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An approach to improve thickness uniformity of TA15 tubular part formed by gas bulging process

  • China Aerospace Science and Technology Corporation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Gas bulging with local-stretching preforming is presented to form titanium alloy tubular part with small radius. In ordinary gas bulging process, local thinning occurs at the corners with small radius and produces dangerous position of the component. In the paper, a preforming process so-called local-stretching is applied before gas bulging. Finite element simulation and experiments were carried out to verify the effectiveness of the preforming and gas bulging process for the tubular component of titanium alloy TA15. During the local-stretching preforming, the material near the corner was kept almost rigid, but the material far away from the corner experienced stretching deformation and thickness thinning. Then, during gas bulging, the material near the corner experienced thinning deformation. So, the thickness uniformity of the final component was improved effectively.

Original languageEnglish
Title of host publicationAdvances in Manufacturing Science and Engineering
Pages651-657
Number of pages7
DOIs
StatePublished - 2013
Event4th International Conference on Manufacturing Science and Engineering, ICMSE 2013 - Dalian, China
Duration: 30 Mar 201331 Mar 2013

Publication series

NameAdvanced Materials Research
Volume712-715
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Manufacturing Science and Engineering, ICMSE 2013
Country/TerritoryChina
CityDalian
Period30/03/1331/03/13

Keywords

  • Gas bulging
  • Gas forming
  • Preforming
  • Titanium alloy
  • Tube hydroforming

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