Paper Title:
Forming Response of Ultra High Strength Steel Sheet to Stamping Speed during Hot Forming
  Abstract

Stamping speed is an important parameter in sheet metal forming especially in hot forming. In this study, hot forming of a U-shaped part made of ultra high strength boron steel (22MnB5) sheet is simulated with solid elements. The mechanical properties of 22MnB5 steel sheet and the key process parameters are introduced in detail. Emphasis is laid on the forming response of the boron steel sheet to stamping speeds of 3.25m/s, 0.325m/s and 0.0325m/s. The mechanism of stamping speed acting on hot formability and temperature field of the stamped part is analyzed. It is demonstrated that stamping speed affects both formability and the heat transferred from blank to tools and to environment during hot forming. And the coupling effect of material properties, the heat produced during plastic deformation and heat boundary condition decides the formability and temperature field. An appropriate stamping speed is more important for hot forming than that for common cold forming.

  Info
Periodical
Advanced Materials Research (Volumes 160-162)
Edited by
Guojun Zhang and Jessica Xu
Pages
123-129
DOI
10.4028/www.scientific.net/AMR.160-162.123
Citation
H. Y. Yu, L. Bao, Y. Z. Deng, W. Cao, "Forming Response of Ultra High Strength Steel Sheet to Stamping Speed during Hot Forming", Advanced Materials Research, Vols. 160-162, pp. 123-129, 2011
Online since
November 2010
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Price
$32.00
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