Metalloobrabotka № 6 (84)/2014

Processing Of  Materials By Cutting

Naumov A. G., Latyshev V. N., Radnyuk V. S., Komel'kov V. A., Elovskii V. S. The experience of studying the characteristics of the cutting materials and wear resistance of the cutting tool

There are questions of tribological research in terms of the blade cutting and friction of metals. Experimental results of studying the characteristics of the processes of contact interaction in the presence of cutting technological means. The main attention is paid to the description of the original techniques developed Ivanovo scientific school, and equipment that was used to implement them.

Keywords: the blade cutting, friction, tribology, contact interactions, cutting technology tools, research methods and equipment.

Nikitkov N. V., Shabalin D. N., Kovelenov N. U. Production of compact turbine blades from ceramic by tourus-shaped adamand abrasive wheels

Hereby suggested the processing method of turbine blades, given descriptions of the instrument, adjustments for installation, cutting and settings of the abrasive wheel. Introduced the mathematical model of the cutting surface of the wheel. Hereby developed a technological processing, and produced experimental samples.

Keywords: turbine blades production, ceramic, silicon nitride, mechanical processing technology, adamant polishing, torus-shaped abrasive instrument.

Belyakov V. N., PluzKnikov A. A., Nikulenko O. V., Shvetsov I. V. Formation of gas in the area of obprocessing of metals

Quality monitoring in a combination to electronic measuring devices allows to solve an extensive circle of problems by definition of structure and properties of the gas environment. In work the technique of control of temperature fields in the air-gas environment near to sources of thermal radiation for the purpose of definition of optimum expenses of various energy sources and prevention of overheats of boiler installations or separate units is presented. The given way allows to carry out continuous control over thermal processes. The way of contact-less definition of temperature shows that as the information environment use the gases which measurement of concentration allows to define temperature of the air-gas environment.

Keywords: the device, the device, the air-gas environment, temperature.

Metal Forming

Kulik G. N. About the defective area of the ingot and its location in the body of the blank

The main provisions of the behavior of the central zone of the ingot at different deformation patterns. Recommendations for forging ingot in combined smartly and calculation algorithm compressions to reduce withdrawal axis of the work piece proved the importance of the location of the defective area on the axis of the work piece.

Keywords: bar, axial zone, combined strikers, manipulation, rolling, temperature field, tube, shaft.

New Materials And Production

Maksarov V. V. Simulation of the process of chip-based rheological properties of metals

The paper discusses the modeling of chip formation in cutting process. The analysis of complex rheological models, which allowed us to make assumptions and rationale in the formation of hypotheses the process of chip formation. Studies have shown that most fully reflects the process of chip formation with regard to plastic deformation and fracture of metal in the local area rheological model in the form of a serial connection pro-grammatically relaxing environment Ischlinski (reflecting the initial deformation of the metal cutting layer) and environment Feuchte with two elastic-dissipative elements (reflecting the deformation and friction descending chips). The obtained complex rheological model that was the basis for the construction of an adequate dynamic model of the process of chip formation.

Keywords: metal cutting, modeling, chip making, rheological models, metal deformation

Zotov A. V., Drachev O. I., Rastorguev D. A., Svyatkin A. V., Klimov V. S., Merson E. D. Evaluation of deformation processes in the processing by wire tool

In this paper, based on the analysis of deformation processes, a model of distribution prints wire lint on the surface of the work piece is proposed. The geometric parameters of the shape of the residual impressions formed by the treatment of gray cast iron products are defined. The examples of probabilistic assessment of degrees of coverage and uniformity of the hardened layer by varying the processing' conditions used technology. The criterion of the maximum number of strokes pile based on the energy characteristics of the material being processed.

Keywords: cladding, wire tool, mathematical expectation, distribution density.

Leontev L. В., Shapkin N. P., Leontev A. L., Makarov V. N. Features of formation of wear resistant cermet coating on the friction surfaces of steel parts

The effect of modifying the steel 40X vermiculite and its composites on tribological characteristics of friction pair «steel 40X — friction-ny material,» a comparison of rates of wear tracks with vermiculite in litetrafto-retilenom (PTFE), vermiculite, followed by modification of PTFE, and vermiculite, modified chitosan polifenilsi-loksanom and vermikulit-molded treated with hydrochloric acid. We investigated the wear rate of steel in three stages: first — the application of tribological composition on the friction surface (3 min). The second — the formation of the covering-ment (60 min), the third — triboispytaniya (180 min). In addition, a comparison was made of PTFE with vermiculite modified PTFE. It is shown that the introduction of PPS on the surface of the vermiculite leads to a sharp drop in the rate of wear on the second and third stages. The analysis of the oil in the stages of formation of the coating and in the process triboispyta-ny. We investigated the mechanical and topographical characteristics of the films on the top-of friction. The best results were obtained for coatings after treatment tribo-technical composition containing polifenilsiloksanom.

Keywords: modification, the friction pair, tribotechnical composition tribotehnical characteristics.

The Organization And Production Control

Feofanov A. N., Turanin M. V. Recent approaches to supplier risk management

Minimization of losses at all stages of the product life cycle in terms of non-price competition and a changing market has become a requirement for receiving steadily grows profit and maintain position in the market for manufacturers of products and services. One way to minimize losses is to apply the principles of risk management when choosing a supplier. This article provides a brief overview of the principle of working with supplier based on modern trends in risk management. Considered the method of multicriteria evaluation and method of supplier development.

Keywords: risk, management, criterion, supplier, standard, development, methods of analysis, evaluation.