Journal
SOUTH AFRICAN JOURNAL OF INDUSTRIAL ENGINEERING
Volume 27, Issue 4, Pages 134-141Publisher
SOUTHERN AFRICAN INST INDUSTRIAL ENGINEERING
DOI: 10.7166/27-4-1468
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Funding
- South African Research Chairs Initiative of the Department of Science and Technology
- National Research Foundation of South Africa [97994]
- Collaborative Programme in Additive Manufacturing [CSIR-NLC-CPAM- 15-MOA-CUT-01]
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Direct Metal Laser Sintering produces 3D objects using a layer-by-layer method in which powder is deposited in thin layers. Laser beam scans over the powder fusing powder particles as well as the previous layer. High-concentration of laser energy input leads to high thermal gradients which induce residual stress within the as-built parts. Ti6Al4V (ELI) samples have been manufactured by EOSINT M280 system at prescribed by EOS process-parameters. Residual stresses were measured by XRD method. Microstructure, values and directions of principal stresses in Ti6Al4V DMLS samples were analysed.
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