Abstract: The use of copper-coated aluminum electrodes in the electrical discharge machining of 38X2H2MA steel is assessed. Such electrodes prove effective. The use of coated electrodes improves the economics of electrical discharge machining by permitting the use of cheaper materials in the electrode core.

Abstract: The proposed planetary reaming method permits discontinuous turning in which the cutting edge moves relative to the cutting surfaces. As a result, individual sections of the cutting zone move successfully in and out of the machining zone. Discontinuous turning is free of the deficiencies of continuous turning.

Abstract: The KOMPAS-3D CAD system includes a CAM application for turning by means of a numerically controlled module. As an example, the use of this application is considered for the machining of a bush.

Abstract: The effective application of Unigraphics NX software in preparations for production is discussed. Optional approaches to the design of workpieces and attachments and the development of operations in numerically controlled machine tools on the basis of Unigraphics NX software are outlined.

Abstract: Means of faster and better technological preparation for multiproduct manufacturing are considered. The possibility of technological preparation in parallel with design and organizational preparation is demonstrated. An approach to organizational and technological design in the development of manufacturing processes is proposed. In this approach, the dynamics and goals of production systems are taken into account. A timeline for the introduction of the proposed approach is outlined, and the conditions for its successful implementation are specified.

Abstract: A drive system that reduces the drag on a vehicle traveling over deep snow cover is described.

Abstract: Ambient noise harms the human organism: it produces high levels of the stress hormones, disrupts the operation of the nervous system, provokes cardiovascular damage, and impairs hearing In the creation of new noise-reducing materials, the goal is to increase porosity without loss of structural strength With greater porosity and reduced thickness, acoustic insulation will be lighter, which is better for use in automobiles In addition, the dynamic characteristics are improved, and vehicle assembly is simplified

Abstract: A method is proposed for planning the energy expenditures in production buildings with numerically controlled machine tools. The calculations take account of the individual production operations, as well as the actual state of the machine-tool drives.

Abstract: A method is proposed for selecting optimal tool geometry and identifying the best lathe tool for specific applications from a catalog or database.

Abstract: Multifunctional optimization of the content of three-component lubricant (bitumen + stearic acid + foam glass) with respect to three criteria is based on experimental data. The three criteria are the frictional coefficient, the wear rate of the wheel rim, and the lubricant consumption.

Abstract: The operation of a cutting wedge is studied in order to improve coating application on tools. A method of investigating the coating characteristics in plant conditions is outlined. The mechanisms of coating failure in cutting are established. The blunting of tools in the course of operation is analyzed. Coating application is optimized.

Abstract: Facets must be machined at the end of gear teeth. The shaping of facets by single-turn worm mills is considered in detail. Deficiencies are found in familiar design methods for such mills. Formulas are proposed for the calculation of single-turn worm mills used in machining conical round-tooth gears.

Abstract: The behavior of press-fit joints under the action of ultrasound is studied. The influence of ultrasound and the tightness of the joint on the quality of assembly is considered.

Abstract: Optimization of the application of electroacoustic coatings is considered, taking account of their structure, properties, and environmental impact.

Abstract: The microstructure of spherical inclusions (globules) in grinding sludge is analyzed, and the inclusions are classified. Their basic defects are considered. The formation of the spherical inclusions and their defects is explained in terms of the theory of physicochemical combustion of metal. Typical stages of chip combustion in the course of grinding are identified.

Abstract: The operational reliability of eccentric free-wheel mechanisms (of both frictional and nonfrictional types) in a pulsed variable-speed drive is studied by calculation and experiment. The grades of steel ensuring the longest life of such mechanisms in pulsed loading are determined.

Abstract: The attractive manifolds formed in end milling are analyzed. Such states are formed if the trajectories of steady periodic deformational tool displacements are unstable overall or in individual sections. In the dynamic milling system, attractive manifolds in the form of limit cycles, invariant tori, and strange (chaotic) attractors may appear. Bifurcations of attractive manifolds in parameter space are analyzed at length, with examples. Interest centers on how attractive manifolds affect manufacturing quality.

Abstract: The reliability of centrifugal–rotational finishing by steel shot is assessed This process ensures effective and stable quality of the machined part

Abstract: The ultrasound treatment of curved contours and complex surfaces is considered. Appropriate design approaches are discussed. As examples, automated ultrasound treatment processes are presented.

Abstract: Mathematical models for the control systems of industrial robots permit calibration of the base, which is a single coordinate space for the industrial robot and the components being manipulated. Calibration of the base precedes operation of the robot. Control systems for industrial robots permit the storage and use of several calibrated bases in programming robot motion.

Abstract: Machining centers and multifunctional machine tools are used in computerized integrated production. They are equipped with a large number of cutting tools for production of a specific batch of parts. In such automatic systems, monitoring and control systems replace the human operator. Monitoring of the state of machining systems is essential today in monitoring and control of the machining operations [1, 2]. It is important to create monitoring systems to support reliable tool operation in multifunctional machine tools. The goals of such systems are to minimize the damage from serious disruption of tool operation and to ensure timely tool replacement. To that end the multifunctional machine tools and/or the numerical control system must be equipped with sensors and various monitoring devices. A strategy must be developed for the prevention of disruption of the machining process and tool failure.

Abstract: Hydrocarbon pollution of wastewater is unavoidable in industry and transportation. Pollution monitoring, which forms part of environmental protection, may be based on measuring the optical density of water samples. In the present work, a device for this purpose based on a diamond UV photodetector and a nonmonochromatic UV source is described.

Abstract: A model is proposed for determining the geometric parameters in the mating of parts with conical surfaces that include shape errors. Theoretical and experimental results on the mating of such parts are presented.

Abstract: A press is proposed for the maximum possible extraction of oil from high- and low-oil crops.

Abstract: The dependence of the hydrogen supplied to the hydrogenation reactor on the acetylene concentration is simulated. An algorithm is proposed for automatic cascade control of selective hydrogenation. That permits optimization of the hydrogen supply on the basis of the actual acetylene concentration in the ethane—ethylene fraction and the input of raw materials to the reactor.

Abstract: The influence of hollow aluminosilicate microspheres on the efficiency of elastomeric thermoprotective materials based on ethylene—propylene rubber is considered. The introduction of hollow aluminosilicate microspheres, even in small quantities, decreases the density and heat conductivity of such materials, with no loss of physical and mechanical properties.

Abstract: In order to understand the shaping that results from a particular machining technique, the cross section of the cut layer must be determined A method is proposed for calculating the parameters of the cutlayer cross section in oblique single-edge boring by a radial cutter Formulas for the thickness and width of the cut layer are based on the main cutting parameters: the supply, the cutting depth, the diameter of the insert, and the diameter of the hole produced The proposed calculations may be used in the design of the cutting tool and the machining process

Abstract: The fatigue failure of steel 20 at low temperatures is considered. Strain hardening of the surface layers is found to occur in adiabatic conditions at low temperatures. That increases the fatigue strength. Fatigue cracks form and grow along the grain boundaries. The influence of impurities on the fatigue failure of low-carbon steel is studied.

Abstract: The principles of two-sided laser shock processing (LSP) are considered. The differences between two-sided and one-sided laser shock processing are noted. For the example of a thin VT-6 titanium-alloy plate, finite-element modeling is used to investigate the residual stress field when using two-sided LSP. The distribution of surface microhardness is analyzed.