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A Method for Prediction of Forming Strain for Cold Stamping Formed Head Made of S30408 Austenitic Stainless Steel

[+] Author Affiliations
Xiaobo Zhu, Cunjian Miao, Li Ma

Zhejiang University, Hangzhou, China

Paper No. PVP2013-97768, pp. V005T11A024; 10 pages
doi:10.1115/PVP2013-97768
From:
  • ASME 2013 Pressure Vessels and Piping Conference
  • Volume 5: High-Pressure Technology; ASME NDE Division; Rudy Scavuzzo Student Paper Symposium
  • Paris, France, July 14–18, 2013
  • Conference Sponsors: Pressure Vessels and Piping Division, Nondestructive Evaluation Engineering Division
  • ISBN: 978-0-7918-5569-0
  • Copyright © 2013 by ASME

abstract

Large deformation takes place in the forming process of cold stamping formed head. Such large forming strain induces large content of martensite transformation and then decreases the plasticity and ductility in transformation regions, which will affect the safety of head used under low temperature. Therefore, having an accurate prediction of forming strain can provide the basis for safe use of cold stamping formed heads. In this paper, a method for predicting forming strain is put forward. A prediction model is established through cold stamping forming test and FEA. Meanwhile, a forming strain prediction interval based on statistic analysis is also established, which is then proved to have a good prediction of foming strain for cold stamping formed head made of S30408 metastable ASS through test verification.

Copyright © 2013 by ASME

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