Study of inner corner influence in equal Channel Angular Pressing using 3D finite element simulation
- 98 Downloads
Abstract
Equal Channel Angular Pressing (ECAP) is currently being widely investigated because of its potential to produce ultrafine grained microstructures in metals and alloys. A sound knowledge of the plastic deformation and the strain distribution is necessary for understanding the relationships between strain inhomogeneity and geometry of die. Considerable research has been reported on finite element analysis of this process, assuming 2D plane strain condition. The 2D models are not suitable due to the component geometry, especially for work-piece with cylindrical cross section. In the present work 3D simulation of ECAP process was carried out for different inner corner radii for strain hardening aluminium alloy (AA 6101). Strain inhomogeneity is presented and discussed for all cases. Pattern of strain variation along certain radial lines in the body of work-piece is presented.
Keywords
Equal Channel Angular Pressing Equivalent Plastic Strain Equal Channel Angular Extrusion Radial Line Corner RadiusPreview
Unable to display preview. Download preview PDF.
References
- 1.Segal V M, “Material Processing by simple shear”, Mater. Sci. Eng., A197 (1995) 157.Google Scholar
- 2.Iwahashi Y, Wang J, Horita Z, Nemoto M and Langdon T G, “Principles of equal channel angular pressing of ultra-fine grained materials”, Scripta Mater., 35(2) (1996) 143.CrossRefGoogle Scholar
- 3.Yi-Lang and Shyong Lee, “Finite element analysis of strain conditions after equal channel angular extrusion”, J. Mater. Tech., 140 (2003). 583.CrossRefGoogle Scholar
- 4.Li S, Bourke M A M, Beyerlein I J, Alexander D J and Clausen B, “Finite element analysis of the plastic deformation zone and working load in equal channel angular extrusion”, J. Mater. Eng. A382 (2004) 217.Google Scholar
- 5.Hl-Heon Son, Jeong-Ho Lee and Yong-Taek Im, “Finite element investigation of equal channel angular extrusion with back pressure”, J. Mater. Proc. Tech., 171 (2006) 480.CrossRefGoogle Scholar
- 6.Luis-Perez C J, Luri-Irigoyen R and Gaston-Ochao D, “Finite element modeling of an Al-Mn alloy by equal channel angular extrusion”, J. Mater. Proc. Tech., 153–154 (2004) 846.CrossRefGoogle Scholar
- 7.Fuqian Yang, Aditi Saran and Okazaki K., “Finite element simulation of equal channel angular extrusion”, J. Mater. Proc. Tech., 166 (2005) 71.CrossRefGoogle Scholar
- 8.Kim J K and Kim W J, “Analysis of deformation behavior in 3D during equal channel angular extrusion”, J. Mater. Proc. Tech., 176 (2006) 260.CrossRefGoogle Scholar
- 9.Su C W, Lu L and Lai M O, “3D finite element analysis on strain uniformity during ECAP process”, Mater. Sci. Tech., 23–6 (2007) 27.Google Scholar
- 10.Hong Jiang, Zhiguo Fan and Chaoying Xie, “3D finite element simulation of deformation behavior of CP-Ti and working load during multi-pass equal channel angular extrusion”, Mater. Sci. Eng. A 485 (2008) 409.CrossRefGoogle Scholar
- 11.Tao Suo, Yulong Li, Qiong Deng and Yuanyong Liu, “Optimal pressing route for continued equal channel angular pressing by finite element analysis”, Mater Sci. Eng. A, 466 (2007) 166.CrossRefGoogle Scholar
- 12.Patil Basavaraj V, Uday Chakkingal and Prasanna Kumar T S, “Study of channel angle influence on material flow and strain inhomogeneity in equal channel angular pressing using 3D finite element simulation”, J. Mater. Proc. Tech., (2008) in Press.Google Scholar
- 13.ABAQUS User’s Manual, Version 6.5.1, Hibbitt, Karisson & Sorensen (2006).Google Scholar
- 14.Nagarajan D, “Processing of an aluminium alloy by ECAE prior to cold extrusion”, M.S. Thesis, IIT Madras, India.Google Scholar