Обработка материалов давлением. Сборник научных трудов. №19
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Обработка материалов давлением №1 (19), 2008 401
Milenin A., Kopernik M., Pietrzyk M. Test nanohardness multilayer material rise
biocompatibility model // Materials working by pressure. – 2008. – №1 (19).
In present paper authors focused their interest on nanoindentation test, which is realized for
specimen composed of nanocoatings TiAlN and TiN. Using the theory of small elasto-plastic strains
the mathematical model is formulated. The developed mathematical model and computer program
are able to reproduce the multistage deformation process of the tested material with partial unload
between stages of active deformation.
Sukhorukov S. I. Estimation of the use resource of plasticity in the process of cross
wedge rolling // Materials working by pressure. – 2008. – №1 (19).
The of process of the cross wedge rolling is investigated. The tensely-deformed state in the
shape-changing process is determined. The author gives much attention to the influence of the basic
parameters of instruments namely the angle of slope of lateral, verge α and the angle of sharpening
β on the degree of the plasticity resource wage.
Hvan A. D., Hvan D. V., Bocharov V. B. About the heredity function in the hardening
model of Backhouse // Materials working by pressure. – 2008. – №1 (19).
The teoretical and experimental result of the property of heredity function properties is taken
into consideration. The importance of this characteristics as to the estimation of the stress-strain
state in the .processes at non-monotone weighting of the plastically forming billets.
Ryabicheva L.A., Usatyk D.A., Sklyar A.P. Model fabrication technology high-density
fiber cooper from porous billet // Processing materials by pressure. – 2008 - №1(19).
Modelling and experimental validation of hot extrusion of porous fibrous billet was
conducted. The optimal reduction ratio established to ensure full consolidation of fibers and
superior physico-mechanical properties. It is shown clearly the improvement in quality of details as
the result of implementation of compensator. The dependences for determination of the deforming
force and dimensions of compensator were obtained.
Aliev I. S., Grudkina N. S. The theoretic analysis of the radial backward extrusion
process // Processing materials by pressure. – 2008. – №1 (19).
The theoretic analysis of radial backward extrusion of parts ‘glass with the flange’ by the
energy methods of upper bound with the different kinematics modules is made. The theoretic
dependence of power characteristic from the geometric parameters of process is finding. The
expediency of using of curvilinear element in the design model of the radial backward extrusion is
shown.
Makoveckiy A. V., Makoveckiy A. V. The use of finite-element model for task of
processing metals by pressure // Materials working by pressure. – 2008. – №1 (19).
The decision of some tasks of a metal forming, including transversal effect indentors on a
heated envelope, hot face deposits of an axisymmetric funnel, the finite-element decision of a
problem of a open-die forging with a flash of the modified design in the preliminary die cavity is
offered. The decision for a case of forging П – figurative parts from BТ 20 alloys is executed,
preforms by circular shears blades of wedge with use FFE is considered . The analysis of received
results has been proposed.
Nowak J., Pietrzyk M., Pidvysotskyy V. Effect of friction on metal flow and shape in
orbital forging process // Materials working by pressure. – 2008. – №1 (19).
Orbital forging is a cost-effective an incremental forming process, for manufacturing of the
complicated parts. The present work is a part of a larger project, with the general objective to extent
the capabilities of the orbital forging. Numerical simulation is an important part of this project. This
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project is focused on testing the finite element model of the orbital process. Simulations for various
friction coefficient at the orbital tool-workpiece interface were performed and the results are
compared with the experimental observations.
Ryabicheva L. A., Usatyk D. A., Beloshitskyi N. V. Model hot extrusion of details with
a spherical cavity from powder steel // Materials working by pressure. – 2008. – №1 (19).
The non-uniformity of stress-strain state is detected during extrusion of details with a
spherical cavity leading to the defects formation. It was shown clearly the implementation of porous
billet with a facilitating cavity that ensures decreasing of the non-uniformity of stress-strain state
and elimination of defects. The theoretical results were verified experimentally.
Troshin V. G., Usmanov D. V., Danylenko S. V. Analyze of a power mode of processes
upsetting and cross-section expression // Materials working by pressure. – 2008. – №1 (19).
