International Scientific-Technical and Production Journal
September
2012
#9
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
Publisher: International Association «Welding»
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. <...> Pilarczyk
G.A.Turichin
Zhang Yanmin
A.S.Zubchenko
(Russia)
(Germany)
(China)
(Germany)
(Russia)
(Russia)
(Ukraine)
(Poland)
(Russia)
(China)
(Russia)
Promotion group:
V.N.Lipodaev, V.I.Lokteva
A.T.Zelnichenko (exec. director)
Translators:
A.A.Fomin, O.S.Kurochko,
I.N.Kutianova, T.K.Vasilenko
SCIENTIFIC AND TECHNICAL
Zyakhor I.V. and Kuchuk-Yatsenko S.I. Friction welding
of PIM heat-resistant steel to steel 40Kh ................................. 2
Grinberg B.A., Elkina O.A., Patselov A.M., Inozemtsev
A.V., Plotnikov A.V., Volkova A.Yu., Ivanov M.A., Rybin
V.V. and Besshaposhnikov Yu. <...> The investigation results are presented on peculiarities of formation
of dissimilar joints between steel AISI310 and structural steel 40Kh under different thermal-deformation
cycles of friction welding in manufacture of bimetal shafts for automotive engine turbocharger rotors. <...> K e y w o r d s : friction welding, bimetal joints, powder injection moulding, welded joints, turbocharger rotor shafts
One of the new powder metallurgy methods is
powder injection moulding [1—5], which in the
English technical literature is collectively known
as the PIM-technology. <...> Powder injection moulding has been gaining an increasingly wider acceptance in the last years owing to a number of
advantages over traditional methods of metal
processing, first of all in manufacture of complex-geometry and mass-production parts. <...> For example,
these are wheels of bimetal shafts for automotive
engine turbocharger rotors (TCR). <...> The technological cycle of manufacture of the
bimetal TCR shafts provides <...>
The_Paton_Welding_Journal_№9_2012.pdf
International Scientific-Technical and Production Journal
September
2012
# 9
English translation of the monthly «Avtomaticheskaya Svarka» (Automatic Welding) journal published in Russian since 1948
Editor-in-Chief B.E.Paton
Yu.S.Borisov V.F.Khorunov
A.Ya.Ishchenko I.V.Krivtsun
B.V.Khitrovskaya L.M.Lobanov
V.I.Kyrian 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
CONTENTS
SCIENTIFIC AND TECHNICAL
. and
. Friction welding
of PIM heat-resistant steel to steel 40Kh ................................. 2
. and
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)
G.A.Turichin (Russia)
Zhang Yanmin (China)
A.S.Zubchenko (Russia)
V.N.Lipodaev, V.I.Lokteva
A.T.Zelnichenko (exec. director)
A.A.Fomin, O.S.Kurochko,
I.N.Kutianova, T.K.Vasilenko
N.A.Dmitrieva
D.I.Sereda, T.Yu.Snegiryova
. Problems of stirring
and melting in explosion welding (aluminium—tantalum) ............ 12
. and
.
Effect of palladium on structure and technological
properties of Ag—Cu—Zn—Ni—Mn system brazing filler
alloys ..................................................................................... 20
. and
. Substantiation of «leak-before-break» criterion for
vertical cylindrical tanks for oil storage .................................... 26
. Transistor power sources for electric arc
welding (Review) .................................................................... 30
INDUSTRIAL
. and
. Technology of repair welding of boiler unit
assemblies without postweld heat treatment ............................ 37
State Registration Certificate
KV 4790 of 09.01.2001
$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
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Copies of individual articles may be obtained
from the Publisher.
