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CONSTRUCTIONAL MATERIALS, PHYSICAL METALLURGY

Vyalkov V. G., Glazunov S. N., Tsyrkov P. A. — Identification of the actual austenitic grains boundaries of alloyed steels by hydrogen embrittlement of the material

The present work is devoted the method of detecting the actual grain size of alloyed austenitic steel, which must be considered when obtaining a defect-free parts that meets the necessary operational requirements.
Key words: identifying the size of the austenitic grain, chemical etching, diffusion saturation, brittle fracture, hydrogen embrittlement, electrolytic hydrogenation

BLANK PRODUCTION

Filina А. V., Semeshin А. L., Kuznetsov Yu. А., Kravchenko I. N. — Quality study of the end surface of short blanks obtained in shears by shear

The article is devoted to the study of the quality of cut from long rod blanks in dies of open and closed type. Advantages and disadvantages of the design features of dies, implementing a scheme of cutting rolled. The results of the analysis of the quality of the workpiece surfaces obtained by the shear segment in dies are presented.
Key words: shear strain, stamp, blank, cutting, rod material

TECHNOLOGIES AND EQUIPMENT FOR MECHANICAL, PHYSIC TECHNICAL PROCESSING, PRESSURE TREATMENT

Gubanov V. F. — Parameters of the parts surface layer at the rolling-smoothing with a mineral-ceramic indenter

In the article parameters of the parts surface layer quality, reached at rolling-smoothing, in case of using the tool with mineral-ceramic indenter are considered. Based on the results of experimental studies, the ranges of rolling-smoothing regimes are established, which make it possible to comprehensively provide the minimum value of the average arithmetic deviation of the surface roughness profile and the maximum value of the parts surface layer microhardness. The quality parameters of the surface layer formed by rolling-smoothing allow us to recommend this process utilization for finishing and hardening the working surfaces of the critical parts.
Key words: rolling-smoothing, mineral-ceramic indenter, processing modes, roughness, microhardness

TECHNOLOGIES AND MACHINES FOR WELDING PRODUCTION AND RELATED PROCESSES

Ashikhin D. S., Berkutov I. V., Stepanova K. А., Kotovshchikov I. О., Fedorov А. V., Svitnev I. V., Yakovlev Yu. O., Bychenok V. A. — Quality ensuring of butt aluminum joints obtained by friction stir welding

The verification of the measurement methodology for the parameters "thickness" (parameter characterized by the thickness of the welded edges) and the "gap" (parameter characterized by the distance between the root side of the welded edges and the back) was performed. Experimental researches the influence of the parameters "thickness" and "gap" on the quality of the aluminum butt welded joints obtained by friction stir welding were carried out. The results of non-destructive (X-ray) and destructive (static tensile and bending tests, metallographic) researches of samples obtained at different values of the parameters "thickness" and "gap" are adduced.
Key words: friction stir welding, thickness of welded edges, clearance between back and root part of seam, radiographic method of flaw detection, destructive research method

Manoylo Е. D., Andreev М. А., Onashenko F. E. — Gas flame coating from polymer powder "RILSAN" and compositions based on it

A brief analysis of the existing methods gas-flame coating from polymer powders and a number of parts coating processes of equipment operating under different operating conditions are presented, as well as the equipment used. In accordance with the developed technologies, heating of the sprayed surface, layer coating and its melting are carried out using gas flame equipment and combustible gas MAF. Polyamide-11 "RILSAN" polymer powder and composite materials based on it, protected by patents, are used as a coating material. The equipment service life is considerably improved in all applications of coatings.
Key words: gas-flame coating, polymer coatings, powders, composite materials, restoration of parts

SPECIAL TECHNOLOGIES TYPES

Rogov V. А., Zhed О. V. — The influence of the rim preliminary stressed state due to interference with the base part in calculating the flexural strength of the tooth

Investigated by the method of photomechanics, the stress-deformed state (TDS) of a non-rigid gear crown, in which the shape of the hole is distorted during the clean-working process due to elastic deformations from the clamping forces of the cams of the selfcentering cartridge. For this reason, when the crown is placed on the base part with interference, there is uneven pressure on the contour of its hole, which causes the formation of a preliminary non-equalized TDS in the transitional fillets of the interdental space, which reduces the service life of the gear crown by flexural stresses.
Key words: dentate crown, photomechanics, whole shape accuracy, interference, preliminary uneven stress-strain state

