Vol 7, No 2-2 (2013)


Piston Rings

Okolovich G.A., Okolovich A.G.


The article describes the development of technology for the manufacture of steel piston rings by cold plastic deformation during drawing. It defines conditions of thermal treatment at recrystallisation tempering, thermofixation and thermostabilization. The paper also considers the calculation of degree of plastic deformation at drawing and the foundation of a choice of tool steels. It reflects research in the field of thermochemical treatment methods of drawing rolls and piston rings.
Izvestiya MGTU MAMI. 2013;7(2-2):8-13
pages 8-13 views

Research of the influence of the wall thickness variation of blanks punched by drawing with parts thinning on the uneven distribution of mechanical properties in the cross-sections

Ageev N.P., Zateruha E.V.


This article describes the impact of the wall thickness variation on the formation of the mechanical properties in the cross sections of parts punched by drawing with thinning details. It offers a model of wall thickness variation forming in the multi-operational drawing with thinning processes that considers the influence of the geometry of the working tool and the accumulated strain.
Izvestiya MGTU MAMI. 2013;7(2-2):13-17
pages 13-17 views

Stamps for radial extrusion parts with the inner flange of the tubular blank

Alieva L.I., Martynov S.V.


The article considers the design of the die to extrude hollow parts with an internal flange of the tubular blank. The description of the stamp and its design.
Izvestiya MGTU MAMI. 2013;7(2-2):17-19
pages 17-19 views

Resource-saving preparation of the structure and mechanical properties of steel 40X for cold die forging of hardware

Pachurin G.V., Filippov A.A., Chinenkov S.V.


The article contains the technology of the preparation of the level surfacehardening, mechanical characteristics and structure of rolled used for cold die forging, eliminating the costly operations annealing furnaces and mechanical turning of surface defects.
Izvestiya MGTU MAMI. 2013;7(2-2):19-23
pages 19-23 views

Development and research of technological possibilities of manufacturing two-layer spherical plugs of ball valves from billets by crimp method

Ageev N.P., Malyh F.M., Dubickij K.O.


The article considers the relevance of the use of two-layer structures of spherical plugs of ball valves as well as the advantages of technology for their manufacture process-based on stamping over traditional methods. The experimental study showed the technological capability of manufacturing processes by metal forming billets and it also gives recommendations on the correlation of the outer and inner layers of the spherical shell plug ball valve.
Izvestiya MGTU MAMI. 2013;7(2-2):23-27
pages 23-27 views

The technology of precision tubular products using compression on the profile mandrel rolling-drawing non-driven rollers

Rozov J.G.


Manufacture of long hollow parts specified internal profile of the hard-deformable alloys based on process improvement of cold deformation of a tubular workpiece requires the development of science-based modes of technology to assure the quality of products, reduction of the complexity of manufacturing, steel intensity etc. Stress-strain state and energy-power parameters of the rolling-drawing process non-driven roller tubular billet on the profile mandrel is define by computer analysis that have been made. The shape and dimensions of mandrel corresponded to the inner surface of the rifle barrel with the polygon profile type. As a result, it has been developed and manufactured the corresponding technological device and has been manufactured the product by above method.
Izvestiya MGTU MAMI. 2013;7(2-2):28-32
pages 28-32 views

Cold extrusion with differentiated counter-pressure of die cavities

Kaljuzhnyj V.L., Pimanov V.V.


The article describes the engineering method to obtain the correlation for the determination of stresses on the contact surfaces of the workpiece and the tool, the efforts of the extrusion of cavities by spherical die. It shows numerical simulations made ​​on computer simulation by the finite element method on examples of extrusion by spherical die of billets made of R6M5 (Р6М5) steel under the action of counter-pressure on the free surface of the workpiece. The paper contains the definition of the maximum counter-pressure through simulation that provides extrusion without destruction and the efforts of the processes, the distribution of stresses in the deforming tool and the stress-strain state, the degree of resource use of metal plasticity, as well as the final product dimensions. The article contains a description of the experiment on the extrusion billets of steel R6M5 (Р6М5) spherical die.
Izvestiya MGTU MAMI. 2013;7(2-2):32-37
pages 32-37 views

Technology of upsetting process for parts with rectangular head and spherical radius

Glazunov D.A., Kalpin J.G., Molodov A.V., Filippov J.K.


The article describes the research of upsetting process for parts with a rectangular head. It describes the modeling of a combined upsetting process for bolts with rectangular head. The FEM system Q-Form is used for 3D modeling. The paper contains the original data and simulation results.
Izvestiya MGTU MAMI. 2013;7(2-2):37-41
pages 37-41 views

The process of obtaining a roll-formed sections with a predetermined longitudinal curvature through control the characteristics of plastic hinge in the deformation zone

Markovcev V.A., Markovceva V.V.


The article describes the processes of formation of roll-formed sections with a predetermined longitudinal curvature. It contains a research of the theoretical foundations of a plastic hingeformation in the deformation zone and the management of its properties.
Izvestiya MGTU MAMI. 2013;7(2-2):41-45
pages 41-45 views

Development of technological schemes of slip-rings made ​​of beryllium bronze with methods of sheet stamping

Sidel'nikov S.B., Ber V.I., Orelkina T.A., Vagner A.V., Korobkin A.N.


