International Scientific-Technical and Production Journal
February
2009
#2
English translation of the monthly «Avtomaticheskaya Svarka» (Automatic Welding) journal published in Russian since 1948
Founders: E.O. Paton Electric Welding Institute of the NAS of Ukraine
International Association «Welding»
Editor-in-Chief B.E.Paton
CONTENTS
Editorial board:
Yu. <...> N.Lankin I.K.Pokhodnya
V.N.Lipodaev V.D.Poznyakov
V.I.Makhnenko K.A.Yushchenko
O.K.Nazarenko A.T.Zelnichenko
I.A.Ryabtsev
International editorial council:
N.P.Alyoshin
U.Diltey
Guan Qiao
D. von Hofe
V.I.Lysak
N.I.Nikiforov
B.E.Paton
Ya. <...> K e y w o r d s : diffusion bonding, sleeve--flange assembly, dissimilar materials, stress-strain state, computer modelling, plastic
strains
Components of a cylindrical shape, made from dissimilar materials by diffusion bonding, are often used
in machine building. <...> Study [1] considers the stressstrain state (SSS) of assemblies of the cylinder--cylinder and sleeve--sleeve types in diffusion bonding. <...> It
is shown that under force and thermal loading the
level of stresses within the bond zone dramatically
changes even when the parts bonded have the same
diameters. <...> Bonding the sleeve--flange type cylindrical
parts of different diameters leads to formation of a
stress raiser in the sleeve-to-flange transition zone,
which may have a substantial effect on SSS of the
bond and its formation. <...> The purpose of this study was to investigate SSS
of the sleeve--flange assemblies within the bond zone
in diffusion bonding. <...> Modelling of SSS was carried out allowing for the
effect of plastic strains. <...> The investigations were carried out on the sleeve-flange bond samples and computation model (Figure 1). <...> Superscripts «h» and «c» stand for heating and cooling, respectively, and subscript «p» ---- stands for the plastic solution; the
subscript also comprises symbols designating materials of different strength values, i.e. less strong (with lower yield stress) material of the
sleeve as «s» and flange as «f»; LTEC is the linear thermal expansion coefficient.
pression with the axial force at a constant temperature. <...> Therefore, analysis of the results of the plastic
solution shows that the variants of application of a
constant compressive load do not <...>
The_Paton_Welding_Journal_№2_2009.pdf
International Scientific-Technical and Production Journal
February
2009
# 2
English translation of the monthly «Avtomaticheskaya Svarka» (Automatic Welding) journal published in Russian since 1948
Founders: E.O. Paton Electric Welding Institute of the NAS of Ukraine
International Association «Welding»
Editor-in-Chief B.E.Paton
Editorial board:
Yu.S.Borisov V.F.Khorunov
A.Ya.Ishchenko I.V.Krivtsun
B.V.Khitrovskaya L.M.Lobanov
V.I.Kirian A.A.Mazur
S.I.Kuchuk-Yatsenko
Yu.N.Lankin I.K.Pokhodnya
V.N.Lipodaev V.D.Poznyakov
V.I.Makhnenko K.A.Yushchenko
O.K.Nazarenko A.T.Zelnichenko
I.A.Ryabtsev
Publisher: International Association «Welding»
CONTENTS
SCIENTIFIC AND TECHNICAL
Makhnenko V.I. and Kvasnitsky V.V. Stress-strain state of
assemblies of the cylindrical shape in diffusion bonding ........................ 2
Nesterenko N.P., Senchenkov I.K., Chervinko O.P. and
Menzheres M.G. Simulation of temperature fields and stresses
in polyethylene pipes in hot-tool welding .............................................. 7
International editorial council:
N.P.Alyoshin (Russia)
U.Diltey (Germany)
Guan Qiao (China)
D. von Hofe (Germany)
V.I.Lysak (Russia)
N.I.Nikiforov (Russia)
B.E.Paton (Ukraine)
Ya.Pilarczyk (Poland)
P.Seyffarth (Germany)
G.A.Turichin (Russia)
Zhang Yanmin (China)
A.S.Zubchenko (Russia)
Promotion group:
V.N.Lipodaev, V.I.Lokteva
A.T.Zelnichenko (exec. director)
Translators:
O.S.Kurochko, I.N.Kutianova,
T.K.Vasilenko, V.F. Orets
PE «Melnik A.M.»
Editor
N.A.Dmitrieva
Electron galley:
I.S.Batasheva, T.Yu.Snegiryova
Address:
E.O. Paton Electric Welding Institute,
International Association «Welding»,
11, Bozhenko str., 03680, Kyiv, Ukraine
Tel.: (38044) 287 67 57
Fax: (38044) 528 04 86
E-mail: journal@paton.kiev.ua
http://www.nas.gov.ua/pwj
State Registration Certificate
KV 4790 of 09.01.2001
Subscriptions:
$324, 12 issues per year,
postage and packaging included.
