A Numerical Analysis on the Dissimilar Channel Angular Pressing Process by Rolling


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The dissimilar channel angular pressing (DCAP) process by rolling was numerically modeled and analyzed by the rigid-plastic two-dimensional finite element method in order to optimize the strain state of the DCAP process. Three distinct deformation mechanics during DCAP by rolling includes rolling, bending, and shearing. AA 1100 aluminum alloy was selected as a model material for the analysis of DCAP process. Difference in the friction conditions between the upper and lower roll surfaces led to large variation of shear strain component throughout the thickness of sample. Strain accompanying bending turned out to be negligible because of a large radius of curvature by relatively large roll diameter. The concentrated shear deformation was monitored at the corner of the DCAP-channel where the abrupt change in the direction of material flow occurred. The strain state at the upper and lower surfaces was observed to vary strongly from that of the center layer of the sheet.



Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie




M. Y. Huh et al., "A Numerical Analysis on the Dissimilar Channel Angular Pressing Process by Rolling", Materials Science Forum, Vols. 475-479, pp. 3231-3234, 2005

Online since:

January 2005




[1] Y. Iwahashi, Z. Horita, M. Nemoto and T. G. Langdon: Acta Mater. Vol. 45 (1997), p.4733.

[2] J.H. Han, H.K. Seok, Y.H. Chung, M.C. Shin and J.C. Lee: Mater. Sci. Eng. Vol. A323 (2002), p.342.

[3] Z. Horita, T. Fujinami and T.G. Langdon: Mater. Sci. Eng. Vol. A318 (2001), p.34.

[4] Y.H. Chung, H.D. Kim, H.T. Jeong, O. Engler and M.Y. Huh: Mater. Sci. Forum Vol. 396-402 (2002), p.475.

[5] M.Y. Huh, J.K. Kim and Y.H. Chung: Rare Metals Vol. 21, Supp. (2002), p.41.

[6] Y.H. Chung, J.P. Ahn, H.D. Kim, B.B. Hwang, O. Engler and M.Y. Huh: Mater. Sci. Forum Vol. 408-412 (2002), p.1495.

[7] H.D. Kim, M.Y. Huh, N.J. Park and Y.H. Chung: Met. and Mat. Int. Vol. 9 (2003), p.413.

[8] H.J. Choi, K.R. Lee, B.B. Hwang and M.Y. Huh: Trans. Mater. Proc. Vol. 12, No. 1 (2003), p.43.

[9] H, J. Choi, B.B. Hwang, B.D. Ko, J.Y. Lim and D.H. Jang: Mater. Sci. Forum Vol. 449-452 (2004), p.101.

[10] Air Force Material Laboratory, Forging Equipment, Materials and Practices, Metals and Ceramics Information Center, 1973, p.64.

[11] E. Paul De Garmo, Mat. and Proc. in Manuf., Macmillan, New York, 1967, p.27.

[12] J. Datsko, Mat. Prop. And Manuf. Proc., Malloy, Ann Arbor, 1966, p.31.

[13] V. Randle and O. Engler: Introduction to Texture Analysis, Macrotexture, Microtexture and Orientation Mapping (Gordon and Breach, Amsterdam 2000).

DOI: https://doi.org/10.1201/9781420063660

[14] O. Engler, M. Y. Huh, and C. N. Tomé: Metall. Mater. Trans. Vol. A31 (2000), p.2299.