The issue of increasing the strength of cutoff and grooving tools is considered in the paper. The principle of strength balance of edge is offered to be used in designing the replaceable inserts. The calculations are made and the shape is designed for the strength balanced front surface of the cutting tools. The analysis of the received data is made and the regularities of the designed shape of the front surface of the cutting edge are established. Designs of replaceable cutting inserts made with a glance to structural characteristics and operating conditions of the cutoff and grooving tools are offered.

Keywords: strength, cutting end, strength balance, cutting end, cutoff tools

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: Герметичный компрессор объемного действия, система охлаждения, холодопроизводительность, перегрев, холодильный коэффициент COP, энергоэффективность.

The paper considers the comparison of power consumption of Two’s Complement System and Residue Number System for digital signal processing applications. The comparison of these two implementations allows to conclude that, for these applications, the RNS uses less power than the TCS counterpart. The aim of the present paper is to highlight the reasons of this power consumption reduction.

Keywords: residue number system, digital signal processing

The problem of stress concentration near step junction of sections in constructional elements and machine elements has been solved in this article by means of one singular integral equation. The formula for determination of stress concentration factor depending on fillet radius has been submitted.

Keywords: Step plate, singular integral equation, conjugation line, stress concentration factor

The technique of the geometrical analysis and the analysis of force loading of combined drills with the replaceable multiface plates is offered in this work. This technique is allowing to determine geometrical parameters and specific force loadings in each point of a plate’s cutting edge taking into account its orientation in the drill case. Application of this technique allowed to establish the reasons of the drill’s low durability. The offered technique allows to design drills from the minimum unbalanced radial component of cutting force which increases its working capacity and the processed holes quality. New designs of combined drills both with two, and with three replaceable multiface plates are offered in this work. The durability of this new drills is increased by the plates mutual turn for the minimization of an unbalanced radial component of cutting force  

Keywords: combined drill, replaceable multiface plate, drilling, design, equilibration, geometrical analysis, the analysis of power loading

Disassembling of NPP equipment, systems and metal constructions is a compulsory procedure in the final stage of NPPs work cycle, namely withdrawal. Disassembling technology is closely linked with some necessary conditions, that is why some mandatory requirements must be fulfilled.
The disassembling tasks can be carried out with the help of modern tech-nologies, means and instrumentware. The system of task-oriented engineering and adaptation to the environment and its conditions provides informational and me-thodical supporting in the process of developing the technology of equipment dis-assembling.   
This article presents the common methods and practical recommendations for developing the technological process of disassembling of NPP equipment.  

Keywords: NPP (nuclear power plant) unit, equipment disassembling, fragmentation, safety, permissible doses, remote control, engineering system, model, boundary condition, matrix

The investigated nanocomposites are characterized by more uniform distribution of amorphous and crystal phases. An optimal number of crystallization centers - nanoparticles leads to improve mechanical properties of polyethylenes. Introduction of nanofillers into a polymer matrix leads to the formation of cryptocrystalline supermolecular structure by reducing of the thermodynamic threshold of crystallization.

Keywords: low-pressure polyethylene, magnesium spinel, zeolites, nanofiller, the degree of crystallinity, X-ray diffraction, atomic force microscopy

The article presents the new technologies and design tools for опиливания of machine parts. A number of new technical solutions in the field of innovative Metalworking tool for опиливания parts of machines, with a complex of technical and economic advantages over existing analogues. Shows the five variants of constructions and technologies for the production of files and надфилей, based on the use of hard coating. New tools are characterized by a low-cost, low labour-intensiveness of manufacturing and high performance.

Keywords: tribology, the filing of a painful, spraying, carbide coatings, wear, self-sharpening, reversible cutting plates

We propose a method for cooling the condenser compression refrigerator, including the use of melt water wetting the surface of the water condenser. The water is directed into the groove in the middle part of which is the tube condenser coil, and the water flows by gravity to the tribes of the inclined groove, wetting the surface of the trough and tube condenser. Remains of meltwater routed to the tank on the compressor.

Keywords: Household refrigerating appliances, water, cooling, condenser, reducing energy consumption

The device for uninterrupted measurement of shaft wearing out by stuffing tightening is offered. The device for investigating sealing tightenings is worked out. Opticoelectronic systems are used for increasing the accuracy of measuring and for the purpose of uninterrupted monitoring in the construction of both devices.

Keywords: tribomonitoring, machines and mechanisms, optoelectronics, wear, seals

Some of the issues of a system approach to the development of composite antifriction coatings and also the phase desordered condition of the surface are considered

Keywords: tribology system, structural-phase disordered condition , composite coating, friction

Evaluating of the compressed air drying competitive methods for wagon depots are given in the article. The criteria for evaluating of each method are defined. The considered compressed air drying competitive methods profiles are built. The wet condensation ability effectiveness increase ways are defined.

Keywords: Compressed air drying, Competitive profiles, Wagon depot, Expert estimation

  Promising directions of making the environmentally sound shipping packages for spent nuclear fuel transportation and storage are considered.

Keywords: shipping package, spent nuclear fuel, transportation and storage

  Work results of technical decisions concerning improvement of damping devices for large-size containers in order to protect their contents from damage research are provided.

Keywords: container, damping device, shipping package

Investigated the quality of the surface layer of weld metal cylindrical part in the combined processes of under the flux layer welding and cutting, as well as follow grinding of weld metal in the hot and cold. Showing photos of the weld surface and the machined part and its structure

Keywords: grinding, hot weld metal, structure of the metal, micro hardness.

Today in modern engineering is the issue of improving the performance of high-temperature processing of products and composite materials (plastics). When machining holes such products plays a decisive role to increase the rigidity, the wear resistance of the cutting tool and as a consequence, reduction of marriage. Increased tool life is possible in two ways: by improving the physical and mechanical characteristics of the material of the cutting tool (eg, carbide) or developing the most efficient design. Study and practical use of the regularities of cutting plastics and other composite materials used in engineering, allows to better manage them in order to increase the productivity and efficiency of processing. Comparison of patterns of the cutting process with the laws of plastic metal cutting process is only necessary to consider the difference between them in the processing of machine tools using cutting tools.
Keywords: cutting tools, composite materials, processing holes.

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