The results of an experimental research of a power mode of processes of cold volumetric
punching of symmetric samples concerning an axis free upsetting by plane-parallel plates in
comparison with cross-section extrusion of metal in a face ring backlash are stated.
Artunov I. E., Gliznucin V. E., Sokolov I. V. Simulation of technological systems of
sheet stamping by mean of the method of agregate systems // Materials working by pressure. –
2008. – №1 (19).
The ways of simulation of the technological systems of sheet stamping by means of the
aggregate system method is offered. It gives an opportunity to simplify the simulation model
syntheses and take into account both technological and economic parameters of the real system
working.
Vasilyev K. I., Yablonovskaya A. V. Elaborate of the universal model for blank initial
parameters calculating in the process of axle-symmetrical parts drawing // Materials working
by pressure. – 2008. – №1 (19).
Five possible ways of calculating the blank initial diameter in the process of axle-
symmetrical parts drawing from sheet material are analyzed. Three of them are given in details in
reference-books and text-books. Two other methods are elaborated by the authors. It is shown, that
using the elaborated universal parametric model of stamped parts gives an opportunity to determine
the blank diameter without program code.
Yakovlev S. S., Tregubov V. I. Investigation of the power and deformation parameters
of the process of therotary drawing of the anisotropic items // Materials working by
pressure. – 2008. – №1 (19).
The results of theoretical investigations of the power and deformation parameters of the
process of rotary thinning drawing with conical rollers of piped details of the anisotropic materials
are given.
Satonin A. V., Smolyakova V. V., Ivanov A. A. The numerical mathematical modeling
of process relatively light sheets and strips plastic deformation on basis force and energy
methods // Processing materials by pressure. – 2008. – №1 (19).
The mathematical models for calculation of local and integral indices of stress-strain
condition of metal during relatively light sheets and strips rolling are represented. These models are
based on numerical recurrent answers of the finite-difference forms of the static-dynamic balance
clause as well as energy expenses balance clause of the limited elementary volumes. Opportunity
use of the models as a goal functions for solution of multivariable task like simulation technique,
optimization and computer-aided design tasks are showed.
Kuvaev V. N., Chygrin V. A., Ivanov D. A., Politov I. V., Kuvaev Y. G., Shur V. A.
Modelling of the process of cooling of bar coils // Materials working by pressure. – 2008. – №1 (19).
The aim of modelling is analysis temperature distribution inside of air cooling hot bar coil.
The cooling conditions of internal and external surfaces of coil are different. Received the
Обработка материалов давлением №1 (19), 2008 403
temperature distribution in coil’s cross-section between its surfaces - from bottom to top and from
internal to external. Showed the influence of irregular temperature distribution in coil’s cross-
section onto mechanical characteristics along finished rolling bar.
Borovik P. V., Lucenko V. A., Ulyanickiy V. N. Modelling of the tense state of contact
surface in the process of hot shears cutting // Materials working by pressure. – 2008. – №1 (19).
On the basis of engineering approaches the model of the tense state of contact surface in the
process of hot shear cutting is developed. According to the results of numeral realization the
possibility of expansion of the sheet assortiment admitted to cutting due to chagrining the
construction of knife is set.
Satonin A. V., Kulik T. A., Kulik N. A. The mathematical model of the process of cladding
of relative thin bimetallic composites // Processing materials by pressure. – 2008. – №1 (19).
A mathematical model of rolling process of clad metals has been developed The model is
based on a finite-difference method. The model counts quality indexes of a sheet or a stripe and
parameters of process of rolling of bimetallic sheets and stripes. The analysis of the received results
is made.
Satonin А. V., Gavrilchenko О.А., Titarenko А.I., Shestopalov А. V. esearch of
temperature and geometric characteristics influense upon the energy-power parameters
under process of hot leveling implementation of heavy plates // Materials working by
pressure. – 2008. – №1 (19).
The problem of growth of high dimension pipeline transmission capacity and solving this
problem by application of pipes made of high-strength plates is considered. On base of numerically-
analytical model of process leveling of multiple alternating bending calculation of energy-power
parameters of the process and basic quality indicators of complete product is produced. The
experimental setting is created and a diversity of experimental research that confirm in its adequacy
is carried out.
