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—The properties of an AlSi10Mg aluminum powder material are studied. Recommendations are presented on choosing heat treatment to improve the surface characteristics for producing a body-shaped part applied in an aviation engine by selective laser melting (SLM) of additive manufacturing.

The study of technological peculiarities of the 3D printing process of filter-type products is presented, the embedded porous structures are analyzed, and the method of porous body design is recommended. The technological features of various additive manufacturing methods that allow the manufacture of filter-type products for filtering different media are investigated.

Some results of studying the production of targets from silicide–oxide resistance materials for magnetron sputtering using pulsed powder pressing are presented.

One of the main directions in the development of modern mechanical engineering consists in the use of novel materials and technological processes for the production of parts and products, in particular additive technologies. Nowadays, dozens of technological processes and additive manufacturing plants based on a number of physical and chemical effects have been developed and implemented. A brief history, the basic principles, and the features and advantages of additive technologies are considered, and a system for their classification, based on a generalized morphological approach, is proposed. All the known and promising technologies are placed in a morphological matrix; further a space of possible technical solutions is analyzed and formed. The number of potential variants amounts to 276  420. The proposed classification of additive technologies is the most complete at the moment.

Currently, additive technologies, in particular, electric arc growth as the most universal and productive, are used to produce individual machine parts. The problem of studying the process of structure formation in alloys during electric arc additive growth to ensure the necessary parameters of the microstructure of a material and its mechanical properties is challenging. 09G2S steel samples for research are fabricated on a developed test bench implementing the technology of 3D printing by electric arc surfacing, microstructural studies on an optical microscope are used, and microhardness measurements are carried out. The features of structure formation in a 09G2S alloy during additive electric arc growth have been determined, and controlled parameters have been identified to ensure the necessary parameters of the structure and, consequently, the mechanical properties of the alloy. The heat input of the surfacing process and the temperature of a thermal cycle are found to play a significant role in the structure formation in the material. The conducted research and established dependences make it possible to control the structural state of 09G2S steel during cladding to ensure the required parameters of its microstructure and mechanical properties.

—The influence of heat and vibration treatment on the structure and mechanical properties of experimental specimens prepared from an ER70-S6 welding wire by additive electric arc growth is considered. Based on the results of impact strength tests, the cold resistance of the experimental specimens is estimated. Electron microscopy is used to analyze the microstructure of the material and to calculate the grain size. Heat treatment and vibration treatment are shown to significantly increase the cold resistance of the materials produced by electric arc cladding. Replacement of heat treatment operations is possible by introducing the function of vibration treatment of a weld pool into hybrid machining centers.

The appearance of defects in nickel monoaluminide NiAl granules during various processes of production of spherical granules is analyzed. The technological processes of producing granules are considered from the point of view of manufacturing high-quality raw materials. Quality criteria for producing nickel monoaluminide NiAl granules are determined. They include the minimum number of granules with internal porosity and other shape defects, high sphericity of particles, high stability of the particle sizes, the absence of satellites on the granules surface, the presence of a fine dendritic structure of the granule material, and so on. Several methods for producing nickel monoaluminide NiAl granules were investigated from the point of view of producing high-quality raw materials. The influence of cooling intensity and granule solidification rates on the dispersion of the material structure and the optimum parameters of centrifugal spraying of a rotating electrode, which ensure the production of high-quality granules, are determined. A developed and tested technology for producing a high-quality spherical NiAl material powder is proposed.

Metal products manufactured by means of additive technologies are usually characterized by unfavorable mechanical properties. Laser shock processing is mechanical processing of surfaces at a high strain rate, which hardens the near-surface layer and creates favorable mechanical properties. This work discusses the development of hybrid additive technology in combination with laser shock processing with additive technologies, and the role of laser shock processing in hybrid additive technology is analyzed using the finite element method. The results obtained demonstrate that the frequency of the hardened layer is a critical technological parameter influencing the redistribution of residual stresses, which strongly depends on the amount of heat released during 3D printing. Due to the results obtained, the hybrid additive technology developed occupies a position in various additive technologies and is promising for practical implementation as a new method for manufacturing high-quality metal products.

—The problems of forming the structure of heterogeneous powder materials of tool plates are considered. A high-quality powder material is found to be produced as a result of creating a more equilibrium structure in the form of rounded solid-phase particles, which have a high adhesion strength with the minimum free (surface) energy of the interatomic interaction forces in the solid components of alloys. When a structure of powder alloys with regular-shape particles (faceted, rounded) is formed, the most important properties of hard alloys are found to increase, which eventually ensures such stable performance indicators of parts as wear resistance, fatigue strength, creep, and impact toughness.

—This paper presents experimental results on the machining of parts fabricated from powder materials. The specifics of porous surface structure formation in powder-metallurgy parts upon abrasive finishing are described.