Back issues available.
All rights reserved.
This publication and each of the articles
contained herein are protected by copyright.
Permission to reproduce material contained in
this journal must be obtained in writing from
the Publisher.
Copies of individual articles may be obtained
from the Publisher.
© PWI, International Association «Welding», 2009
Getskin O.B., Erofeev V.A. and Poloskov S.I. Simulation of the
process of electrode metal transfer in short-circuiting arc
welding ............................................................................................... 11
Shlepakov V.N. and Naumejko S.M. Peculiarities of
desulphurisation of weld metal in flux-cored wire welding ..................... 16
Lazorenko Yu.P., Shapovalov E.V., Melnik E.S., Lutsenko N.F.
and Dolinenko V.V. Efficiency of method for automatic
recognition of electrode imprints in spot welding of three-layer
honeycomb structures ........................................................................ 19
INDUSTRIAL
Sidlin Z.A. Current status of welding consumables production
in Russia ............................................................................................ 23
Barvinko A.Yu., Barvinko Yu.P. and Golinko V.M. To the 60th
anniversary of industrial application of the technology of
manufacturing cylindrical tanks from coiled blanks ............................... 26
Skulsky V.Yu. and Gavrik A.R. Effect of carbon on phase
composition of weld metal of welded joints in martensitic steel
with 9 % Cr ........................................................................................ 28
Khaskin V.Yu. Application of laser-arc cladding for filling up
narrow cavities in aluminium alloy items ............................................... 31
BRIEF INFORMATION
Makarenko N.A., Chigarev V.V., Granovsky N.A.,
Bogutsky A.A. and Kushchy A.M. Device for igniting arc of
double-anode plasmatron ................................................................... 35
Tsykulenko K.A. On the role of contact resistances in
electroslag cladding process ............................................................... 37
News .................................................................................................. 40
NEWS
International Conference «Welding and Related Technologies
into the Third Millennium» ................................................................... 42
International Forum on Nanotechnologies ............................................ 44
Developed at PWI ........................................................ 15, 34, 41, 43, 45
Стр.1
STRESS-STRAIN STATE OF ASSEMBLIES
OF THE CYLINDRICAL SHAPE IN DIFFUSION BONDING
2National Technical University of Ukraine «Kiev Polytechnic Institute», Kiev, Ukraine
1E.O. Paton Electric Welding Institute, NASU, Kiev, Ukraine
V.I. MAKHNENKO1 and V.V. KVASNITSKY2
The stress-strain state of assemblies of the sleeve--flange type, made from dissimilar materials by diffusion bonding, and
regularities in formation of this state were studied by finite element computer modelling, allowing for the effect of
plastic strains.
Keywords: diffusion bonding, sleeve--flange assembly, dissimilar
materials, stress-strain state, computer modelling, plastic
strains
Components of a cylindrical shape, made from dissimilar
materials by diffusion bonding, are often used
in machine building. Study [1] considers the stressstrain
state (SSS) of assemblies of the cylinder--cylinder
and sleeve--sleeve types in diffusion bonding. It
is shown that under force and thermal loading the
level of stresses within the bond zone dramatically
changes even when the parts bonded have the same
diameters. Bonding the sleeve--flange type cylindrical
parts of different diameters leads to formation of a
stress raiser in the sleeve-to-flange transition zone,
which may have a substantial effect on SSS of the
bond and its formation.
The purpose of this study was to investigate SSS
of the sleeve--flange assemblies within the bond zone
in diffusion bonding.
Modelling of SSS was carried out allowing for the
effect of plastic strains. It is reported [2] that plastic
strains can be subdivided into time-independent
strains (instantaneous plasticity) and time-dependent
ones (creep). The present study investigates instantaneous
plasticity strains. Modelling of SSS within the
elasticity theory frames is considered in study [3].
Investigations were conducted by the computer
modelling method using software package ANSYS.
Mises condition σeq = σy, where σeq are the equivalent
(reduced) stresses, and σy is the yield stress, was taken
as a criterion of formation of plastic strains. Results
of the present study were compared with those obtained
in study [4] dedicated to modelling of SSS in
diffusion bonding of cylindrical parts containing no
design stress raiser.
The investigations were carried out on the sleeve-flange
bond samples and computation model (Figure
1). Variants of the combinations of materials
properties are given in the Table. The strengthening
modulus in plastic deformation for all materials was
assumed to be equal to zero, except for model 1, where
it was assumed to be equal to 1⋅103 MPa to provide
stability of the solution.
The results of solving the plastic problems were
compared with those of solving the elastic problems.
In model 1, loading was applied according to the
classic scheme of diffusion bonding, i.e. uniform comFigure
1. Schematic of the sleeve--flange assembly bond (a) and sections of finite element model (b)
© V.I. MAKHNENKO and V.V. KVASNITSKY, 2009
2
2/2009
Стр.2