Milenin A., Muskalski Z., Wiewiórowska S. The multi-scale fem simulation and
experimental analysis of the drawing processes of high carbon steel // Materials working by
pressure. – 2008. – №1 (19).
The influence of cementite lamellas orientation on mechanical and technological properties
of wire experimentally shown is during investigation of drawing processes with change direction of
drawing between passes. The purpose of this paper is experimental investigation and mathematical
modeling of cementite and ferrite deformation during drawing processes and receiving an
information about transformation of a pearlitic structure of wire during drawing. The results of the
article will be helpful for a fundamental understanding of pearlitic deformation during development
of high strength steel wires for tire cord applications.
Beskrovnaya O. I., Kovalko V. K., Grybkov E. P. The numerical one-dimensional
mathematical modelling of the intense and deformed condition the integrated center of
deformation at pressing a powder wire // Materials working by pressure. – 2008. – №1 (19).
It the numerical one-dimensional mathematical model, allowing to predict the local
characteristics of the intense and deformed condition of the integrated center of deformation at
pressing a powder wire and consequently to provide the optimal parameters of finished commodity
was developed.
Kasyanuk S. V., Saplin S. Y., Chemeris S. V. Calculation of formerless drawing of pipes
at stationary plug process on the basis of the power approach // Materials working by pressure.
– 2008. – №1 (19).
The design procedure of process of numerical one-dimensional mathematical modelling
stress-deformed condition of metal is presented at formerless drawing of pipes on the basis of the
power approach. On the basis of the offered technique software and the analysis of numerical
realization have been developed. Distributions of normal and normal contact pressure have rather
Обработка материалов давлением №1 (19), 2008 404
complex enough character that confirms expediency of maximum fuller and more correct account
of the whole set of technological and design features of the process.
Levcenko G. V., Ershov S. V., Dyomina E. G., Golovko D. S., Gulak I. V. Influence of
draughting schedule ingot on transform endrite structure of billet // Materials working by
pressure. – 2008. – №1 (19).
The problems of influence of the sort of the deformation modes of the blooming on
penetration of deformation into central layers of the blooms for axes of railway cars are considered.
Using finite-element method influence draughting schedule on penetration of deformation axial area
of bloom are researched. Well-defined and connection clamping size and deformation ratio axial
area of billet are shown.
Suliga M., Muskalski Z., Wiewiórowska S. The influence of trip type heat treatment on
mechanical properties of 0.09C-1.5Mn-0.9Si steel wires // Materials working by pressure. –
2008. – №1 (19).
In the work mechanical properties of low carbon steel wires for the same chemical
composition after hot rolling of rod ferrite-pearlite structure and the trip type structure have been
shown. The application of the trip type heat treatment improved mechanical properties of the drawn
wires.
Petrov P. A., Dubincgin A. V. The technique of «isothermal» flow stress-strain curve of
AMg6 aluminium alloy // Materials working by pressure. – 2008. – №1 (19).
The technique of “isothermal” flow stress-strain curve of AMg6 aluminum alloy is analysed.
The deformation of AMg6 alloy was performed at temperature of 430 °C and 450 °C. Strain rate
was constant in all experimental trials and equal to 0.01 s-1, 0.1 s-1, 0.4 s-1.
Hassel T., Kuzmina O., Golovko A. Plastometric testing of the magnesium alloys
MgCa0,8 and MgCa4.0 // Materials working by pressure. – 2008. – №1 (19).
The article deals with the plastometric testing of one-axial compression of the magnesium
alloys MgCa0,8 and MgCa4.0. The curves of the alloys flow tension for different temperatures and
deformation velocities were obtained.
Marushak P. O., Yasnyi O. P. Estimation carrying capacity two-parameter criteria ща
destruction // Materials working by pressure. – 2008. – №1 (19).
The effect of material properties and crack resistance on the probability of failure was
studied. The SINTAP approach was used for integrity estimation of compact specimens. The FAD
diagram was constructed. It takes into account the probability distribution functions obtained on the
basis of data of literatures, impact test data calculations and experimental data.
Busov V. L., Kuznetsov N. N., Busov D. V. On the influence of impulse electrical and
magnetic fields on the spectrum of deformation structure levels // Materials working by
pressure. – 2008. – №1 (19).
