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CONTENTS STRUCTURAL MATERIALS, METAL SCIENCE

Gnyusov S. F., Makov D. A. — Structure-phase composition and abrasive wear resistance of austenitic composition coatings. Part 1

The article covers research results of the effect of heat treatment on the formation features of structure-phase composition of composition coatings (Fe—20 % Mn—4 % V—4 % Mo) + 15 % WC and (Fe—20 % Ni—4 % V—4 % Mo) + 15 % WC. Efficient aging mode enabling conservation of austenitic structure of matrix and obtainment of multimodal size distribution of carbide phase in the hardened layer volume is established.
Key words: composition coatings, carbide addition, austenite, tungsten carbide

BLANK PRODUCTION

Gamanyuk S. B., Rutsky D. V., Zyuban N. A., Konovalov S. S., Shuleshko D. G. — Effect of the shape of ingot bottom-most part on non-metallics’ distribution, chemical inhomogeneity and mechanical properties of obtained forged pieces

The paper presents research results of pollution by non-metallic inclusions, of chemical inhomogeneity and of the level of mechanical properties of forged pieces from ingots of standard geometry of 24,2 ton and from an ingot with concave bottom-most part of 22,5 ton from steel 38ХН3MФA. Reduction of medium-sized oxide, sulphide and oxysulphide inclusions by 6, 2,5 and 1,3 times, respectively was shown up cross section and along the height of the sample ingot as a result of intensive crystallization front advance in the vertical direction. Strength properties of the products from ingots with concave bottom-most part are 5—10 per cent on the average then from the ingots of standard geometry.
Key words: non-metallic inclusions, chemical inhomogeneity, mechanical properties, ingot, axial flaw, crystallization

TECHNOLOGIES AND EQUIPMENT FOR MACHINING, PHYSICOTECHNICAL PROCESSING, NON-CUTTING SHAPING

Kisel A. G., Razhkovsky A. A., Rechenko D. S., Popov A. Yu. — Increase of turn process accuracy by application of lubricating coolant fluids

Effect of lubricoolants of various brands on the component of cutting force which determines processing accuracy at turning of titanium alloy ВT3, heat-resistant steel ХН7ТЮР and aluminium alloy Д16 is under consideration. Research results allow to identify the most effective brand of lubricoolant for processing of certain material.
Key words: turn process, processing accuracy, lubricoolant

Ablyaz T. R. — Influence of wire-cutting electric erosion machining rates on surface condition

The results of research in the field of wide-EDM carved materials are presented. The empirical model allows to assess the impact of technological factors on the process of cutting precision machined surface.
Key words: electrical discharge machining, wireelectrical discharge machining, precision

TOOLING PRODUCTION

Kugultinov S. D., Zhilyaev S. V., Popov I. V. — Ensuring of specified cutting power at bore operations of large-size parts from titanium alloy ВТ6

The paper presents results of research on ensuring a given durability cutting tools for boring large-sized parts of titanium alloy ВT6.
Key words: titanium alloys, cutting mode, durability cutting tools

Yusupov G. Kh., Kolegov S. A. — Parameter optimization of the grinding wheel onset of diamond by criteria of diamond discharge intensity

Problems of grinding wheels wear at processing hart-to-machine materials are under consideration in the article. Magnitude of wear is explained, results of wear research are given, as well as high operating characteristic of diamond abrasive tools (that of grinding wheel) with tapered holes on the work surface.
Key words: diamond, wear, flare, hard-to-machine material, grinding

SPECIAL TECHNOLOGIES

Galushkin M. G., Yakunin V. P., Grigoryants A. G., Dyachkov R. G., Tretyakov R. S. — Power and optical characteristic of prospective solid-state lasers for material treatment

Characteristic of a thin platelet Yb:YAG-laser with hybrid resonator and pumping by diode lasers, including waveguide radiation propagation. Aimed at compensation of thermeal optical inhomogeneity of the active element, a sectionalized cooling system ensuring periodic change of heat flow direction is suggested.
Key words: laser treatment, solid-state lasers, power-producing characteristic, emission

Malov I. Ye., Shiganov I. N. — Progress trend of laser stereolithography technology

Progress trend of laser stereolithography, techniques of rapid prototyping, equipment developed by foreign companies are covered.
Key words: laser stereolithography, rapid prototyping, installation, Company 3D Systems

METROLOGY AND MEASUREMENT ASSURANCE

Kolosov S. P. — Method of intelligent analysis of dimension chains definition procedure for in-process part

A description of application and development of combinatorics algorithms in integration with data analysis techniques when solving manufacturing tasks of dimensional analysis of in-process parts’ chains with further implementation of alternate libraries in CAD solutions is offered.
Key words: dimensional chain analysis, instant state-building technique, part surface treatment

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Rzhevskin V. R., Samokhvalov A. B., Shemyakin V. V. — PCMS software for plant equipment control on the basis of risk assessment

RBI strategy is considered, which allows to control operational risk by enabling technology and optimal planning of inspection and maintenance.
Key words: software, equipment, risk, control

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Omelyanenko K. N. — Two-criterion system for welding arc voltage automatic control

An effective argon-arc welding process control system ensuring reliable arc space maintenance under conditions of geometry no-idealness of the welded tubular products is designed and investigated.
Key words: argon-arc welding, automatic welder, arc voltage, control

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Lotorevich Ye. A., Pushkarev S. A., Silantyev D. A., Tolok A. V., Feofanov A. N. — Specification of prototyping method to design office 3D printer

The work presents a classification scheme methods of rapid prototyping. Defined modern trends in design office of 3D-printer. Discusses the main advantages of the method stereolithography, as the most suitable of the modern developments for the development of the office of the 3D-settings.
Key words: stereolithography, rapid prototyping technology, voxel-graphical model, DLP-projector, light irradiation

ECONOMICS OF THE ENGINEERING INDUSTRY AND PRODUCTION ORGANIZATION

Khomenko V. V. — Method of feasibility study of programmes of technological support for high-technology innovative projects at early stages of life cycle

Methods of technical and economic feasibility of high-tech innovation projects in the early stages of the life cycle are examined. The appraisal criteria, target values, based on which the selection of rational choices of program activities and programs in general are proposed.
Key words: technical and economic feasibility programs, innovation projects, criteria, target values

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Ivanov A. N. — The 7th International specialized exhibition HEAT TREATMENT-2013

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