Paper Title:
Mechanical Solutions for Hot Forward Extrusion under Plane Strain Conditions by upper Bound Method
  Abstract

This paper present a study focused on hot forward extrusion by upper bound method. In particular, hot forward extrusion of plates through square face dies under plane strain conditions. Slater defines the models used for large fractional reduction. Different models have been taken in account; they are dissimilar in relation to the dead metal zone (if covers or not the entire die face, partially or totally). Triangular rigid patterns of velocity discontinuities have been validated by analytical methods and a range of use for the selected configurations has been established. This methodology has been applied to other process with good results. Thus, the mechanical parameters analysed are fractional reduction, dead metal zone, length die and friction. Finally the calculation of the energy has been achieved by upper bound method. The results allow researching an optimisation of use of upper bound method in hot forward extrusion.

  Info
Periodical
Edited by
Luca Tomesani and Lorenzo Donati
Pages
201-208
DOI
10.4028/www.scientific.net/KEM.367.201
Citation
R. Domingo, A.M. Camacho, E.M. Rubio Alvir, M.A. Sebastián, "Mechanical Solutions for Hot Forward Extrusion under Plane Strain Conditions by upper Bound Method", Key Engineering Materials, Vol. 367, pp. 201-208, 2008
Online since
February 2008
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: A. Krishnaiah, K. Kumaran, Chakkingal Uday
Abstract:Equal channel angular extrusion (ECAE) is a severe plastic deformation (SPD) method for obtaining bulk nanostructured materials. The ECAE die...
1574
Authors: H. Haghighat, D. Almasi
Abstract:The process of lateral extrusion of gear-like components with radial tooth profile has been studied in this paper. The material flow in...
72
Authors: Lei Cheng, Shui Sheng Xie, You Feng He, Guo Jie Huang, Yao Fu
Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:FEM simulation of aluminum profiles in porthole die extrusion process using Lagrange mesh description will inevitably bring mesh...
290
Authors: Sören Müller, Jerome Muehlhause, J. Maier, Pavel Hora
Abstract:Of the various boundary conditions that are relevant for the correct modeling of the extrusion process the realistic representation of the...
113
Authors: Nachiket Keskar, Vikrant Raizada, Vaibhaw Kumar, Sanjay Kumar Jha, Dinesh Srivastava, Gautam Kumar Dey, Nudurupati Saibaba
Chapter 8: Mechanical Processing
Abstract:The hot extrusion of Zr-2.5Nb alloy has been simulated using an FEM based software and validated by the experimental measurements during real...
371