| The effect of tube dimensions on optimized pressure and force loading paths in tube hydroforming process
S. M. H. Seyedkashi, H. Moslemi Naeini, G. H. Liaghat, M. Mosavi Mashadi, M. Mirzaali, K. Shojaee and Y. H. Moon*
The Journal of Mechanical Science and Technology, vol. 26, no. 6, pp.1817-1822, 2012
Abstract : The precise control of internal pressure and axial force loading paths significantly affects the final product quality. In this study, the effect
of tube dimensions on the pressure and force loading paths in tube hydroforming process is investigated by using simulated annealing
optimization method linked to a commercial finite element code. The optimized loading paths, obtained for different tube geometries
with a constant expansion ratio, are then compared. The effects of initial diameter and wall thickness on shape conformation, optimal
internal pressure and axial force (or feed) are discussed on the basis of optimal loading paths. Several guidelines in prediction and determination
of tube hydroforming parameters are obtained by optimization analysis.
Keyword : Tube hydroforming process; Loading path optimization; Simulated annealing method |