The article consists of research results that shows the way how to produce slip-rings made ​​of beryllium bronze with the use of sheet stamping and heat treatment. It shows the properties of the elongated semi-finished parts and their structure at various stages of the proposed scheme.
Izvestiya MGTU MAMI. 2013;7(2-2):45-48
pages 45-48 views

System management of the design process separating stamps for cold stamping

Pochekuev E.N., Shenberger P.N.


The paper considers the system control process over design process of successive separating stamps for cold sheet stamping. It shows structural and logical formulas that reflect the possible design options of these stamps with the proposed character of parts and components. This article also describes the correspondences between the elements of the subsets of a separating stamp to describe the parametric object structure, using methods of discrete mathematics.
Izvestiya MGTU MAMI. 2013;7(2-2):48-52
pages 48-52 views

The quality of products improving for flanging of circular holes in sheet metal blanks and profiles

Kaljuzhnyj V.L.


This article describes a method flanging round holes in sheet blanks and profiles which consists of the steps of forming holes cold extrusion to produce a profiled workpiece, punching coffers and flanging.The product after the flanging has a constant wall thickness and a smooth cylindrical surface.The article contains an engineering method to determine the dependence for determining forces of flanging profiled billet spherical punch and the size of the source profile. It shows flanging holes processing profiled billet and flanging with thinning which was carried out by finite element method and it also shows the comparison of results of two methods.
Izvestiya MGTU MAMI. 2013;7(2-2):52-58
pages 52-58 views

Deformation determination of the layers in the axisymmetric forming a two-layer billet

Tipalin S.A., Shpun'kin N.F., Kosachev N.V.


The paper describes the experimental study of an axisymmetric two-layer workpiece forming with viscoelastic bonding layer. It shows the distribution of thinning of layers in radial the direction is received. It is revealed that the distribution pattern of thinning of the outer and inner layers of the cross section of the billet significantly differ.
Izvestiya MGTU MAMI. 2013;7(2-2):58-62
pages 58-62 views

Remedy defects in the production of thin sheet profile at multi-roll forming bands

Kolesov A.V., Kiselev D.O.


The article considers the analysis of defects in the production of thin sections on multi-roll pilot production roll forming machine. This paper also describes an experimental selection of possible ways to eliminate defects.
Izvestiya MGTU MAMI. 2013;7(2-2):62-64
pages 62-64 views

Selection of the method for samples preparation for determination of properties of bimetal layers

Shumev A.V., Draganyuk V.D.


The article considers the ways to prepare samples with chemical removal of the zinc layer. This describes an indirect method of determining material properties of the thin layer in a multilayer metal.
Izvestiya MGTU MAMI. 2013;7(2-2):64-67
pages 64-67 views

Visco-plastic forming of hemispherical shells by gas

Sobolev J.A., Petuhov I.S.


The article shows the calculated dependences and the results of experimental work on gas shaping of spherical shells of tanks.
Izvestiya MGTU MAMI. 2013;7(2-2):67-71
pages 67-71 views

The expansion of technological capabilities and advantages of convex inserts pre-forming in a hot die forging process of forged plates

Kuhar' V.V., Nikolenko R.S., Suglobov R.V.


This paper reflects the comparative studies based on modeling of technological forging processes of part type "movable plate" in the industrial technology base used by CJSC "Azovelectrostal" (Mariupol, Ukraine) and the new technology proposed by the results of preliminary research and developed recommendations.
Izvestiya MGTU MAMI. 2013;7(2-2):71-76
pages 71-76 views

Design a tool for hot rolled workpiece

Karpajtis E.P., Zolotuhin P.I., Volodin I.M.


The article considers the methodology of designing groove of sectors-die-rolling workpiece in the oval and round gauges. The result of analyzing the experimental data obtained by the regression equation allows to consider the rolls springing and the irregularity in widening of workpiece in die groove design
Izvestiya MGTU MAMI. 2013;7(2-2):76-79
pages 76-79 views

Development of technology for the manufacture of forgings with spikes on the basis of piecemeal stamping

Malikov S.A., Volodin I.M.


The article discusses the new technology forging forgings with spikes on the universal crank hot press.
Izvestiya MGTU MAMI. 2013;7(2-2):80-84
pages 80-84 views

Thermal barrier coatings for precision stamping heat-resistant steels

Petrov A.N., Soljakov A.P.


The article contains the study of the properties of thermal barrier coatings applied to the precision forging of compressor blades from high-temperature steels EP-866 (ЭП-866).Under production conditions was studied the influence of changes in the composition of thermal barrier coatings. The article presents the stamping results of compressor blades using thermal barrier coatings and die lubricants on colloidal-graphite-based.
Izvestiya MGTU MAMI. 2013;7(2-2):85-88
pages 85-88 views

Low - and non-waste technology of stamping ring forgings

Shibakov R.V.


The article considers the ways of low- and non-waste manufacture of ring forgings plastic deformation managed cross-extrusion.
Izvestiya MGTU MAMI. 2013;7(2-2):89-92
pages 89-92 views

Theoretical and experimental research of forging operation in split dies

Jakovlev S.S., Pasynkov A.A.