MACHINE TOOLS AND CUTTING TOOL PRODUCTION

Ragrin N. А., Aynabekova А. А. — Reveal of the errors influence regularities at spiral drills sharpening on the quality of drilled holes

Results of laboratory researches of regularities of influence of an axial beating of the cutting edges of spiral drills and parameters of the mode of cutting on indicators of quality of the drilled openings are presented. The mathematical model considering influence of an axial beating of the cutting edges of spiral drills and parameters of the mode of cutting on indicators of quality of the drilled openings is developed.
Key words: spiral drill, opening, admission, size, quality, diameter, speed, roughness, perpendicularity

MATHEMATICAL MODELING, NUMERICAL METHODS, PROGRAM COMPLEXES

Ponomarev М. А., Kurkin А. S. — Designs development of reinforced nozzles (weldolet) on the basis of computer simulation of their fatigue strength

The methodic of weldolets design based on detection of common features of tee connections deforming with computer modeling is represented. The simplified model was used to find out the deforming mechanism of tee connections of weldolet with pipe. The mechanism were studied for different diameters ratio of branch and in-service pipes The common factors of stress concentrations were identified based on the deforming mechanisms for the most loaded zones. The recommendations of the weldolet geometry parameters based on the decline of the identified factors influences on the fatigue strength were proposed. The full-scale experiments of the weldolet structures confirmed the recommendations.
Key words: tee connections, weldolets, computer modeling, fatigue strength

STANDARDIZATION AND QUALITY MANAGEMENT OF PRODUCTS

Tsukurov О. А. — State, problems of development and prospects for the application of technical regulations for products whose safety is determined by welding processes

It is adduced a brief review of the modern system principles of technical regulation in the Russian Federation, the Eurasian Economic Community (EEC), Customs Union (CU) and the Eurasian Economic Union (EEU) in relation to technical regulations on products for the manufacture of which welding processes are applied. It is evaluated the conformity of the current technical regulations of the Customs Union-TR TC 032/2013 "On the safety of equipment operating under excessive pressure" to the requirements of the fundamental technical documents of the Customs Union in the field of technical regulation, European Directive 97/23 / EC and the Federal Law RF "On Technical Regulation".
It is indicated the necessity to identify the objects of technical regulation in the schedule, including welding processes, the establishment and implementation of requirements for them and compliance evaluation of the regulation objects with the technical regulations.
The objects of technical regulation (products, materials, welding processes) and the corresponding standards of the European Reference Directive 23/97 EC "On the safety of equipment operating under excessive pressure" for usage in the technical regulations of the Customs Union are considered. Explanations over the application of the "Recommendations on the content and the standard structure of the technical regulations of the Eurasian Economic Union" regarding the management of technical regulation facilities in the schedule are given.
The article is mainly addressed to developers of technical schedules, direct executors of requirements of technical schedules requirements — manufacturers of products, as well as specialists of certification agency that validate the conformity of products to the regulations of TR TC 032/2013.
Key words: technical regulation, technical schedule, standard, equipment operating under excessive pressure, objects of technical regulation, the Customs Union, the Eurasian Economic Union (EEC), EU Directives, conformity evaluation

ECONOMICS OF MACHINE BUILDING, PRODUCTION ORGANIZATION

Molchanskiy А. V., Barabash Zh. А., Konovalova N. N. — Research methodology of the economic significance function for changing basic funds taking into account the nomenclature and program products output

The costs levels changing at the composition, loading, quality and quantity of production funds changing for production problems decision in the experimental production conditions is researched in this article. The purpose of the article: research the economic usefulness function of production funds with a change in their composition.
Key words: production funds, function of economic utility, leasing, modernization, program of output

Glebanova А. Yu., Pisarenko О. V. — The application of the grading system and key performance indicators (KPI) as an efficiency management tool in the science-intensive organizations of the Russian engineering industry

In the article the problems and prospects for improving the grading system and labor efficiency indicators using modern methods are considered. The author analyses the effectiveness of introducing methods based on progressive approaches into the personnel management system. The results evaluation of integrating KPI methods into the management system at enterprises of science intensive economy branches is given too.
Key words: grading system, personnel management system, science intensive branches, integration of performance indicators methods

FOREIGN EXPERIENCE

Potapova G. S. — Content of foreign journals

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