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Parameter Design in Fusion Welding of AA 6061 Aluminium Alloy using Desirability Grey Relational Analysis (DGRA) Method

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Abstract

In the present work, yield strength, ultimate strength and micro-hardness of the lap joints formed with Al 6061 alloy sheets by using the processes of Tungsten Inert Gas (TIG) welding and Metal Inert Gas (MIG) welding were studied for various combinations of the welding parameters. The parameters taken for study include welding current, voltage, welding speed and inert gas flow rate. Taguchi’s L9 orthogonal array was used to conduct the experiments and an integrated technique of desirability grey relational analysis was disclosed for optimizing the welding parameters. The ignored robustness in desirability approach is compensated by the grey relational approach to predict the optimal setting of input parameters for the TIG and MIG welding processes which were validated through the confirmation experiments.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Saveetha Engineering College, Chennai, 602105, India

    R. Adalarasan & M. Santhanakumar

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  1. R. Adalarasan
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  2. M. Santhanakumar
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Correspondence to R. Adalarasan.

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Adalarasan, R., Santhanakumar, M. Parameter Design in Fusion Welding of AA 6061 Aluminium Alloy using Desirability Grey Relational Analysis (DGRA) Method. J. Inst. Eng. India Ser. C 96, 57–63 (2015). https://doi.org/10.1007/s40032-014-0128-y

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  • DOI: https://doi.org/10.1007/s40032-014-0128-y

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