Abstract
The paper presents the results of work on re-engineering of safety critical parts of imported equipment, including the selectionof parts optimally suited for manufacturing by the additive technology (AT) method using additivity coefficient calculations, creation of 3D-models and design documentation, material execution of parts, construction by the selective laser melting of metals (SLM) method. The paper comprises of analysis of the structure on different axes of construction, mechanical characteristics and hardness of the material obtained by the AT method. In the study of the structure and strength characteristics, anisotropy associatedwith layer-by-layer growth of the part is revealed. The main disadvantage of the structure obtained by the SLM method is porosity, but with the developed printing modes, this parameter can be controlled and a quality structure with a minimum porosity size(up to 2 μm) can be guaranteed.
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