A mathematical model of the surface of deformation zones as a set of flat cross-section described on the basis of spline functions for profiling pipes in rollers with subsequent calibration is proposed.

Keywords: Mathematical model, deformation zone surface, flat cross-section, spline functions, рipe profiling

The article describes in detail the algorithm for constructing a mathematical model that allows you to describe the process of processing a spherical surface, provides an analysis of the change in the radius of the cutter, which allows you to choose the optimal cutting conditions and create conditions for automation of the process.

Keywords: Software, process automation, spherical surface, spherical surface treatment.

The mathematical model, the design of the milling head and the method of processing the spherical surface are considered in the article, the calculation formulas for determining the tuning dimensions and diameter of the processed sphere are given.

Keywords: Software, process automation, spherical surface, solid cutting, cutting, spherical surface treatment

Considered the importance of end-to-end technologies in the logging industry. Considered the importance of creating geographic information systems that allow rational development of leased forest areas taking into account the requirements of the forest legislation of the Russian Federation and minimizing the cost of a unit of harvested wood, in order to increase profits for logging enterprises.

Keywords: forest taxation, aerial photography, forest use, forest preparation, end-to-end technologies, geo-information systems

The article describes a method of processing, which allows to increase the efficiency of milling the end surfaces of the disks.

Keywords: Methods of metal machining, the parameters of cutting layer of metal, the cutting force, cutting modes

The article deals with the results of the practical implementation of the method of milling deep grooves of the turbine rotor.

Keywords: Turning, milling, disk milling, deep grooves

The absorbing apparatus serves to extinguish the impact when the wagons cohere and move. Most of the energy, about 80%, in this system is absorbed by a friction unit consisting of a friction wedge and a fixed plate. Absorption of energy in this system occurs due to the work of frictional forces arising during longitudinal motion of the pressure wedge with respect to the friction plate. Due to the large shock-frictional loads, intensive wear and destruction of the cermet cake occurs, which adversely affects the energy capacity of the absorbing apparatus. To eliminate these shortcomings, studies were conducted to create a new material. After numerous experiments, a composition was obtained with the optimum content of components, which maximally satisfies the working conditions of the friction unit and the requirements imposed on these devices.

Keywords: absorbing apparatus, friction unit, cermet, wear resistance, friction plate, powder material, sintering technology

This article is devoted to the review of production methods for determining the rigidity of technological systems based on metal cutting machines. A description of each method, its characteristics, describes the principle of the appearance of elastic strains of technological systems and the possibility of their measurement. For each method, the limits of its applicability and the possibility of using it in different production situations are given. The mathematical dependences are given which can allow the process engineer to estimate the value of the elastic deformations of the technological system and make appropriate adjustments even at the stage of production preparation (for example, to change the trajectory of the tool when writing the control program for CNC machines). A statistical method for determining the rigidity of technological systems is described, the graphical dependence of elastic deformations on cutting forces is given.

Keywords: Rigidity of the technological system, elastic deformation, technological system, cutting force, production method for determining rigidity

The article once again highlights the problem of injury growth in our country. The article presents the developed digital jumpsuit for work at height, excluding the possibility of violation of the rules of TB, controlling the integrity of the belts. It is concluded that human security, his life can not be given to him only in a rapidly developing technogenic society, a person should actively help digital technology

Keywords: poor working conditions, simple protective measures against the fall of man, fiber optics, probability, risk, and digital technology

In the article the possibilities of a modern system with numerical control FMS-3000(3200) compared to other common control racks. Given the specific production examples of the design of control programs for cases odnostoronnego and multilayer milling in power engineering. The analysis of the total length of programs and the complexity of their adjustments in the processing elements of the same type having different geometric dimensions. It is concluded that the use of specialized modal cycles in the control FMS-3000(3200) significantly increases the efficiency of program-controlled machining.

Keywords: system with numerical control, master control, machining, adjustment programs, technological equipment, routine, parameterization, multi-layered milling

A model for choosing the optimal version of the excavator arm is presented, combining classical methods of decision making and statistical modeling of the bearing capacity and loading parameters

Keywords: decision making, reliability, resource, modeling, single-bucket excavator, hilt, optimization

Stages of receiving samples of high-austenitic powder steel 110G13P a method of dynamic hot pressing are presented. Processes of formation of structure and properties of steklosoderzhashchy powder steel 110G13P are considered. Significant positive effect on formation of structure of powder steel 110G13P with application glass components is defined.

Keywords: high-austenitic powder steel, method of dynamic hot pressing, agglomeration, mechanical activation of furnace charge, oxidic films

Methods for conducting polarization measurements on electrodes made of 1X18H9T steel are considered. Anodic polarization curves of steel 1X18H9T were obtained in solutions of electrolytes without stirring and with stirring. Comparison of the obtained anodic polarization curves allowed to reveal the rational current densities for realization of technological processes of combined anodic and mechanical processing of this steel.

Keywords: polarization curves, electrolytes, 1X18H9T steel, combined treatment

The article describes one of the methods of machining deep grooves in the turbine rotor disk mill, analyzed the parameters of the shear layer, defined modes of processing and the main process time.

