Volume 6, 2019
Special Issue - The emerging materials and processing technologies
|Number of page(s)||13|
|Published online||22 March 2019|
Powder-bed additive manufacturing for aerospace application: Techniques, metallic and metal/ceramic composite materials and trends
Israel Institute of Metals, Technion R&D Foundation,
2 Sports Tech Research Centre, Mid Sweden University, Östersund, Sweden
* e-mail: firstname.lastname@example.org
Accepted: 22 February 2019
The current paper is devoted to classification of powder-bed additive manufacturing (PB-AM) techniques and description of specific features, advantages and limitation of different PB-AM techniques in aerospace applications. The common principle of “powder-bed” means that the used feedstock material is a powder, which forms “bed-like” platform of homogeneous layer that is fused according to cross-section of the manufactured object. After that, a new powder layer is distributed with the same thickness and the “printing” process continues. This approach is used in selective laser sintering/melting process, electron beam melting, and binder jetting printing. Additionally, relevant issues related to powder raw materials (metals, ceramics, multi-material composites, etc.) and their impact on the properties of as-manufactured components are discussed. Special attention is paid to discussion on additive manufacturing (AM) of aerospace critical parts made of Titanium alloys, Nickel-based superalloys, metal matrix composites (MMCs), ceramic matrix composites (CMCs) and high entropy alloys. Additional discussion is related to the quality control of the PB-AM materials, and to the prospects of new approaches in material development for PB-AM aiming at aerospace applications.
Key words: additive manufacturing / aerospace materials / powder-bed / high entropy alloys / titanium alloys / superalloys
© A. Katz-Demyanetz et al., Published by EDP Sciences 2019
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