This article describes a new mathematical model of stamping products in split die on the universal hydro-pressure equipment from high-strength materials. It describes the calculations of materials pressure in split die stamping of cross billet that is made from aluminium Amg6 (АМг6) and titanium ВТ6С alloys. The work contains the comparison of the experimental research results with theoretical data.
Izvestiya MGTU MAMI. 2013;7(2-2):92-96
pages 92-96 views

Advancing the short workpieces without the formation of a defect clip

Aliev I.S., Kal'chenko P.P., Shvec A.A., Zhbankov J.G., Tagan L.V.


Bulky components of crucial purpose such as shafts and rotors take an important place in heavy engineering industry. The basic method of their production is forging by drawing.
Izvestiya MGTU MAMI. 2013;7(2-2):96-100
pages 96-100 views

Effect of thermomechanical processing schedule on microstructure and mechanical properties of ultra high strength steel forgings

Skubisz P., Sinczak J., Packo M., Mordalska K., Lisiecki L.


The paper presents results of determination and industrial verification of cooling cycles in thermomechanical processing (TMP) of steel AISI 4130, designed to produce good combination of strength and ductility directly after forging and quenching. The results indicate possibility of replacement costly high alloy steels with common grades offering higher strength in combination with good plasticity after cost-effective TMP cycles utilizing blast-air cooling from controlled forge end temperature.
Izvestiya MGTU MAMI. 2013;7(2-2):101-105
pages 101-105 views

The relationship of elastic deformations of four-high system during formation of a profile and flatness of rolled strips

Belsky M.M., Mukhin Y.A.


This article describes the mathematical model of stripe deformation at steel sheet rolling in four-high stand. The authors presented a methodology for quantifying the effect of self-leveling lengthening across the width of the strip.
Izvestiya MGTU MAMI. 2013;7(2-2):105-110
pages 105-110 views

The mathematical model for calculating the thickness distribution of the metal in stamping in multisection dies with rotating discs

Korobko T.B., Kozachishena E.S.


In this article the authors have proposed a mathematical model to calculate the thickness distribution of the product when drawing of axisymmetric parts in the stamp with multisection rotating discs for correction of technological parameters of the process. The model considers the mechanism of stress-deformed state, geometrical relations and approximation algorithm. Euler's method was used to solve the problem allowing determine the parameters of the next step of integration, basing in the previous results. This algorithm allows to make quick adjustments with the appearance of additional conditions and can be recommended for the calculation of the technological parameters of the technological process.
Izvestiya MGTU MAMI. 2013;7(2-2):110-115
pages 110-115 views

Analysis of stress and strain state in the elementary volume at the example of the upseting process

Mamaev V.B.


The paper contains general positions and the results of the analysis of the stress state in the elementary volume, as well as the impact of such technological parameters as a factor of frictional coefficient and value of the relative deformation on the results of the upset process.
Izvestiya MGTU MAMI. 2013;7(2-2):115-120
pages 115-120 views

Modeling the evolution of the deformation zone under various extrusion schemes

Rjabicheva L.A., Usatjuk D.A.


Using the simulation results it was shown an optimal correlation of the size and porosity of powder compacts and also the amount of counterpressure recommended for the production of equal channel angular extrusion of workpieces with high-density of deformation zone that is large enough for subsequent direct extrusion powder of parts with high mechanical properties.The article defines the maximum depth of the cavity in direct extrusion through the research of plasticity resource. This paper describes the developed technology of manufacturing high-density parts of the "glass" type with the consistent application of the equalchannel angular and direct extrusion.
Izvestiya MGTU MAMI. 2013;7(2-2):120-124
pages 120-124 views

Criterion of damage for the design of metal forming processes

Trofimov V.N., Kuznecova T.V.


In the design of metal forming processes it is widely used to obtain a linear model of damage accumulation and scalar failure criterion. The process of plastic deformation can be described by the kinetic equation of nonlinear dynamics for systems with a strong positive correlation. This paper considers the failure criterion and condition of deformation without destroying in multi-step process of plastic deformation. Check of applicability of criterion showed that it can be used for solving practical problems of processing of metal forming processes.
Izvestiya MGTU MAMI. 2013;7(2-2):124-128
pages 124-128 views

Determination of the stress-strain state of plastically deformed object with regard to the processes semi-hot die forging

Pyzhov V.V.


The article describes alternative methods of solving the boundary value problem of determining the stress-strain state of the visco-plasticdeformable body in relation to the processes of semi-hot die forging processes using the theory of heredity, which establishes the relationship between stress and strain considering the speed and the history of the loading process.
Izvestiya MGTU MAMI. 2013;7(2-2):128-133
pages 128-133 views

Analysis of calculation methods of springback of sheet materials

Saprykin B.J.


The article contains a review of the scientific literature on the springback issue. This review describes the work on the analysis and theoretical argumentation for springback. It shows the classical methods of springback calculation that are used in its forecasting. This paper consist of modern research about the springback issue, mathematical analysis, experimental research (springback of the laminated materials).
Izvestiya MGTU MAMI. 2013;7(2-2):133-139
pages 133-139 views

Theoretical and technological aspects of tube billets pinching

Sosenushkin E.N., Janovskaja E.A., Hachatrjan D.V., Kinderov V.J.


