Paper Title:
Analysis of Optimal Vertical in Angular U-Bending Process
  Abstract

This study aims to analyze the effects of angular U-bending process on the springback of metal sheets. Based on Updated Lagrangian Formulation (ULF), the 3D incremental elastic-plastic Finite Element Method was inferred to simulate the U-bending process of metal sheets. The die/blank holder profile with angles of α=-4°, α=-2°, α=0°, α=2°, α=4° and die/punch profile with radiuses of Rp=Rd=6.0mm were analyzed to determine the influence of tool angles on the springback. With different tool angles to proceed the U-bending process of metal sheets, it is found that the larger or smaller die angles, the more springback magnitude. When perpendicular U-sheets are required, θ1 of the U-sheet presents 90 degree on the tool angle α=-1.2° and θ2 shows 90 degrees on the tool angle α=-0.4°. The aim of this study is to investigate the effects of angle variables on the springback in the U-bending process and to obtain useful data from the industrial field.

  Info
Periodical
Chapter
Chapter 3: Materials Forming/Machining/Joining
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
346-349
DOI
10.4028/www.scientific.net/AMR.337.346
Citation
T. C. Chen, "Analysis of Optimal Vertical in Angular U-Bending Process", Advanced Materials Research, Vol. 337, pp. 346-349, 2011
Online since
September 2011
Authors
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Price
$32.00
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