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Title: Warm forming simulation of titanium tailor-welded blanks with experimental verification

Abstract

The simulation of the forming process of Ti-TWBs at elevated temperatures using finite element analysis to determine the optimum forming conditions of Ti-TWBs is presented in this paper. For verification of the simulation results, titanium alloy (Ti-6Al-4V) was selected for the first instance to prepare the specimen of Ti-TWBs. The thickness combinations of 0.7mm/1.0mm and in widths of 20mm, 90mm and 110mm were used. A specific tooling system with temperature control device was developed to the forming of Ti-TWBs at 550 deg. C. A cylindrical punch of 50mm diameter was designed and manufactured. Different forming parameters (i.e. traveling distance of the punch and the stroke as well as the time of each forming process) and material characteristics under various temperatures were measured. In addition, the true stress and strain values by tensile test as well as the major and minor strain distributions of forming Ti-TWBs at elevated temperatures by Swift Forming test were carried out and applied as input into the finite element program. The simulation results indentify failure locations and Limit Dome Height (LDH) of Ti-TWBs at elevated temperatures and were compared with the measured ones. Finally, the optimum forming conditions of Ti-TWBs were determined based on the experimentallymore » verified simulation results.« less

Authors:
;  [1];  [2]
  1. Department of Industrial and Systems Engineering, the Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China)
  2. Department of Mechanical Engineering, University of Michigan-Dearborn, 4901, Evergreen Road, Dearborn, Michigan (United States)
Publication Date:
OSTI Identifier:
21057382
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 908; Journal Issue: 1; Conference: NUMIFORM '07: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2741041; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COMPUTERIZED SIMULATION; CYLINDRICAL CONFIGURATION; DISTRIBUTION; FAILURES; FINITE ELEMENT METHOD; MATERIALS WORKING; STRAINS; STRESSES; TEMPERATURE CONTROL; TEMPERATURE DEPENDENCE; TESTING; TITANIUM; TITANIUM ALLOYS

Citation Formats

Lai, C. P., Chan, L. C., and Chow, C. L.. Warm forming simulation of titanium tailor-welded blanks with experimental verification. United States: N. p., 2007. Web. doi:10.1063/1.2741041.
Lai, C. P., Chan, L. C., & Chow, C. L.. Warm forming simulation of titanium tailor-welded blanks with experimental verification. United States. doi:10.1063/1.2741041.
Lai, C. P., Chan, L. C., and Chow, C. L.. Thu . "Warm forming simulation of titanium tailor-welded blanks with experimental verification". United States. doi:10.1063/1.2741041.
@article{osti_21057382,
title = {Warm forming simulation of titanium tailor-welded blanks with experimental verification},
author = {Lai, C. P. and Chan, L. C. and Chow, C. L.},
abstractNote = {The simulation of the forming process of Ti-TWBs at elevated temperatures using finite element analysis to determine the optimum forming conditions of Ti-TWBs is presented in this paper. For verification of the simulation results, titanium alloy (Ti-6Al-4V) was selected for the first instance to prepare the specimen of Ti-TWBs. The thickness combinations of 0.7mm/1.0mm and in widths of 20mm, 90mm and 110mm were used. A specific tooling system with temperature control device was developed to the forming of Ti-TWBs at 550 deg. C. A cylindrical punch of 50mm diameter was designed and manufactured. Different forming parameters (i.e. traveling distance of the punch and the stroke as well as the time of each forming process) and material characteristics under various temperatures were measured. In addition, the true stress and strain values by tensile test as well as the major and minor strain distributions of forming Ti-TWBs at elevated temperatures by Swift Forming test were carried out and applied as input into the finite element program. The simulation results indentify failure locations and Limit Dome Height (LDH) of Ti-TWBs at elevated temperatures and were compared with the measured ones. Finally, the optimum forming conditions of Ti-TWBs were determined based on the experimentally verified simulation results.},
doi = {10.1063/1.2741041},
journal = {AIP Conference Proceedings},
number = 1,
volume = 908,
place = {United States},
year = {Thu May 17 00:00:00 EDT 2007},
month = {Thu May 17 00:00:00 EDT 2007}
}