The influence of impulse electric and magnetic fields on the movement of the dislocation
loop and dislocations redistribution in congregations in the framework of the excitonic model of
nucleus dislocation the is considered. The gradient of fields within the skin-layer limits is shown as
the determining factor in this influence. The order of field amplitude magnitudes in the impulse
when plastic deformation begins is set.
Kuzmeko E. A., Kuzmenko V. I. Improvement of deformability of hypoeutectoid steel
in process of cold working // Materials working by pressure. – 2008. – №1 (19).
There were considered the factories which have influence on processing of spheroidizing
Обработка материалов давлением №1 (19), 2008 405
and redistribution of carbides in low - carbon low - alloy steels. There were proposed the conditions
of heat treatment for obtaining of uniform structure of globular pearlite in hot - rolled and deformed
with different degrees of steel for improvement of deformability.
Ignatenko V. N. The use of a cold die forging in the blank production // Materials
working by pressure. – 2008. – №1 (19).
The conversions of mechanical characteristics depending on the value of cold strain,
including hardness and toughness were analyzed. The raw data and results of investigations have
been proposed there have been analyzed.
Aliev I. S., Alieva L. I., Zhbankov Y. G. Forming in radial direct extrusion on fixture //
Processing materials by pressure. – 2008. – №1 (19).
The analysis of forming of radial-direct extrusion on the float is made. The allocation of
logarithmic deformation by the method of separating strainers on tubular billet is made. The form
and size of the hearth of deformation are determine on the billet. The recommendations on the
designing the engineering process are given.
Kuhar V. V., Burko V. A. displaced volumes of billets in the process of upsetting
treatment by convex plates // Materials working by pressure. – 2008. – №1 (19).
The analysis of application of billets upsetting treatment by convex plates is carried out in
the article. There are changes of geometric characteristics of billets during this upsetting, the
analytical design of determination in displaced volumes and some results of experimental research
have been considered. Formulas for calculation of indexes that characterize the degree during
upsetting by convex plates have been explaned in the article.
Evstratov V. O., Pidgirna V. O. The analyze of manufacturing of short workpieces for
operations of extrusion // Materials working by pressure. – 2008. – №1 (19).
The analysis of manufacturing of short workpieces for operations of extrusion is reviewed.
The methods of manufacturing of high accurate and the common characteristics are pointed, for
which the control of workpieces for next mechanical working is taken.
Popov A. V. determination of a reformatting load in a stamp under flat shared ingot
compression // Materials working by pressure. – 2008. – №1 (19).
The influence of a reformatting load in a stamp under flat shared ingot compression is
analyzed, using the example of R6M5 steel. The problem concerning a flat sheared ingot from
strengthened metal has been solved. Forces deformating the ingot have been obtained. The
technological equipment has been developed for realizing the process of flat sheared ingot
compression.
Markov O. E., Yanchuk S. V., Kucenko S. V. The process of formation pulling-down of
a disk on a slab with a hole // Materials working by pressure. – 2008. – №1 (19).
The process of formation of an imperfection of the shape such as pulling-down is considered
at a settling of a disk on a slab with a hole. The sizes of preform are defined, at which the formation
deep and wide pulling-down is observed. Is established, that the imperfection pulling-down at a
settling on a slab with a hole is organized only at a degree of deformation 60 % and more.
Sokolov L. N., Gunko M. I. Existing method forged piece ring type from ingot at hydraulic
press analyze and improvement ways // Materials working by pressure. – 2008. – №1 (19).
Some technological maps of blacksmithing forged pieces such as "ring" are considered. The
comparative analysis is carried out, the universe discourse is designated and the paths of perfecting
the process are marked.
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Volodin I. M., Martyugin V. S. Particularities of the designing technology of making
forged pieces of crankshafts for heavy haulers // Materials working by pressure. – 2008. –
№1 (19).
The analysis of the conventional technology of crankshaft forgings for heavy haulers is
made. The disadvantages of conventional process of stamping shafts with unfolded crankpin are
determined. The new technology of shaft forging production is considered. The methods of
designed of sizing grooves on the basis of the developed mathematical model of metal plastic
forming in reverse direction are given.
Aliev I. S., Matviychuk V. A. Development of local methods of metal forming //
Materials working by pressure. 2008. - N 1 (19).
