Paper Title:
Wrinkling Identification and Wrinkle Distribution of a Tube in Hydroforming with Radial Crushing
  Abstract

Hollow parts with variable cross-section are widely used in the area of automotive and aerospace industries due to their excellent properties. Wrinkling is one of the most common forms of instability in the process of manufacturing the parts. The minimum curvature of the cross-section profile of bugled workpieces is proposed in this paper to as a wrinkling indicator to characterize the form and extent of the wrinkle. The wrinkle distribution of 1Cr13Mn9Ni1N stainless steel tube in hydroforming with radial crushing under linear and constant hydraulic pressures is analyzed and the influence of the bulging methods on the wrinkling is investigated via finite element simulation. The results indicate that wrinkling under constant hydraulic pressure is more obvious than that under linear one, wrinkling in hydroforming with radial crushing is more serious than that in free hydro-bugling, wrinkling on the cross-section away from the middle cross-section is more distinct and the wrinkling on the side edge is obvious than that on the bottom of the bugled workpiece.

  Info
Periodical
Advanced Materials Research (Volumes 291-294)
Chapter
Materials Forming
Edited by
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
Pages
662-667
DOI
10.4028/www.scientific.net/AMR.291-294.662
Citation
X. F. Liu, L. F. Yang, Y. X. Zhang, "Wrinkling Identification and Wrinkle Distribution of a Tube in Hydroforming with Radial Crushing", Advanced Materials Research, Vols. 291-294, pp. 662-667, 2011
Online since
July 2011
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Price
$32.00
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