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Numerical Modeling The Effects Of Additive Manufacturing Parameters, Heat Treatment And Orientation On Residual Stress And Distortion Of Metal Powder In718 Pump Impeller Fabrication

Author

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  • Alireza M. Haghighi

    (Shahid Bahonar University of Kerman, Iran)

Abstract

Selective laser melting (SLM) technology based on IN718 powder bed by means of finite element method (FEM) has been concerned with effects of additive manufacturing (AM) parameters, heat treatment and part orientation on residual stress and distortion of IN718 pump impeller. It is found that fabrication in horizontal position has the least and vertical position has the most residual stress and distortion between considered conditions. Also, increasing the speed of the process is very efficient and reduce the residual stress and distortion of the process up to 65% and heat treatment is beneficial in reducing the distortion in most of the conditions.

Suggested Citation

  • Alireza M. Haghighi, 2021. "Numerical Modeling The Effects Of Additive Manufacturing Parameters, Heat Treatment And Orientation On Residual Stress And Distortion Of Metal Powder In718 Pump Impeller Fabrication," Acta Mechanica Malaysia (AMM), Zibeline International Publishing, vol. 4(1), pages 22-26, July.
    • Handle: RePEc:zib:zbnamm:v:4:y:2021:i:1:p:22-26
    DOI: 10.26480/amm.01.2021.22.26
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    References listed on IDEAS

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    1. Ali Aminifar & Alireza M. Haghigh, 2020. "Effects Of Welding Current And Speed On Residual Stress And Distortion Of Joining St52 Rolled Plate In Different Welding Sequences," Acta Mechanica Malaysia (AMM), Zibeline International Publishing, vol. 3(2), pages 40-45, November.
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