Development of electron-beam equipment and technology for additive layer-wise wire cladding

V. V. Fedorov, V. A. Klimenov, A. V. Batranin, Pardeep Ranga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Currently, a wide range of additive technologies (or 3D printing technologies) are increasingly often used to obtain metal products of complex shape with anisotropic properties. A thick-walled part can be printed with less but sufficient precision (a few millimeters) and greater productivity by three-dimensional electron beam cladding with wire. The technology is based on a vacuum chamber with an electron-beam gun with a plasma emitter and modular manipulators, which enables layer-by-layer electron-beam melting (EBM) of powders or three-dimensional deposition of melted wire. Included software provides modular exchange and synchronized control of all system components according to the task using digital G-codes. The experimental printing was carried out at an accelerating voltage of 30 kV and a beam current from 15 to 20 mA. In this work, the samples from wires of Ti-6Al-4V titanium alloy and AISI 308 steel were printed on an electron-beam 3D-printer. The quality of the samples in terms of porosity and, hence, the mechanical properties was studied by non-destructive (computed tomography) and mechanical testing. It is shown that selecting proper modes of radiation exposure, wire feeding and beam scanning allows obtaining titanium and steel products with satisfactory mechanical properties. However, the problem of reducing macro porosity, especially for the titanium alloy, requires new approaches to optimizing the microstructural uniformity and porosity.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
EditorsVictor E. Panin, Sergey G. Psakhie, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419124
DOIs
Publication statusPublished - 19 Nov 2019
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 - Tomsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2167
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
CountryRussian Federation
CityTomsk
Period1.10.195.10.19

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fedorov, V. V., Klimenov, V. A., Batranin, A. V., & Ranga, P. (2019). Development of electron-beam equipment and technology for additive layer-wise wire cladding. In V. E. Panin, S. G. Psakhie, & V. M. Fomin (Eds.), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 [020097] (AIP Conference Proceedings; Vol. 2167). American Institute of Physics Inc.. https://doi.org/10.1063/1.5131964