This article considers the stress-strain state of the billets under pinching of tapered die on the basis of the mathematical model. Basic relations obtained in the theoretical analysis can assess stress in the deformation zone and to determine the strain field and calculate the length of the original tube billets.
Izvestiya MGTU MAMI. 2013;7(2-2):139-145
pages 139-145 views

Transverse stability of different-walled billets under pinching in stepped tapered dies

Matafonov S.S.


The article considers an influence of thickness variation on the stability of tube billets at pinching in stepped tapered dies. It describes the corresponding mathematical model that allows to predict the loss of billets stability at pinching in the design stage of the technological process.
Izvestiya MGTU MAMI. 2013;7(2-2):145-149
pages 145-149 views

Phenomenological approach to the determination of the stress state of the indicator chart for plasticity

Grushko A.V.


We propose a parameter state of stress as the sum of the principal stresses relative to the odds of their influence. Influence coefficients are mechanically-mi material properties. Plasticity chart with this indicator is proposed to approximate the exponential function. Checking for different materials showed sufficient proximity of the experimental points to a diagram of plasticity. Recommendations are given for determining the coefficients of arbitrary types of tests. The minimum number of tests - 4.
Izvestiya MGTU MAMI. 2013;7(2-2):149-153
pages 149-153 views

Assessment of the accuracy results of the numerical simulation in problems of forming shells of sheet metal

Mihajlova V.L., Petrov V.K., Suhomlinov L.G.


This article describes the results of the application of an axisymmetric rigid-plastic finite element membrane model to the research of the process of forming by a spherical die and process of hydraulic bulging into a flat bottomed die. The results of numerical simulations are compared with experimental data.
Izvestiya MGTU MAMI. 2013;7(2-2):154-158
pages 154-158 views

Ultimate capabilities of rotary drawing process of axially symmetric parts made from anisotropic materials

Jakovlev S.S., Tregubov V.I., Osipova E.V.


The article shows the influence of process parameters on the ultimate capabilities of forming that depends on different destruction criteria of rotary drawing process with wall thinning made from anisotropic material.
Izvestiya MGTU MAMI. 2013;7(2-2):158-163
pages 158-163 views

Theoretical analysis of the combined radial-reverse extrusion parts with flange

Alieva L.I., Grudkina N.S.


This article describes the mathematical model of the process combined radial-reverse part extrusion type of glass with a flange for identifying energy-power parameters of the process and explore the gradual and the final forming of the billet. It shows a comparative analysis of the phase-forming patterns based on the proposed computational scheme, finite element modeling and experimental data.
Izvestiya MGTU MAMI. 2013;7(2-2):163-171
pages 163-171 views

Theoretical research of upsetting process for parts with a rectangular head

Kalpin J.G., Filippov J.K., Glazunov D.A.


The article describes the research of parts upsetting process with a rectangular head. It shows a scheme of calculation by power balance method for the upsetting rectangular bolts head.
Izvestiya MGTU MAMI. 2013;7(2-2):172-175
pages 172-175 views

Stress determination in sheet metal layers when editing pressure

Rjabov V.A.


The article describes the determination of the stresses in the sheet metal flattening by pressure.
Izvestiya MGTU MAMI. 2013;7(2-2):175-178
pages 175-178 views

Simulation of mechanical tests aimed to investigate the flow stress during the abrupt change of the strain rate

Potapenko K.E., Voronkov V.I., Petrov P.A.


This article describes a modeling procedure of material’s mechanical test during the abrupt change of the strain rate. Simulation results were compared with the data obtained experimentally. The numerical simulation was performed in the FE-program QFORM. The paper describes the selection of areas for further research related to the definition of mathematical models of deformation resistance, and it also contains the software requirements for the simulation of mechanical tests.
Izvestiya MGTU MAMI. 2013;7(2-2):178-183
pages 178-183 views

Horizontal counterblow hammer with hydraulic mass connection

Kobelev A.G., Chashkin D.S.


This article describes the design of the horizontal counterblow hammer and principle of its operation. The purpose of its development is to improve the timing accuracy of oncoming traffic impact of the masses. The result is the development of new design that combines hydraulic synchronization mechanism and a horizontal layout of the hammer
Izvestiya MGTU MAMI. 2013;7(2-2):183-187
pages 183-187 views

Research of the accumulation of damage in the parts of the press-forging equipment and tools by magnetic methods

Kornilova A.V., Idarmachev I.M.


The article considers abilities of magnetic methods of non-destructive testing (in particular, measurement of coercive field) for determination of damaging and remaining life of dies material and equipment. This article describes the experimental determination of principles for the instrument used for hot (bulk) and cold (sheet and volumetric) forging.
Izvestiya MGTU MAMI. 2013;7(2-2):187-191
pages 187-191 views

Experimental research of impact at upsetting on hammers in hot deformation

Lavrinenko V.J., Semenov E.I., Feofanova A.E.