The ways of expansion of the technology capabilities of shakedown stamping are examined
and the new deformation schemes using active friction effect on the direction and intensity of metal
flow are proposed. Capability of forming of compound circular parts from continuous billets by
shakedown stamping is presented. An approach to the increase of deformability and stability of
billets in different schemes of forming by the control of position and grade angle of expanding
roller are developed.
Roganov L. L, Sereda V. G., Pytc Y. E., Chudnenko O. O. Use of heat friction effect at
rolling of pipe billets on rotor-type machine // Materials working by pressure. – 2008. – №1 (19).
The process of heating of billet ends by friction with subsequent rolling in rotor machine is
considered. The unification of heat and rolling sections was done. The angle time of heating is
established. The correlation for more precise definition of heats angle is found.
Karvatko O. V., Deribo O. V., Ivacko V. T. The experimental-calculated determination
of utilized plasticity resource in surface layer in spinning by cylindrical rollers // Materials
working by pressure. – 2008. – №1 (19).
The experimental-calculating method of estimation of the utilized plasticity resource and its
distribution in the area of the plastic contact the cylindrical roller with the billet feat surface was
developed. The isolines of the utilized plasticity resource in the plastically deformed surface layer
in brass cylindrical billet were obtained.
Skryabin S. A., Shvec L. V. determination of the leading when rolling the storage
from aluminum alloy , in isothermal deformation conditions // Materials working by
pressure. – 2008. – №1 (19).
Leading researches when rolling the storage from aluminum alloy are described, in
isothermal deformation conditions. The leading dependencies from degree of the deformation, the
storage and rolling stamps heating temperature when rolling in smooth rolls and different systems
calibers are determined. The formulas for determination of the leading when rolling the storage
from aluminum alloy, in isothermal deformation conditions are given.
Grusko O. V., Elenych M. P., Kuhar V. V. Getting knees with small hydraulic resistance
longitudinal pipe bending branch pipes // Materials working by pressure. – 2008. – №1 (19).
The ways and devices for pipes bending are analysed. The bypass branch pipes made by a
longitudinal bend is proved to be rational. The design procedure of total hydraulic resistance of
branch pipes is developed. It is shown that the products received on new technology allow to reduce
losses of a pressure in comparison with usual methods by 5-40 times.
Yakovlev S. P., Chernyaev A. V., Platonov V. I., Nechepurenko Y. G. Technological
processes of isothermal deep drawing of the cylindrical details // Materials working by pressure. –
2008. – №1 (19).
Recommendations regarding designing of the technological processes of isothermal deep drawing
of cylindrical details from the anisotropic pieces in the mode of afterflow conditions are proposed.
Обработка материалов давлением №1 (19), 2008 40
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Yakovlev S. S., Chusov A. V. The following drawing operations of the rectangular
elongated boxes from anisotropic materials under the scheme "oval-rectangular" // Materials
working by pressure. – 2008. – №1 (19).
The results of theoretical researches of force modes of the following operations of
rectangular elongated boxes isothermic drawing from transversal-anisotropic materials through the
scheme “oval-rectangular” in conditions of short-lived creeping are presented.
Radchenko O. K., Gogaev K. O. Complex estimation formability of powder mixtures
solder composite material on nickel base // Materials working by pressure. – 2008. – №1 (19).
The formability of powder mixtures carbonyl nickel and gas atomisation alloy Ni-Si-B
(with contents last 20, 40, 60, and 80 mass. %), as well as source powder is studied. It is shown that
for description of the formability of such systems it is not enough to use as a criterion, relative
density at the begining of forming, but it is necessary to use the complex approach. It can include
estimation of the mixtures by “formability rang” and by the strength of pressing.
Shapovalov V. A., Peshkov A. N., Burnashev V. R., Konstantinov V. S.,
Stepanenko V. V., Kolesnichenko V. I. Compacting of metal shavings of hard-deform steels
with electrical heating using // Materials working by pressure. – 2008. – №1 (19).
Semi-continuous method of metal shavings pressing by combining electrical heating and
mechanical pressing with possibility of compacting different shavings and fractions of hard-deform
steels and alloys is considered.
Gryn A. G., Boyko I. A., Boguckyi A. A. The research of the heating of the shell of the
flux-cored wire during its lugging // Materials working by pressure. – 2008. – №1 (19).
