Investigation on the TRIP Steel Sheet Forming Processes with Respect to Punch Speed Loading-Paths

Abstract:

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Loading path is one of importance factors that influence the formability of sheet forming process. In this study, the effect of punching speed loading paths (PSLP) on forming and spring-back processes of TRIP (transformation induced plasticity) steel has been investigated. Four kinds of loading paths with three punch speeds are introduced to verify the cup drawing and U-channel spring-back processes based on a constitutive model accompanying the strain-induced martensite transformation. The results show that higher punch speed results in the thickness uniformity of drawing cup and the spring-back angle of stamping U-channel increased with the same loading path. Furthermore, a given loading path (C4) not only increases the minimum thickness of cup but also decreases the spring-back angle of U-channel.

Info:

Periodical:

Advanced Materials Research (Volumes 154-155)

Edited by:

Zhengyi Jiang, Xianghua Liu and Jinglong Bu

Pages:

667-673

DOI:

10.4028/www.scientific.net/AMR.154-155.667

Citation:

W. J. Dan et al., "Investigation on the TRIP Steel Sheet Forming Processes with Respect to Punch Speed Loading-Paths", Advanced Materials Research, Vols. 154-155, pp. 667-673, 2011

Online since:

October 2010

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Price:

$35.00

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