The paper considers the results of experimental and theoretical research of the impact at upsetting blanks on hammers in hot deformation, showing the possibility of increasing the contact time of the hammer head with a workpiece, increasing the degree of deformation of the workpiece, reducing the strength of deformation in upsetting and increase efficiency in the use of blow of hammer head with a filler and confirming the earlier data on upsetting lead blanks.
Izvestiya MGTU MAMI. 2013;7(2-2):191-194
pages 191-194 views

Designing of tools for finding the yield stress of materials by thermography method

Kosachev N.V., Petrov P.A., Prokopov F.B., Voronkov V.I.


The article describes the implementation of thermographic method for determining the yield stress, as applied to three-dimensional models with the use of specialized mountings.
Izvestiya MGTU MAMI. 2013;7(2-2):194-198
pages 194-198 views

Springing of a multilayered material

Tipalin S.A., Saprykin B.Y.


The paper describes the research of springing of a multilayered material. It shows the comparison of springing of a single-layer and multilayered sample. The article considers the change character of springing that depends on a bend angle and internal radius.
Izvestiya MGTU MAMI. 2013;7(2-2):198-202
pages 198-202 views

Effect of the number of tag billets on the final part temperature

Hamidulina A.A.


The article describes the technology of deep cold die forging of parts which are made from low-alloy steel 20 and also the methodology of the experiment, revealed the effect of the number of stamped billets on the final temperature of the part
Izvestiya MGTU MAMI. 2013;7(2-2):202-205
pages 202-205 views

Experimental research on the plastic upsetting between fixed walls of thin strips in the form of a rectangle and sector

Kadymov V.A., Sosenushkin E.N., Belov N.A.


This paper describes experiments and analysis on the upsetting between approaching rigid plates of a thin plastic sample, limited fixed walls and originally shaped rectangle or sector. Fixed wall located along the long rectangle sides and along the radial sector boundaries. It describes the definition of experimental laws, which allows to choose the corresponding mathematical model.
Izvestiya MGTU MAMI. 2013;7(2-2):206-212
pages 206-212 views

Calculation based on capacity of the crank hot-stamping presses for technological processes of thermomechanical treatment

Radkevich M.M., Fomin D.J.


This article describes the calculation of the force stamping elongated forging at different temperatures in the open die by the M.V.Storozhev’s formula and compares the effort with stamping identical forgings as a result of the finite-element modeling. Options regarding corrections formulas are offered.
Izvestiya MGTU MAMI. 2013;7(2-2):212-216
pages 212-216 views

Development of CAD subsystem manufacturing processes of jewelry

Sidel'nikov S.B., Dovzhenko N.N., Gajlis J.D., Lebedeva O.S.


The article contains elaborate algorithms and techniques of the design process sheet, flat-and-edge rolling and drawing of long semi-finished products for the production of jewelry made of precious metals and their alloys. This paper describes the developed software, which allows one to calculate deformation modes and energy-power parameters of the designed processes with the visualization of the data in tabular and graphical form.It also describes the process of adaptation of the developed CAD systems for production conditions jewelry chains of gold 585 at JSC "The Gulidov Krasnoyarsk Non-Ferrous Metals Plant".
Izvestiya MGTU MAMI. 2013;7(2-2):216-220
pages 216-220 views

Analysis of technological process of forging broaches with the simulation in DEFORM-3D

Taupek I.M., Alekseev P.L.


The article describes simulation of the existing technological process of step forging that is used at JSC “Metallurgical Plant “Electrostal” for production a round profile by using the finite element method.
Izvestiya MGTU MAMI. 2013;7(2-2):220-224
pages 220-224 views

Modeling combined extrusion process to assess the limit of forming blanks from different materials

Ogorodnikov V.A., Dereven'ko I.A.


This article considers a method of modeling combined extrusion process based on the hypothesis of force and kinematic similarity of deformation parameters. It also shows the expediency calculation of plasticity resource in the combined extrusion through failure criterion that takes into account the influence of the third invariant of the stress tensor on the plasticity of blanks deformed under three dimensional stress state.
Izvestiya MGTU MAMI. 2013;7(2-2):224-229
pages 224-229 views

Application of the RP-technology for manufacturing of compact mountings in a small-series casting production

Leushin I.O., Reshetov V.A., Romanov A.D., Bol'shakov A.A.


Nowadays an actual problem in a foundry is the problem of resistance of foundry equipment. RP-modern technology can be used instead of technologies that are used now. Technology layering of ABS plastic is used to build a solid model mountings. The choice of this plastic as a material for foundry mountings showed a significant excess of its operating life of the foundry mountings which are made ​​of wood.
Izvestiya MGTU MAMI. 2013;7(2-2):229-232
pages 229-232 views

Design of prototype devices for producing metal microspheres and shells

Petrov M.A., Kosachev N.V., Petrov P.A., Shejpak A.A., Bast J.L.