It was experimentally and theoretically researched of the temperature of the heating of
the shell of the flux-cored wire during lugging and its influence upon components of the filler.
The experiments were conducted with the use of shells of steel grade 08 boiling and 65 hydrigen.
The temperatures of the heating of shells of flux-cored wire from these steels have been calculated,
the graphs of its dependencies are built.
Doljanskyi A. M., Ocheretnaya N. N. Collation of the factors of deformation wire
during twisting at the wire-drawing process // Materials working by pressure. – 2008. –
№1 (19).
The evaluation factors of shift deformation at wire twisting with reference to the wire-
drawing process were defined. It is shown that the best parameter is the tangent shift deformation
corner on the wire surface. Equation for determination shear deformation ratio of wire for control
alternating twisting at drawbench are shown.
Pełka M., Bajor T., Suliga M. Research at the process of drawing the welding nickel-
plated wire // Materials working by pressure. – 2008. – №1 (19).
The method of electrolytic nickel plating welding wire is shown at work. Both the influence
of preparation of the surface and the time – current bath parameters of the thickness of the nickel
layer are considered. An influence of the drawing process on the thickness of nickel coating is
shown.
Dvorjak A. I., Ivanov A. A. Experimental research strip flattening at two-passes
draughting schedule // Materials working by pressure. – 2008. – №1 (19).
Experimental research of strip flattening at two-passes draughting schedule are carried. Principal
dependence of final width and drawing from reduction rate during the first pass and following drawing to
the final thickness are detected. On the basis of this experimental the recommendations due to the increase
of the productivity of the production of the flattening strip have been proposed.
Hanin M. I., Alekseyev A. V. Modelling of process of helical rolling and choice of the
initial speed sewing parameters providing power inputs loweling // Materials working by
pressure. – 2008. – №1 (19).
Обработка материалов давлением №1 (19), 2008 408
On the basis of the developed algorithms and programs of computer calculation the
modelling of the process of sewing is considered. Rational speed parameters and mills tuning
characteristics providing minimum power inputs of the process with the constant productivity are
given.
Zavgorodnyi D. V., Gavrilchenko O. A., Zavgorodnyi A. B. Exact editing of thick–walled oil
grade at ten rolls editing machines // Materials working by pressure. – 2008. – №1 (19).
The analysis of schemes of editing the pipes on the straightening machines is lead at the
realization of various types of adjustment. The recommendations at the choice of optimum scheme of
editing from the point of view of the defect formation, and also energy parameters of process are given.
Yurkov K. Y., Faychak A. A., Shevchenko V. V. The method of carrying out and the
results of experimental researches of cold deformations process of relatively thin sheets, strips
and tapes in four-high mill stands with a drive on trunnion // Processing of materials by
pressure. – 2008. – №1 (19).
The design procedure of cold rolling process in four-high mill stands with a drive on
trunnion is considered and the experimental researches are carried out. Relation between axial force
appeared in case of drive through backup rolls subject to rolling forse are defined by results of
researches.
Mroz S. Influence of change in the temperature of band over its length on energy-
power parameters // Processing materials by pressure. – 2008. – №1 (19).
Change in the temperature of band over its length, associated with the stock being non-
uniformly heated in the furnace, influences the variations in the magnitudes of energy-power
parameters. Using the FE programs for the computation of the values of the energy–force parameters
can take into account the distribution of temperature over the band length. In the paper the
mathematical model of the computer program Forge3® was used to theoretical examination of the
energy–force parameters and plastic metal flow in the roughing stands of the continuous rolling mill.
Smirnov E. N., Sklyar V. A., Kojinov D. S. Research of the two stage «soft» reduction
of continuously-casting blooms in liquid – solid state on physical model // Materials working
by pressure. – 2008. – №1 (19).
Description of a new method of the «soft» reduction of continuously-casting blooms and
billets in liquid – solid state is presented. A plan and method of experiment on the physical
modeling of the two stage «soft» reduction of continuously-casting blooms is given. The further
ways of perfection of this method and direction of research are indicated.
Korohov V. G., Cherkover R. A., Lontckiy A. E. An axial extraction at the reduction of
slab in a reversible universal cage // Materials working by pressure. – 2008. – №1 (19).
