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Prediction and Optimization of Pulsed Current Gas Tungsten Arc Welding Process Parameters to Obtain Sound Weld Pool Geometry in Titanium Alloy Using Lexicographic Method

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In this article the weld pool geometry of pulsed current gas tungsten arc (GTA)-welded titanium alloy was analyzed. Increase in use of pulsed current process creates dependancy on the use of mathematical equations to predict the weld pool geometry. Hence, the development of mathematical models using four factors, five levels, central composite design was attempted. The developed models were checked for their adequacy. Lexicographic method was used for optimizing the process parameters of pulsed current GTA welding technique. Optimizing the process parameters has resulted in bringing out strong weld pool geometry, which was later confirmed by conducting confirmation tests.

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Acknowledgments

The authors would like to express sincere thanks to the Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar, Tamil Nadu for extending the facilities of Metal Joining Laboratory and Material Testing Laboratory to carryout this investigation. The authors are grateful to Mr. K. Anbazhagan, Chennai for making necessary arrangements to procure the base metal for investigation. The authors wish to thank Mr. S. Babu, DRDO Project Associate, Annamalai University for rendering helping hand to carryout the statistical analysis.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Maamallan Institute of Technology, Anna University, Sriperumpudur, Tamil Nadu, 602 105, India

    M. Balasubramanian

  2. Department of Manufacturing Engineering, Anna University, Guindy, Chennai, 600 025, India

    V. Jayabalan

  3. Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar, Chidambaram, 608 002, India

    V. Balasubramanian

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  1. M. Balasubramanian
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  2. V. Jayabalan
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  3. V. Balasubramanian
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Correspondence to M. Balasubramanian.

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Balasubramanian, M., Jayabalan, V. & Balasubramanian, V. Prediction and Optimization of Pulsed Current Gas Tungsten Arc Welding Process Parameters to Obtain Sound Weld Pool Geometry in Titanium Alloy Using Lexicographic Method. J. of Materi Eng and Perform 18, 871–877 (2009). https://doi.org/10.1007/s11665-008-9305-6

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  • DOI: https://doi.org/10.1007/s11665-008-9305-6

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