Residual stress in TI6AL4V objects produced by direct metal laser sintering

Autor: Van Zyl, Ian, Yadroitsava, Ina, Yadroitsev, Igor
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: South African Journal of Industrial Engineering, Vol 27, Iss 4, Pp 134-141 (2016)
Druh dokumentu: article
ISSN: 1012-277X
2224-7890
DOI: 10.7166/27-4-1468
Popis: 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 inTi6Al4V DMLS samples were analysed.
Databáze: Directory of Open Access Journals