The results of experimental research of axial extraction of slab after one and a row of the
successive wringing out are resulted in the calibrated vertical rolls and after smoothing of thickness
in the horizontal rolls. The influence of parameters of box caliber, sizes of slab, total wringing out
and number of wringing out are taken into account. The found dependences allow to calculate the
resulted thickness of the roll after vertical rollers and the width after the smoothing of thickness in
the horizontal rolls.
Doljanskyi A. M., Ermakova O. C., Lomov I. N., Lomova O. B., Petlevaniy E. A.
Determination of coefficient of friction on the contact of steel wire-rod and roller of
scalebreaker surfaces // Materials working by pressure. – 2008. – №1 (19).
The experimentally-analytical determination of the coefficient of friction on the contact of
steel wire-rod and roller of scalebreaker surfaces is executed. It is shown that the relation of
diameters of the roller and wire-rod is a basic factor that define the coefficient of friction level.
Antonuk E. Y., Bobuh I. A., Bobuh V. I., Fedorenko L. N. The dynamic model of the
vertical fluctuations of the four-rolled cage of rolling mill // Materials working by pressure. –
2008. – №1 (19).
The mathematical model of dynamic processes in the main line of the four-rolled cage with
the hydraulic pressure device suing the application of modern computers and up-to-date programme
Обработка материалов давлением №1 (19), 2008 409
facilities has been developed. The model allows to realize the calculation and generalization of
statistical data on the exit of the system with the probable distribution of main parameters.
Vishnevskiy P. S., Dobrovlyanskiy S. M., Holyavik O. V. Experimental device for
modeling process of an drawing of box-shaped products from sheet metal // Materials
working by pressure. – 2008. – №1 (19).
The existing analysis methods of metal shaping processes are considered. For modeling the
process of drawing the most effective method of hydrodynamic analogies is chosen. The design of
the device for physical analogue modeling the process of box-shaped products is presented. The
device allows to verify the efficiency of the a method of potentials in calculating of the optimal
shape of billet in intermediate passes.
Daliychuk A. P., Korennoy V. V., Macko S. V., Cymbal P. P., Antonyk A. A. The
transitional processes the in main drives of clean cages of 1680 mill // Materials working by
pressure. – 2008. – №1 (19).
The results of experimentally-industrial researches of transitional processes in the engines of
rolling mill stands during entering are given, and also on leaving from the continuous group of hot
strip. Сombined writing engine torque for process of filling and liberation strip at continuous train
are make to give valuation between cage tension.
Evstratov V. O., Kovorotniy T. L., Pivovar V. S. The specifications of cold rolled
machines // Materials working by pressure. – 2008. – №1 (19).
The specifications of main cold rolled machines are reviewed. Its description is given by the
manner of action, by the driving manner of rolls, by the manner of design. Cross and longitudinal
cutting machines are reviewed, as well as the equipment for obtaining stripe as workpiece blank for
consequent cold rolling.
Zolotopup K. N., Danylenko V. Y. Analysis of the work of stamping hammer
depending on the use of the power system // Materials working by pressure. – 2008. – №1 (19).
Аnalysis of the use of the energy carrier for one and the same hammer in depending of
changing the pressure energy carrier fore one double motion, which are was selected as time
interval during which the use of energy carrier in the most effective one is carried out.
Makovey V. O., Starodub M. P., Kalujniy V. L., Shidlovskiy M. S., Stafenko V. V.
Problem of increase of stability of stamping stamps // Materials working by pressure. –
2008. – №1 (19).
The major factors influencing stability of stamping stamps are considered. Their operation is
accompanied by joint action of two destroying processes - deterioration and weariness. It is proved,
that destruction of stamps has fatigue character. The method of increasing of stability of stamps by
cold extrusion with pressurereverse is offered. Wear resistance of the image on a working surface
can be raised by the combined covering.
Medvedev V. S. Rational technological schemes and composition of the equipment of
few tonnage mill for hot roll profiles of wide grade production // Materials working by
pressure. – 2008. – №1 (19).
The conception of creation of economical small-capacity rolling mills for the production of
hot-rolled steel shapes in amounts from 10 000 to 200 000 tons at metallurgical miniplants is
considered in this article. The basic requirements to such rolling mills along with the
recommendations to the creation of rational scemes of rolling and composition of small-capacity
mills for this purpose are also formulated in the article.
