-2024.2347030,
        author={Gokul Raju  R and Lakshmanan  A and Jayakrishnan  Nampoothiri},
        title={Process Parameter Optimization of Ultrasonic Assisted TIG Welding of Al 7075 and Al 6061Alloy Joints},
        proceedings={Proceedings of the International Conference on Advancements in Materials, Design and Manufacturing for Sustainable Development, ICAMDMS 2024, 23-24 February 2024, Coimbatore, Tamil Nadu, India},
        publisher={EAI},
        proceedings_a={ICAMDMS},
        year={2024},
        month={6},
        keywords={tungsten inert gas welding ultrasonic vibration technique response surface method hot crack length},
        doi={10.4108/eai.23-2-2024.2347030}
    }
    
  • Gokul Raju R
    Lakshmanan A
    Jayakrishnan Nampoothiri
    Year: 2024
    Process Parameter Optimization of Ultrasonic Assisted TIG Welding of Al 7075 and Al 6061Alloy Joints
    ICAMDMS
    EAI
    DOI: 10.4108/eai.23-2-2024.2347030
Gokul Raju R1, Lakshmanan A1, Jayakrishnan Nampoothiri1,*
  • 1: PSG College of Technology
*Contact email: jkn.prod@psgtech.ac.in

Abstract

The hot crack behavior (HCL) in the welding of Al 7075 alloy to Al 6061 alloy is examined by investigating the relationship between welding current and Ultrasonic Vibration Technique (UVT) input power. Through the utilization of Response Surface Methodology (RSM) and a Central Composite Design (CCD), the interactions between these parameters are explored. The significance of the developed model is demonstrated through ANOVA analysis, with UVT identified as the most influential parameter affecting the welding performance. By employing three-dimensional surface plots, an optimal parameter combination of 90 A welding current and 1.25 kW UVT input power was estimated, resulting in an anticipated HCL of -0.897 mm. Subsequent experimental validation under these conditions confirms the absence of cracks, thereby affirming the efficacy of the developed regression model and the successful application of RSM for optimizing process parameters.