Paper Title:
Wrinkling Study in Tube Hydroforming Process
  Abstract

Tube Hydroforming Process (THF) is heavily affected by the pressure-displacement diagram, and adjustment of the raw tube. Three common defects of the process are bursting, buckling and wrinkling. In this work, the leading conditions to wrinkling defect have been studied. Proper criteria are required to predict wrinkling condition, and to quantify wrinkling when subjected to various pressure-displacement diagrams. A variety of criteria have been presented by researchers, most of which are suitable to a specific geometry. In current work, two criteria are considered namely, the strain difference and the radius velocity. At first an accurate FEM (Finite Element Model) model of the process have been established and validated. Then based on a number of experiments with different diagram, the process have been simulated and analyzed. According to experiments imbalances between pressure and displacement, improper sitting of tube in the die, poor vacation of the tube and the existence of external tiny particle inside the die, are the reason of wrinkling criterion in the tube. The Response Surface Method (RSM) has been used to model the responses from the finite element analysis. The behavior of the process has been predicted using this model.

  Info
Periodical
Main Theme
Edited by
J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens
Pages
151-158
DOI
10.4028/www.scientific.net/KEM.473.151
Citation
K. Khalili, S. E. Eftekhari Shahri, P. Kahhal, M. S. Khalili, "Wrinkling Study in Tube Hydroforming Process", Key Engineering Materials, Vol. 473, pp. 151-158, 2011
Online since
March 2011
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: Rimma Lapovok
Abstract:Equal Channel Angular Extrusion (ECAE) has become a very popular tool for studying the evolution of microstructure and properties under...
37
Authors: S.M.H. Seyedkashi, Golam Hosein Liaghat, Hassan Moslemi Naeini, M. Hoseinpour Gollo
Abstract:Tube hydroforming technology is still considered a new technique growing fast in automotive and aircraft industries. Many researches on all...
133
Authors: Yin Fang Jiang, Lei Fang, Zhi Fei Li, Zhen Zhou Tang
Abstract:As a new lightweight material and new technique,Tailor Rolled Blanks has a good prospect in energy-saving environmental protection and the...
488
Authors: Mohsen Loh-Mousavi, Amir Masoud Mirhosseini, Ghasem Amirian
Abstract:In recent years, tube hydroforming has been applied in automobile and airplane industries, to decrease weight. In general, the determination...
5
Authors: Abdelkhalak El Hami, Bouchaib Radi
Abstract:In this paper, an original method is presented for evaluating the probability of failure in a precise manner in the tube hydroforming process...
52