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Studies on Numerical Simulation of Temperature Distribution in Laser Beam Welding of 304L Austenitic Stainless Steel

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  • Pramod Kumar

    (Department of Mechanical Engineering, National Institute of Technology Patna, Patna, India)

  • Amar Nath Sinha

    (Department of Mechanical Engineering, National Institute of Technology Patna, Patna, India)

Abstract

A numerical simulation of temperature distribution in laser welding of 304L austenitic stainless steel have been investigated in the present research work. A three-dimensional Gaussian conical moving heat source has been implemented in the present numerical simulation using ANSYS software package. Temperature-dependent thermal physical properties of 304L austenitic stainless steel have been considered, which affects the temperature profile in the weldment. The effect of laser welding process parameters, namely, average beam power, welding speed, and laser spot diameter on weld bead geometry have been studied. The temperature distribution obtained from the numerical results at different positions away from the weld line were found to be in good agreement with the experimental results. The shape of the weld pool profile obtained through numerical simulation are in good agreement with the experimental results. Mechanical properties of the welded joint have also been studied. The ultimate tensile strength of the laser welded sample was equal to the base metal 304L austenitic stainless steel.

Suggested Citation

  • Pramod Kumar & Amar Nath Sinha, 2019. "Studies on Numerical Simulation of Temperature Distribution in Laser Beam Welding of 304L Austenitic Stainless Steel," International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), IGI Global, vol. 9(1), pages 30-49, January.
    • Handle: RePEc:igg:jmmme0:v:9:y:2019:i:1:p:30-49
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