Abstract
The uniformity of plastic strain distribution in a workpiece after equal channel angular pressing (ECAP) was studied using finite element software ABAQUS in 3D. Processing parameters including the channel intersection angle Φ, channel outer curvature Ψ, pressing speed, friction and processing route were varied to study their effects on strain homogeneity. It was found that a single ECAP pass was unable to produce homogenous strains in a workpiece although strain distribution can be improved by selecting the appropriate processing parameters. Multiple ECAP passes improved strain homogeneity significantly.
Get full access to this article
View all access options for this article.
References
1.
Kim
H. S.
: Mater. Sci. Eng. A , 2001 , A315 , 122 –128 .
2.
Suh
J. Y.
,
Kim
H. S.
,
Park
J. W.
and
Chang
J. Y.
Scr. Mater ., 2001 , 44 , 677 –681 .
3.
Oh
S. J.
and
Kong
S. B.
Mater. Sci. Eng. A , 2003 , A343 , 107 –115 .
4.
Semiatin
S. L.
,
Delo
D. P.
and
Shell
E. B.
Acta Mater ., 2000 , 48 , 1841 –1851 .
5.
Prangnell
P. B.
,
Harris
C.
and
Roberts
S. M.
Scr. Mater ., 1997 ,37 , 983 –989 .
6.
Iwahashi
Y.
,
Wang
J.
,
Horita
Z.
,
Nemoto
M.
and
Langdon
T. G.
Scr. Mater ., 1996 , 35 , 143 –146 .
7.
Kim
H. S.
: J. Mater. Res ., 2002 , 17 , 172 –179 .
8.
Brandes
E. A.
and
Brook
G. B.
‘Smithells light metals handbook'; 1998, Oxford, Butterworth-Heinemann.
9.
Kalpakjian
S.
: ‘Manufacturing engineering and technology’ ; 1995 , New York , Addison-Wesley Publishing Company .
10.
Wu
Y.
and
Baker
I.
Scr. Mater ., 1997 , 37 , 437 –442 .
11.
Dumoulin
S.
,
Roven
H. J.
,
Werenskiold
J. C.
and
Valberg
H. S.
Mater. ScL Eng. A , 2005 , A410 , 248 –251 .
12.
Nagasekhar
A. V.
,
Tick-Hon
Y.
,
Li
S.
and
Seow
H. P.
Mater. Scl Eng. A , 2005 , A410 , 269 –272 .
13.
Goto
Y.
,
Wakasugi
S.
and
Kozai
T.
J. Mater. Mech. Work Technol , 1982 , 6 , 51 –62 .
14.
Lide
D. R.
(ed.): ‘CRC handbook of chemistry and physics’, 1994, Boca Raton, FL, CRC Press.
15.
Segal
V. M.
: Mater. Sci.. Eng. A , 2003 , A345 , 36 –46 .
16.
Kamachi
M.
,
Furukawa
M.
,
Horita
Z.
and
Langdon
T. G.
Mater. Sci.. Eng. A , 2003 , A347 , 223 –230 .
17.
Berdon
P.
,
Furukawa
M.
,
Horita
Z.
,
Nemoto
M.
and
Langdon
T. G.
Metall. Mater. Trans. A , 1999 , 30A , 1989 –1997 .
18.
Kim
I. Y.
,
Kim
J. Y.
,
Shin
D. H.
and
Park
J. T.
Metall Mater. Trans. A , 2003 , 34A , 1555 –1558 .