Plastic instability in dual-pressure tube-hydroforming process Academic Article uri icon


  • The tube-hydroforming process has become an indispensable manufacturing technique in recent years. Successful tube hydroforming requires bulging to take place without causing any type of instability such as bursting, wrinkling or buckling. The dual-pressure tube-hydroforming process was introduced to achieve a favorable tri-axial stress state in the deformation process. In this paper, the effect of applying counter pressure on plastic instability of thin-walled tubes is analyzed. It is concluded that in dual-pressure tube hydroforming, the onset of plastic instability is delayed and the ductility of the metal is increased. 2005 Elsevier Ltd. All rights reserved.

published proceedings


author list (cited authors)

  • Jain, N., & Wang, J.

citation count

  • 25

complete list of authors

  • Jain, N||Wang, J

publication date

  • January 2005