Paper Title:
FE Simulation of Vacuum Hot Bulge Forming Process of BT20 Ti-Alloy Cylindrical Workpiece
  Abstract

The vacuum hot bulge forming has been used in aerospace industry to manufacture cylindrical workpiece with improved mechanical properties and reduced fabrication cost. Vacuum hot bulge forming is based on the material soften and the stress relaxation theory. Different from other metal forming techniques, deformation of the workpiece takes place well below yield point and the amount of plastic deformation is directly relaxed to heating temperature and holding time. In this paper, a two-dimension thermo-mechanical coupled finite element model was developed. In this model, nonlinear radiation heat transfer and thermal physical properties of material depending on temperature were considered. This paper carried out numerical simulation of vacuum hot bulge forming of BT20 Ti-alloy cylindrical workpiece by using finite element software MSC.Marc. The temperature field, deformation field and stress field of hot bulge forming of BT20 Ti-alloy cylindrical workpiece were calculated. Numerical simulation results were accorded with experimental ones, which provided for the practice production as theory bases.

  Info
Periodical
Key Engineering Materials (Volumes 392-394)
Edited by
Guanglin Wang, Huifeng Wang and Jun Liu
Pages
366-369
DOI
10.4028/www.scientific.net/KEM.392-394.366
Citation
M. W. Wang, L. W. Zhang, "FE Simulation of Vacuum Hot Bulge Forming Process of BT20 Ti-Alloy Cylindrical Workpiece", Key Engineering Materials, Vols. 392-394, pp. 366-369, 2009
Online since
October 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: Xin Wu Ma, Guo Qun Zhao, Wen Juan Li
Chapter 5: Materials Processing and Chemical Technologies
Abstract:A new method for determination of friction coefficient in sheet metal forming of Mg alloy AZ31B is presented in this paper. The method is...
430
Authors: J. Mulder, Henk Vegter, A.H. van den Boogaard
Chapter 1: Formability of Metallic Materials
Abstract:Optical measuring systems enable a very accurate determination of the flow stress for the hydraulic bulge test. The flow stress is strain...
138
Authors: Firas Jarrar, Reem Jafar, Olga Tulupova, Farid Enikeev, Naser Al-Huniti
Chapter 5: Industrial Application
Abstract:The AA5083 alloy is already being used in applications that require lightweight construction and moderate strengths. In order to carry out...
512