Paper Title:
Three Dimensional Upper Bound Modelling for Extrusion of Round-to-Octagon Section Using Linearly Converging Die
  Abstract

The extrusion of section from round billet poses a great challenge for theoretical modeling of the process using upper bound method. The greatest difficulty in three-dimensional upper bound method is to determine kinematically admissible velocity field. The SERR (Spatial Elementary Rigid Region) technique is fairly applicable for analyzing extrusion of sections having re-entrant corners. A modified version of SERR technique has been used for extrusion of octagon sections from round billet through a linearly converging die. The circular cross section of the round billet is approximated by a regular polygon of equal area. The extrusion pressure has been computed for different boundary condition at the die billet interface. The optimum die geometry has been determined.

  Info
Periodical
Edited by
A. Erman Tekkaya and Nooman Ben Khalifa
Pages
189-196
DOI
10.4028/www.scientific.net/KEM.424.189
Citation
K. P. Maity, A. K. Rout, "Three Dimensional Upper Bound Modelling for Extrusion of Round-to-Octagon Section Using Linearly Converging Die", Key Engineering Materials, Vol. 424, pp. 189-196, 2010
Online since
December 2009
Keywords
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: Yan Li, Xiao Hong Chen, Ping Liu, Lin Hua Gao, Bao Hong Tian
Abstract:The behavior of plastic deformation of Cu-15Cr-0.1Zr in-situ composite under different degree of cold drawing deformation was analyzed by...
2191
Authors: Jing Jing Fang, Yu Ding
Abstract:Distortions are inevitable when flattening is applied to an irregular surface. This study presents a meshing energy model and evaluates the...
1223
Authors: Liang Chu, Li Jun Shi, Yan Bi, Da Sen Bi
Abstract:In this paper, the nosing process of metal tube with a conical die is investigated using the finite element method, and a series of...
1444