Keywords: milling techniques, the parameters of the shear layer, the maximum thickness of the cut, the cutting conditions, the cutting force, the main production processing time

The article shows that for more effective planning of forest harvesting operations logging companies require a tool that would assess the amount of industrial bucked wood produced on a сutting area by size, by groups and by timber species. It is so because data available on material and monetary value cut markedly differ from the actual results of the complex harvesting machines working, which are reflected in the summary statement of wood assortments acceptance.

Keywords: cut-to-length logging, marking-cut a coupe and taxation of cutting areas, harvester control systems, a summary statement of wood assortments acceptance

Providing the claimed performance characteristics of the absorber throughout its life is the most important task that ensures the correct operation of the coupler. Increasing requirements for increasing the speed of movement and the volume of freight traffic make it urgent to increase the reliability of the absorbing apparatus by improving the design of its components and components (housing, friction plates, wedge, etc.).

Keywords: Absorbing apparatus, friction plate, cermet, surface wear, defects in absorbing apparatus

The paper considers the optimization of technological process of manufacturing of the coils of the steam generator based on the concept of lean manufacturing. The analysis of the manufacturing process of the coils revealed problems: the yield of the pipe after conversion of the bending machine, large inventory of finished tubes, stored on the stocks vertical storage (racks), loss of time for travel, due to the placement site of flexible pipes in different spans, continuous changeover. To solve these problems were applied the principles of lean production. As a result of the optimization was able to reduce WIP 70%, to reduce logistics and remoteness of workplaces in the production flow by 10 times, reduce the time of processes for the conversion of 2 times, to reduce the risk of traces of mechanical damages on the surface of the coils.

Keywords: Lean production, value of production losses, the coils of the steam generator, and process optimization

One of the problems of machine building is the definition and measurement of the geometric shape of large-sized parts of machines and mechanisms, which are often the bodies of rotation. Similar parts are used with high intensity in the drum type connections. Therefore, diagnostics of parts is required to determine the possibility of their further use. One of the criteria for this is the shape of the surface of the part and its deviation from the normative values. In the framework of this article, a method for estimating the shape of large-sized bodies of revolution considered which makes it possible to perform measurements with high accuracy for parts of arbitrarily large dimensions

Keywords: large items, large rings, deviations from roundness, body rotation

This article presents the results of tests of samples on the basis of equiatomic alloy with shape memory effect. The obtained system of dimensionless quantities that adequately describe the elastic-plastic deformation. It is established that the assessment of scale effects in modeling shockproof device-based alloy with shape memory effect leads to the technical ability of extrapolation of experimental results to other objects to generate the initial data of the mathematical model under the condition of similarity of characteristics of external loads.

Keywords: shock proof device, elastic-plastic deformation, shape memory effect, protection of the joints, scale factor

Investigated the influence of contents of sodium - carboxymethylcellulose, glycerin and powder Fe on electrical properties of composite coatings. Proposed regression model describing the relationship of the values of the electrical resistivity of the coating and dielectric strength to their composition used to predict the electrical properties of the formed coatings. Showed the correlation between the microstructure of coatings with Fe powder and electrical properties.

Keywords: sodium-carboxymethylcellulose, the iron powder, dielectric strength, resistivity, composite material

The paper presents modern techniques of the methodology of system approach to training. Reflected in article forms of socio-educational systems help greatly The paper presents experiences in building an organic link between the systems of secondary vocational education and higher education in the field of research work performed by students of undergraduate and graduate programs, as well as students in College. In this paper, a concrete example of possible practical cooperation in the system of research and development work.

Keywords: the effectiveness of training, scientific-research work of students, the activation of cognitive activity of students, automatic capture of tube, traverse.

The work carried out to optimize the design and manufacturing process of the main working element of the horizontal mixer - paddle shaft. Achieved reduction in metal consumption and labor input shaft, improved mechanical properties of the elements of his installation. This allowed for the production of products of the required quality at substantially lower cost of production process.

Keywords: roller blade, horizontal mixer, optimization, design, process, material procurement, machining, reduction of production costs

In the article we consider the problem of carrying out aerial photography at survey of cuttings, which has arisen in connection with acceptance of new edition of the Forest Code of the Russian Federation. As a solution of this problem the author has offered a technique of survey of cuttings from UAVs (drones). Moreover, in this article author has offered options on selection of models, modifications of drones and the software.

Keywords: drone, quadcopter, possibility of using, harvesting, aerial photography

The process of profiling tubes with rollers was considered. The method of solving the problem was considered. The stress-strain state of the metal in this process was determined, the equations of relative deformations was given, the shear strain intensity in cylindrical coordinates are given for the case of a plane homogeneous deformed state. The stress state index was defined

Keywords: Pipe profiling, deformation, stress, flat pattern, mathematical model, stress concentration, stress-strained state, stress state index

The article suggested the direction of automation of metrological support at the stage of production. As the object of automation is selected the calibration. The developed computer program that allows you to increase the simplicity and reduce the complexity of verification. The program is based on the revealed regularities in the execution of verification

Keywords: Metrological assurance, Metrology, calibration methodology, calibration, caliper SHC-1, Delphi