Main Article Content
In the paper the results of research on rapid prototyping using electron beam and deposit-ed material in the form of wire are presented. Electron beam rapid prototyping with wire is an efficient method for manufacturing complex shapes from metal alloys such as alloy steels, nickel alloys or titanium. This technology is used primarily in the aviation industry, especially in the military as it is designed rather for a unit production or small series production. As part of the work, technological conditions of the process for which it is possible to deposit test pieces in the form of rectangular prism were determined. Test elements were made using a stainless steel wire grade G 18 8 Mn. Metallographic examinations and selected mechanical properties were investigated. The deposited material is characterized by austenitic with ferrite delta, cell-dendritic microstructure. There are large dendritic grains which are extended towards the heat dissipation – towards the substrate. The hardness in the deposited material is in the range of 192 to 273 HV0.05 depending on the number of layers. In the area of mixing with the substrate, the hardness reaches the value of 355 HV0.05.
This work is licensed under a Creative Commons Attribution 4.0 International License.
G. Klimov, N. Murray, Additive manufacturing using non-vacuum electron beam technology, Proceeding of 4th IEBW International Electron Beam Conference Aachen (2017), 99-103.
T.M. Butler and others, Evolution of Texture from a Single Crystal Ti-6Al-4V Substrate During Electron Beam Directed Energy Deposition, Metallurgical And Materials Transactions A (2017), vol. 48A, 4441-4446.
B. Baufeld, R. Widdison, T. Dutilleu: Electron beam additive manufacturing: Deposition strategies and properties, Proceeding of 4th IEBW Internatio- nal Electron Beam Conference Aachen (2017), 114-117.
M.E. Kinsella, Additive Manufacturing of Superalloys for Aerospace Application, Air Force Research Laboratory Report No AFRL-RX-WP-TP-2008-4318:1-7 (2008).
K.M.B. Taminger, R.A. Hafley, Electron beam freeform fabrication for cost effective near net shape manufacturing. AVT-139, NATO, https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080013538.pdf, 2006.
X. Shu, G. Chen and others, Microstructure evolution of copper/steel gradient deposition prepared using electron beam freeform fabrication, Materials Letters (2018), vol. 213, 374-377.
Z. Chen, H. Ye and others, Distortion control in a wire-fed electron-beam thin-walled Ti-6Al-4V freeform, Journal of Materials Processing Technology (2018), vol. 258, 286-295.
M.St. Węglowski, S. Błacha, Napawanie wiązką elektronów przy użyciu drutu, Przegląd Spawalnictwa (2017), vol. 89(10), 47-51.
J. Zhao, B. Zhang, A. Li and others, Effects of metal-vapor jet force on the physical behavior of melting wire transfer in electron beam additive manufacturing, Journal of Materials Processesing Technology (2015), vol. 220, 243-25.