© PWI, International Association «Welding», 2012
. and
. Modern methods of
surfacing the tools of agricultural tillers and harvesters
(Review) ................................................................................. 43
. Experience in hardfacing of
propeller shafts at the PJSC Kherson Shipyard ........................ 50
. Effect of flux composition on
thermal-physical and physical-chemical processes in
liquid-metal electroslag surfacing ............................................ 52
Developed at PWI ................................................................... 25
Pub
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Inte
O
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Pa iona
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t
ctr
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t
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NA
S of Ukr
a
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Zyakhor I.V
Editorial b
o
ard:
Grinberg B.A., Elkina O.A., Patselov A.M., Inozemtsev
A.V., Plotnikov A.V., Volkova A.Yu., Ivanov M.A., Rybin
V.V
isher:
K
u
chukY
atsenko
S.I
Khorunov V.F., Maksymova S.V
Besshaposhnikov Yu.B
International editorial c
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Inte
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Stefaniv B.V
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Стр.1
FRICTION WELDING OF PIM HEAT-RESISTANT STEEL
TO STEEL 40Kh
I.V. ZYAKHOR and S.I. KUCHUK-YATSENKO
E.O. Paton Electric Welding Institute, NASU, Kiev Ukraine
Experimental data are given on evaluation of structure of heat-resistant steel AISI310 produced by the
powder injection moulding technology. The investigation results are presented on peculiarities of formation
of dissimilar joints between steel AISI310 and structural steel 40Kh under different thermal-deformation
cycles of friction welding in manufacture of bimetal shafts for automotive engine turbocharger rotors.
Keywords: friction welding, bimetal joints, powder
injection moulding, welded joints, turbocharger rotor
shafts
One of the new powder metallurgy methods is
powder injection moulding [1—5], which in the
English technical literature is collectively known
as the PIM-technology. Powder injection moulding
has been gaining an increasingly wider acceptance
in the last years owing to a number of
advantages over traditional methods of metal
processing, first of all in manufacture of complex-geometry
and mass-production parts. According
to the data given in [3], density of the
finished parts produced by the PIM-technology
is 96 to 100 % of its theoretical value, while the
detected pores and non-metallic inclusions have
small sizes and a spherical shape, and are uniformly
distributed in the bulk.
The promising market for the parts produced
by the PIM-technology is the automotive engine
construction industry. The issue of current importance
in terms of technology and economy is
application of the PIM-technology to manufacture
complex-configuration parts. For example,
these are wheels of bimetal shafts for automotive
engine turbocharger rotors (TCR). Compared to
the currently applied investment casting method,
the PIM-technology provides an increased productivity,
minimal possible deviations of sizes
and a high quality of the surface of the wheels
for the TCR shafts.
CCr
AISI310 <0.2
Content of elements, wt.%
Nb
Si
40Kh 0.36—0.40 0.8—1.1 —
The technological cycle of manufacture of the
bimetal TCR shafts provides for the use of friction
welding (FW) of a heat-resistant alloy wheel
to a structural steel shank. Friction welding is
applied to advantage to join materials produced
by the casting, thermo-mechanical deformation
and powder metallurgy methods [6—8]. However,
no information on application of FW for the parts
produced by the PIM-technology has been found
in technical literature so far. Therefore, it is of
scientific and practical interest to study the effect
of structure of the PIM-materials on the possibility
of joining them to structural steel to manufacture
bimetal TCR shafts.
The purpose of this study was to investigate
formation of dissimilar joints between heat-resistant
steel AISI310 produced by the PIM-technology
and structural steel 40Kh under different
thermal-deformation cycles of FW for manufacture
of bimetal TCR shafts.
General view of the TCR shaft wheels made
by the PIM-technology from steel AISI310 (feed
stock – BASF «Catamold» [3]) is shown in
Figure 1. Chemical composition of the materials
welded, as well as their mechanical properties
are given in the Table.
Austenitic stainless steel AISI310 (domestically
produced analogue – steel 20Kh25N20S2
(EI283)) combines satisfactory heat resistance
and high oxidation resistance at high temperatures.
Bimetal TCR shafts were produced by joinChemical
composition and mechanical properties of materials welded
Steel grade
Mn
Fe
Ni
σy, MPa σt, MPa
24—26 <0.2 1.5—2.0 1.0—1.4 Base 18—21 >205 >515
<0.35 0.5—0.8 Same <0.3 >720 >860
© I.V. ZYAKHOR and S.I. KUCHUK-YATSENKO, 2012
2
9/2012
Mechanical properties
δ, %
ψ, %
>40 >50
<14 <60
Стр.2