Rapid prototyping technology implemented quite actively for all types and types of production. Its application reduces the influence of human factor on quality of a product but it also require the operator that knows this field and have some skills of handling machine. These technologies are also used to create models and visual functional prototypes, which can recreate the developed process and test the individual steps to prove its efficiency. The laboratory equipment that was made in Freiberg University of Mining and Technology allows to produce metal microspheres and shell (0,5 – 3 mm). Modernization of this equipment was proposed by creating a prototype of a mechatronic system that would show the requirements to the device and its capabilities. Creation of a device prototype is a transitional point from a laboratory layout to production equipment that works with high performance and repeatability. The device can operate under vacuum and inert gas that allows to work not only with model materials such as tin, zinc, alloy rose eutectic alloys based on bismuth and tin but also with structural materials, such as aluminum, magnesium and their alloys. Individual parts of the functional prototype was created by rapid prototyping technology (MJM, FDM and milling) of the polymers.
Izvestiya MGTU MAMI. 2013;7(2-2):233-237
pages 233-237 views

Method of formation and selection of the optimal configuration of forming system for multi-coordinate processing

Lukina S.V., Ivannikov S.N., Manaenkov I.V.


The article describes methods of formation and selection of optimal configurations of forming systems of multi-axis machines, based on the aggregate of graph models, analytical representations and objective functions.
Izvestiya MGTU MAMI. 2013;7(2-2):237-242
pages 237-242 views

Strong interaction between the workpiece with abrasive wheels of double side grinding

Balashov V.N., Judaev S.N., Gnevashev A.A.


This article describes how two-sided grinding in mobile centers. The description of the force interaction of abrasive wheels with the workpiece. The possibility of reducing the elastic strain in bilateral grinding through setting up the machine.
Izvestiya MGTU MAMI. 2013;7(2-2):242-244
pages 242-244 views

The calculation of volumetric accuracy

Maksimov J.V., Krylov O.V., Kuz'minskij D.L.


It is hard to imagine the modern mechanical engineering without information technologies, machines are strong representatives of symbiosis of mechanics and electronics. Despite of the abundance of software products for calculations decisions often do not coincide with real challenges. New mathematics to determine the effect of vibration on the cutting process do not allows to solve all problems.
Izvestiya MGTU MAMI. 2013;7(2-2):245-248
pages 245-248 views

Modern technologies tendencies in development of flow-skiving

Kalashnikov A.S., Morgunov J.A., Kalashnikov P.A.


The article considers the kinematics of the flow-skiving, used cutting tools and cutting parameters. It shows the construction of the cutting tool: an integrated and modular with plug of carbide bar blade. The paper includes a design features for flow-skiving machine.
Izvestiya MGTU MAMI. 2013;7(2-2):248-250
pages 248-250 views

Electrochemical finishing of airfoil blade wheels

Loboda A.A., Mozgov S.A., Saushkin B.P.


The article describes the change in the basic manufacture technology of the blades closed blade wheels through the use of finishing operations to remove the defective layer and to reduce the surfaces roughness of the blades after electroerosive firmware operation. The efficiency of the new operation instead of the original is based on a manual finishing of blade profile was confirmed by experimental studies. The article describes the experiments on the selection of the optimum parameters of the processing and selection of the optimal electrolyte. It also shows the effect of various parameters of the processing mode on the surface microgeometry formation during processing.
Izvestiya MGTU MAMI. 2013;7(2-2):251-257
pages 251-257 views

Technology development of hardening of the surfaces of friction pairs of physical-chemical method

Shandrov B.V., Filippov V.V., Homjakova N.V., Volkov S.M.


The article deals with the selection of the composition of the electrolyte and the appointment of a new control parameters for micro-arc oxidation hardening of cylindrical outer surfaces of the parts of an aluminum alloy.
Izvestiya MGTU MAMI. 2013;7(2-2):257-262
pages 257-262 views

The influence of cutting modes and structural parameters of the device for combined cutting processing and surface plastic deformation on the roughness of the processed surface unstable parts of hollow cylinder type

Vetrova E.A., Lebedev P.A., Adeev A.S.


Cutting modes and structural parameters of the device for combined cutting processing and surface plastic deformation have a significant impact on the roughness of the processed surface unstable parts type hollow cylinder.
Izvestiya MGTU MAMI. 2013;7(2-2):262-267
pages 262-267 views

Obtaining of optimum parameters and modes for ultrasonic diamond milling of glass-ceramic

Perepechkin A.A., Demidov D.V., Opal'nickij A.I., Petrov K.V.


The article contains analysis of modern materials and prospects of its application. It considers two variants of ultrasonic milling of various tools. This article describes the effect of volumetric measuring, tool diameter on the roughness and the spherical radius in ultrasonic cutting of glass-ceramic. It contains the diagram of tool degradation depending on punched holes. The work contains selection of the most suitable parameters of the regime to achieve the accuracy and quality of processing.
Izvestiya MGTU MAMI. 2013;7(2-2):267-273
pages 267-273 views

Simulation of control systems by engineering manufacture

Popov A.P.


The article considers the system design of the integrated industrial control system of engineering manufacture. It shows that the establishment of Information Industrial control system is connected with the need to decompose the system control on a number of relatively independent subsystems of less complexity and with the requirement of ensuring the coordinated functioning.
Izvestiya MGTU MAMI. 2013;7(2-2):273-275
pages 273-275 views

Cutting quality and accuracy parameters of billet at the cutting process in the dies by rotary tool

Kokorin V.N., Filimonov V.I., Zemskova A.N.


