Title: Process simulation during the isothermal extrusion of Ti–6.0Al–2.0Zr–1.0Mo–1.0V alloy by 3D FEM

Authors: Miaoquan Li, Li Long

Addresses: School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China. ' School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China

Abstract: In this paper, the flow stress model for the high temperature deformation of Ti–6.0Al–2.0Zr–1.0Mo–1.0V alloy has been established according to the isothermal compression results at a deformation temperature of 800–1050°C, strain rate of 0.01–70.0 s−1. Effects of the process parameters, including deformation temperature, upper ram velocity, shear factor of friction and corner radius, on the strain and stress distribution have been studied during the isothermal extrusion of Ti–6.0Al–2.0Zr–1.0Mo–1.0V alloy. The simulation results show that the deformation temperature, the upper ram velocity and the corner radius of die have significant effect on the strain and stress distribution and the deformation load.

Keywords: titanium alloys; isothermal extrusion; thermo-mechanical analysis; FEM; finite element method; simulation; flow stress modelling; temperature deformation; strain; deformation temperature; upper ram velocity; shear factor of friction; corner radius.

DOI: 10.1504/IJMTM.2008.017488

International Journal of Manufacturing Technology and Management, 2008 Vol.14 No.1/2, pp.100 - 109

Published online: 12 Mar 2008 *

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