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Numerical and Experimental Investigations on Deposition of Stainless Steel in Wire Arc Additive Manufacturing

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  • Ashish Kumar

    (National Institute of Technology, Patna, India)

  • Kuntal Maji

    (National Institute of Technology, Patna, India)

Abstract

This paper presents numerical and experimental investigations on wire arc additive manufacturing for deposition of 430L ferritic stainless steel. Finite element analysis was used to predict temperature distribution for deposition of multiple layers in wire arc additive manufacturing. The transient temperature distribution and predicted by finite element simulation was in good agreement with the experimental results. A wall type structure was fabricated by deposition of multiple layers vertically, and deposited material was characterized by tensile testing and microstructure study. The microstructure of the deposited wall structure was investigated through optical microscopy and scanning electron microscopy (SEM) with EDS. The microstructure of deposited material was changed from fine cellular grains structure to columnar dendrites structure with the formation of secondary arm. It was found that the YS, UTS, and EL of the deposition direction were better than the build direction. The mechanical properties of the WAAM manufactured material was found comparable to that of the wire metal.

Suggested Citation

  • Ashish Kumar & Kuntal Maji, 2021. "Numerical and Experimental Investigations on Deposition of Stainless Steel in Wire Arc Additive Manufacturing," International Journal of Manufacturing, Materials, and Mechanical Engineering (IJMMME), IGI Global, vol. 11(4), pages 40-56, October.
    • Handle: RePEc:igg:jmmme0:v:11:y:2021:i:4:p:40-56
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