Article considers the most common types of cutting of roll-formed profiles, cutting dies and cutting metal using slitting saw. It describes executed experience and the influence of cuts type on the quality. The paper shows the advantages and disadvantages of cutting methods and also gives general recommendations.
Izvestiya MGTU MAMI. 2013;7(2-2):276-278
pages 276-278 views

Development and application of high technologies in aircraft production

Shandrov B.V., Morgunov J.A., Saushkin B.P.


This article describes the prospects of the use of physical and chemical and vacuum technologies in the manufacture of rocket products and space technology. It is shown that these methods provide technical requirements for the processing of products that made from modern and advanced heat-resistant and corrosion-resistant materials. The paper contains examples and justification of the effective use of such a technology for solving problems of rocket and space engineering.
Izvestiya MGTU MAMI. 2013;7(2-2):278-283
pages 278-283 views

Influence of processing factors on the structure and properties of carbon steel powder obtained by sintering and hardening of electropulse nanoparticles

Panov V.S., Skorikov R.A., Eremeeva Z.V., Nitkin N.M., Sharipzjanova G.H., Zherdickaja N.N., Ivanov S.A.


In the article the study of the effect of temperature electropulse sintering of powder on the properties of steel. The optimal conditions for obtaining medium-carbon steels, cold brittleness threshold is defined, which allows to judge about the possibility of powder steel for use with impact loads at low temperatures.
Izvestiya MGTU MAMI. 2013;7(2-2):283-290
pages 283-290 views

Modernization of microinterferometer MII-4

Bavykin O.B., Vjacheslavova O.F.


The article offers upgrading of microinterferometer MII-4 with the aim of bringing its capacity to modern analogues based on the analysis of advantages and disadvantages. The upgrade of the device will allow to receive digital images of the surface and keep them for further processing on a computer with the calculation of the fractal dimension.
Izvestiya MGTU MAMI. 2013;7(2-2):290-293
pages 290-293 views

Influence of phase composition on the electro-thermal-physical properties of powder tungsten alloys for high-load electric contacts

Arzamasov V.B., Antipenko V.S., Stroev A.A., Galkin K.V.


The article contains the results of studies of the electrical resistivity (ρ), thermal conductivity (λ), the Lorentz number (L) and electron work function (φ) of tungsten alloyed with, YB 6, (ВИб15) La 2O 3,(ВЛ15) Y 2O 3,(ВЛ5,ВИ15) Y 2O 3+ НfO 2 (Vigm) in a wide temperature range.
Izvestiya MGTU MAMI. 2013;7(2-2):293-295
pages 293-295 views

The application of geometric programming for solving various technical and economic problems

Birjukova E.A., Martishkin V.V., Fazlulin J.M., Knyazkov V.V.


This article describes the solution of two technical and economic problems by methods of geometric programming. It is shown that due to their relative simplicity and clarity this method is best for the solution of such specific tasks as the project evaluation and the definition of expediency of obtaining investment on capital costs.
Izvestiya MGTU MAMI. 2013;7(2-2):296-299
pages 296-299 views

The choice of a technique definition of platinoids at the disposal of automotive catalysts

Bobovich B.B., Savko A.P.


The article describes the analysis of existing physical and chemical methods for the quantitative determination of chemical elements. There is shown the use of analytical methods to control the concentration of platinum group metals in the products of utilization of automobile catalysts. The atomic spectral analysis and x-ray fluorescence analysis should be used to determine the content of platinum group metals in various stages of enrichment of scrap used automobile catalysts.
Izvestiya MGTU MAMI. 2013;7(2-2):299-304
pages 299-304 views

The Hypothesis about the calculation of cutting forces accuracy. Cutting parameters. Designing of mathematical model

Volkov A.V., Matveev S.V.


The article shows the evaluation of the capabilities of the a priori definition of calculation accuracy of the cutting force in case of significant growth accounted number of cutting parameters. It contains a designed hypothetical mathematical model of a preliminary assessment of the calculation of cutting forces accuracy in machining structural steels. The paper describes the proposal as a hypothetical model a hyperbolic dependence of cutting force errors on the number of parameters that define the cutting process. It gives recommendations according to the accuracy of the cutting forces, depending on different process parameters and also - for the model developed with the help of a priori estimates of the errors in the calculation of the cutting forces in submodules САD/САМ/САЕ/РDМ systems. Experts in the field of metalworking and developers calculation modules of САD/САМ/САЕ/РDМ systems might be interested in this work.
Izvestiya MGTU MAMI. 2013;7(2-2):304-312
pages 304-312 views

The Hypothesis about the calculation of cutting forces accuracy. Designing of mathematical model

Volkov A.V., Matveev S.V.


The article shows the evaluation of the capabilities of the a priori definition of calculation accuracy of the cutting force in case of significant growth accounted number of cutting parameters. It contains a designed hypothetical mathematical model of a preliminary assessment of the calculation of cutting forces accuracy in machining structural steels. The paper describes the proposal as a hypothetical model a hyperbolic dependence of cutting force errors on the number of parameters that define the cutting process. It gives recommendations according to the accuracy of the cutting forces, depending on different process parameters and also - for the model developed with the help of a priori estimates of the errors in the calculation of the cutting forces in submodules САD/САМ/САЕ/РDМ systems. Experts in the field of metalworking and developers calculation modules of САD/САМ/САЕ/РDМ systems might be interested in this work.
Izvestiya MGTU MAMI. 2013;7(2-2):312-320
pages 312-320 views

Cutting coefficient in turning

Volkov A.V., Matveev S.V.


