The problem with obtaining high efficiency screening process in the coal, metal mining, building and other industries lead to invent new constructions of the screeners. The rapid progress of screening techniques and screen design was observed in the past and nowadays the development of screen is stabilized and most of equipment produced by various machines companies is very similar. In spite of this, there is always a need to improve the performance of screens. Increase capacity and efficiency of screening process on the one hand, and decrease its ecological footprint are the main goals of development of a new screening equipment. The screening machines inventive method is parametric resonance excitation of the screen sieve mesh. The model of laboratory screener based on parametric resonance for fine granular materials is presented in this paper. The working principle of the screener is included showing, that the parametric resonance screener could obtain a complex motion of the sieve, which is desirable with processing naturally wet fine granular materials.

This article is the description of the additive technology used for the production of aviation parts made of stainless steel and titanium, and shows the direction of further research and development of this technology for the needs of the aviation industry. The application of the robot-controlled LBDMD system (robotized laser based direct metal deposition for aircraft parts), which uses a 6-axis robot arm with a rotary table, has been shown in this paper. The LBDMD system simplifies the development of the multidirectional deposition process for complex parts, significantly reducing their production time. The benefits obtained from the use of additive manufacturing (AM) technology in the production of aviation parts were presented.