INVESTIGATION OF THE PROPERTIES OF DIRECT ENERGY DEPOSITION ADDITIVE MANUFACTURED 304 STAINLESS STEEL

Authors

  • Shaik E. Hoosain Research and Development Department Transnet Engineering
  • Lerato C. Tshabalala National Laser Centre Council for Scientific and Industrial Research
  • Samuel Skhosana National Laser Centre Council for Scientific and Industrial Research
  • Christopher Freemantle Pilot Tools Pty, Johannesburg, South Africa; University of the Witwatersrand
  • N. Mndebele Research and Development, Transnet Engineering

DOI:

https://doi.org/10.7166/32-3-2661

Keywords:

additive manufacturing, 304 stainless steel, mechanical properties

Abstract

One of the main considerations in adopting the additive manufacturing (AM) technology is whether the material properties of the AM-produced part are comparable with the wrought material. This study compared the properties of AM-produced 304 stainless steel via the direct energy deposition (DED) AM process with wrought 304 stainless steel. The samples were studied in their as-built or as-received condition; and the characterisation analysis included micro-structural evaluation, hardness tests, Charpy impact testing, tensile testing, and X-ray diffraction. The results demonstrated that, in general, the strength characteristics of the AM sample exceeded those of the wrought material other than for toughness.

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Author Biographies

Shaik E. Hoosain, Research and Development Department Transnet Engineering

Research and Development Department

Lerato C. Tshabalala, National Laser Centre Council for Scientific and Industrial Research

National Laser Centre

Samuel Skhosana, National Laser Centre Council for Scientific and Industrial Research

National Laser Centre

Christopher Freemantle, Pilot Tools Pty, Johannesburg, South Africa; University of the Witwatersrand

Pilot Tools Pty

N. Mndebele, Research and Development, Transnet Engineering

Research and Development

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Published

2021-11-29

How to Cite

Hoosain, S. E., Tshabalala, L. C., Skhosana, S., Freemantle, C., & Mndebele, N. (2021). INVESTIGATION OF THE PROPERTIES OF DIRECT ENERGY DEPOSITION ADDITIVE MANUFACTURED 304 STAINLESS STEEL. The South African Journal of Industrial Engineering, 32(3), 258–263. https://doi.org/10.7166/32-3-2661

Issue

Vol. 32 No. 3 (2021)

Section

Special Edition

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