The article considers an overview of formulas for the simplified determining the cutting forces during turning. It describes the recommendations for their use, as well - to evaluate the accuracy of the cutting forces, including the development of sub-modules for calculating cutting in САD/САМ/САЕ/РDМ - systems. The work can be interesting for experts in the field of metalworking, as well as for developers of the modules calculation of САD/САМ/САЕ/РDМ - systems and for students of the technical high schools.
Izvestiya MGTU MAMI. 2013;7(2-2):320-331
pages 320-331 views

Designing compensators of thermal stress for modern aviation turboshaft engine by powder metallurgy methods

Isaeva E.A., Perevoin S.A., Isaev D.A.


The article shows that for a real implementation in aircraft turoshaft engine of structural ceramic materials it is necessary to use an intermediate element - compensator thermal stress (metal-Compensator-ceramics) in conjunction metal-ceramic. The paper provides reasons of one way to create compensators - by powder metallurgy. It contains a list of the work needed to create compensators.
Izvestiya MGTU MAMI. 2013;7(2-2):331-336
pages 331-336 views

Application of intellectual information technology for the construction of a hypertext system

Koltunov I.I., Kryzhanovskaya T.G., Linnik E.P., Yapparova A.E.


The article considers the possibility of using intellectual information technology to build a hypertext system of a bank.
Izvestiya MGTU MAMI. 2013;7(2-2):336-343
pages 336-343 views

Correlation characteristics of the mechanical metal properties

Lisin A.N., Nabokov I.I.


This paper is one of the attempts to approach the problem of fatigue failure, based on a systematic approach, which lies at the intersection of solid mechanics and physics of strength and plasticity. The paper describes methods for determining the fatigue life of the product, focused on the practical use during the design calculations and debugging studies based on existing theories of strength.
Izvestiya MGTU MAMI. 2013;7(2-2):343-348
pages 343-348 views

Quality management of technical products at the stage of technical projec

Martishkin V.V.


The methods of quality control products at the stage of technical project. At the stage of the technical design of primary importance in improving the quality indicators are standardization and unification. As a result, the preliminary assessment of the likely quality of the products and make appropriate adjustments to the documentation, significantly reduced labor intensity and cost of obtaining the quality of products during their production.
Izvestiya MGTU MAMI. 2013;7(2-2):348-353
pages 348-353 views

Finding the base for the calculation of quality products at the design stage of working documents

Martishkin V.V.


The definition of basic products in development of working documentation is based on geometric representations of quality parts and assemblies. Optimization of technical products is their gradual improvement, where the objective function is to achieve perfect quality (base) articles. The base product is presented as a basic simplex, which fully describes the properties of the base product. In the presence of a basic product is possible at the margin in terms of quality to define engineering - technical measures necessary to improve the quality of parts and the product as a whole.
Izvestiya MGTU MAMI. 2013;7(2-2):354-356
pages 354-356 views

Functional scheme of the automated laser vibration measuring systems with two optical channels converted to monitor and control the parameters of vibration

Matrosova V.V., Murachev E.G.


Mathematical modeling involves the search for optimal solutions. Control of the parameters of objects vibration and structures can extend their service life. The analysis of parameters influence such as channel power ratio m, the angle of non-parallelism β, and the error angle of optical access α to the stabilization coefficient K.
Izvestiya MGTU MAMI. 2013;7(2-2):360-366
pages 360-366 views

The turrets lathes with additional drive of rotation axial tools

Pini B.E., Maksimov Y.V., Lebedev P.A.


Additional rotation tools in the turret lathe is using devices with complex kinematics, so proposed and is considered a simple and reliable construction of axial rotation of the drive tool for turret lathes.
Izvestiya MGTU MAMI. 2013;7(2-2):366-370
pages 366-370 views

New principles of technological support, development and production of complex rocket-technical systems (for example, development of MTX "Energy-Buran")

Isachenko V.A.


The article describes the experience of the application of new technological solutions in the implementation of the program of reusable space transport system "Energia-Buran". The examples of implemented technologies and technological equipment.
Izvestiya MGTU MAMI. 2013;7(2-2):370-373
pages 370-373 views

Quality management of technical products in the development stage of working documents

Martishkin V.V.


The methods of quality control of products under development documentation. At this stage, to identify weaknesses in the design of products used methods of quality control and optimization. The evaluation of the perceived quality of products and subsequent inclusion in the documentation necessary changes greatly reduced the complexity and cost of obtaining quality products at later stages of production.
Izvestiya MGTU MAMI. 2013;7(2-2):373-379
pages 373-379 views

Mathematical model of electric discharge machining and processing management tasks

Ovsyannikov B.L.


Mathematical model of electric discharge machining, accumulating the experienced data throughout the process and allows you to synthesize control methods of the theory of automatic control. The problem of the sustainability of the process of handling the stress.
Izvestiya MGTU MAMI. 2013;7(2-2):379-385
pages 379-385 views

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