Automatic Welding, 2022, №02

2022 №02 (02)

DOI of Article 10.37434/as2022.02.03

2022 №02 (04)

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"Avtomatychne Zvaryuvannya" (Automatic Welding), #2, 2022, pp. 16-25

Additive electron beam technology of manufacture of metal products from powder materials

V.A. Matviichuk, V.M. Nesterenkov, O.M. Berdnikova

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

The aim of the work is to create additive electron beam technology of layer-by-layer manufacturing of metal parts from powder materials. To conduct investigations, a model of additive equipment was made, a software and hardware platform for additive manufacturing was designed, technological methods and modes of printing products of a set shape with predicted strength properties were invented. Applying the additive method, 25 experimental samples for further tests were printed. For each of the products, the speed of beam movement, its power and dynamic focusing current were determined. The influence of basic parameters of the technological process of surfacing on the formation and features of the surface structure and chemical composition of the samples were studied. It was established that the chemical composition of the products corresponds to the composition of raw materials except for the content of aluminum, which is underestimated by 0.6…1.96 % relative to the chemical composition of the powder. To eliminate this drawback, it is necessary to maintain the aluminum content in titanium alloy powders at the highest level. According to the results of investigations on the created equipment, computer and industrial products were printed on computer models, the printing modes of which are optimized. Of titanium alloy powders the models of stator blades of a gas turbine aircraft engine, human skull implant and bioprosthesis were manufactured. 8 Ref., 4 Tabl., 15 Fig.
Keywords: additive technology, 3D printer, electron beam surfacing. metal powder, titanium alloy, chemical composition, surface microrelief.


Received: 13.12.2021

References

1. Nesterenkov, V.M., Matvejchuk, V.A., Rusynik, M.O. et al. (2017) Application of additive electron beam technologies for manufacture of parts of VT1-0 titanium alloy powders. The Paton Welding J., 3, 2-6. https://doi.org/10.15407/tpwj2017.03.01
2. Matviichuk, V.A., Nesterenkov, V.M. (2020) Additive electron beam equipment for layer-by-layer manufacture of metal products from powder materials. The Paton Welding J., 2, 41-46. https://doi.org/10.37434/as2020.02.08
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7. Iliyushchenko, A.F. (2019) Additive technologies and powder metallurgy. Minsk, Medison [in Russian].
8. Powder Ti6Al4V ELI. Site: Sino-Euro Materials Technologies. https://en.c-semt.com/ti/09.12.2021

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