Abstract
The aim of this paper was to investigate the feasibility of the fabrication of a bead using a plasma electron beam and Stellite21 powder for the development of a novel metal additive manufacturing (AM) process. A proper preheating scheme was examined to prevent spreading of supplied powders via the preheating experiments. From the results of preheating experiments, the preheated plate was fabricated without preheating of the base plate. The deposition bead was created at room temperature through deposition experiments. The influence of the acceleration voltage on the formation, the morphology and the hardness of the bead was discussed. Considering high temperature conditions of an electron beam melting process, it was noted that the newly designed process can reduce the applied energy and the thermal impact of metal AM processes using electron beams for small and thin parts.
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References
Ahn, D. G., “Direct Metal Additive Manufacturing Processes and Their Sustainable Applications for Green Technology: A Review,” Int. J. Precis. Eng. Manuf.-Green Tech., Vol. 3, No. 4, pp. 381–395, 2016.
Ko, H., Moon, S. K., and Hwang, J., “Design for Additive Manufacturing in Customized Products,” Int. J. Precis. Eng. Manuf., Vol. 16, No. 11, pp. 2369–2375, 2015.
Murr, L. E., Martinez, E., Amato, K. N., Gaytan, S. M., Hernandez, J., et al., “Fabrication of Metal and Alloy Components by Additive Manufacturing: Examples of 3D Materials Science,” Journal of Materials Research and Technology, Vol. 1, No. 1, pp. 42–54, 2012.
Gong, X., Anderson, T., and Chou, K., “Review on Powder-Based Electron Beam Additive Manufacturing Technology,” Proc. of ASME/ISCIE 2012 International Symposium on Flexible Automation, pp. 507–515, 2012.
Sigl, M., Lutzmann, S., and Zäh, M., “Transient Physical Effects in Electron Beam Sintering,” Proc. of Solid Freeform Fabrication Symposium, pp. 397–405, 2006.
Electron Gun, https://en.wikipedia.org/wiki/Electron_gun (Accessed 14 SEP 2017)
Walton, S. G., Boris, D. R., Hernańdez, S. C., Lock, E. H., Petrova, T. B., et al., “Electron Beam Generated Plasmas for Ultra Low Te Processing,” ESC Journal of Solid State Science and Technology, Vol. 4, No. 6, pp. 5033–5040, 2015.
Körner, C., “Additive Manufacturing of Metallic Components by Selective Electron Beam Melting - A Review,” International Materials Reviews, Vol. 61, No. 5, pp. 361–377, 2016.
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Lee, HJ., Ahn, DG., Song, JG. et al. Fabrication of beads using a plasma electron beam and Stellite21 powders for additive manufacturing. Int. J. of Precis. Eng. and Manuf.-Green Tech. 4, 453–456 (2017). https://doi.org/10.1007/s40684-017-0050-x
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DOI: https://doi.org/10.1007/s40684-017-0050-x