Morozov D. I., Andreeva N. I., Kulik A. N., Danko A. V. Exploration of dynamic
parameters of drive of finishing stand of plate mill with speed change of rolling // Materials
working by pressure. – 2008. – №1 (19).
Influence of speed change of rolling on the dynamic parameters of drive of finishing stand
of plate mill is explored. It is set that electric drive of stand can work off the program of change of
speed necessary for the removal thickness differences, but swaying processes in spindles result in
the brief increase of moments of drive by 40÷60%.
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Popikov A. A. Modelling liquid friction bearings for rolling mill // Materials working
by pressure. – 2008. – №1 (19).
The principal availability of the similarity theory use for research of hydromechanical
characteristics of liquid friction bearing for rolling mill supports with unnatural liquid, as well as the
shaft of smaller diameter with the consequent interpretation of obtained dependences for the real
units is considered.
Rey R. I. Determination of the parameters of motion of no-anvil hammer // Materials
working by pressure. – 2008. – №1 (19).
Equation of motion block no-anvil hammer for invariable value stiffness coefficient hammer
block connection to one of block are determinate. Dependencies for determination this stiffness
coefficient hammer block connection which deflection of size speed blow hammer block not exceed
given level are propose.
Roganov L. L., Karnauh S. G., Chosta N. V., Sholeninov V. E. Research of machinery
with variable tapering for technological processes metals working by pressure with maximal
start power // Materials working by pressure. – 2008. – №1 (19).
On the basis of the analysis of mathematical model of a device the recommendations on the
choise of geometrical parameters of wedge-hinge mechanism with concave wedge, slide block, a
stone, bush knives are developed to provide the optimal trajectory of knives movement and high
quality of cut off workpieces.
Svetlychniy A. V., Volodin V. V., Kulagin R. Y. Varian of the system of diagnostic of
wearresistance of the section of rolling mill // Materials working by pressure. – 2008. – №1 (19).
A new approach of the roller’s wear control for a rolling mill is offered. It is based on the
principles of self-learning systems. The application of this approach allows to improve quality of
the product, to prolong the roller’s service term and to relieve the operating personnel.
Sereda B. P., Kruglyak I. V., Belokon Y. O., Jerebcov O. A. Development of the
nomograph of optimization of diameters of multiroll cold mills // Materials working by
pressure. – 2008. – №1 (19).
The analytical investigations for picking of rolls on multiroll mills are made. The
nomograph of optimization of diameters of rolls for the cold mills is developed. It is established that
the diameters reduction of the worker rolls up to 93 mms is probably considerable with preservation
of exesting mill’s bench «1728».
Smirnov A. M., Krichun A. A. Research of the multilinker geared linkage executive
mechanism of press by using its animation parametrical model // Materials working by
pressure. – 2008. – №1 (19).
In this article it is proposed the method of analysis of the multilinker geared linkage executive
mechanism of press by using its animation parametrical model. Data about influence of the sizes of
separate parts of this mechanism on kinematics characteristics are given. Recommendations how to
choose the rational sizes of parts of mechanism in its designing are formulated.
Ustinov V. E., Eryomkin E. A. Automatic regulation of the pressing velocities //
Materials working by pressure. – 2008. – №1 (19).
The article deals with the device of automatic regulation of the pressing velocities. The
scheme of the suggested velocity regulator provided with a prognostic device is given. The
regulator gives an opportunity to increase accuracy a quality of an item production. Dynamic
processes which occur in drive hydraulic presses are shown. The analysis of the dynamic model
provided with the velocity regulator is also given. Recommendation concerning the regulator
applying are proposed.
Shinkarenko O. M., Korchak E. S. The braking control walking bearn of hydraulic
forging press // Materials working by pressure. – 2008. – №1 (19).
Distinguishing features of automatic control system of ram breaking process of hydraulic
forging press on the basis of the designed mathematical models of breaking on working and return
strokes are considered. It permits with sufficient precision to predetermine speed and inertia over-
run of a ram with allowance for such factors as changeable hydraulic resistance, type of
constructive characteristics, time of control valve closing and etc.