Paper Title:

Study on the Formability of Square Box Deep Drawing of Tailor Rolling Blanks

Periodical Key Engineering Materials (Volume 464)
Main Theme Functional Manufacturing Technologies and Ceeusro II
Edited by Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages 469-473
DOI 10.4028/www.scientific.net/KEM.464.469
Citation Yin Fang Jiang et al., 2011, Key Engineering Materials, 464, 469
Online since January, 2011
Authors Yin Fang Jiang, Lei Fang, Zhi Fei Li, Zhen Zhou Tang
Keywords Formability, Square Box Deep Drawing, Tailor Rolled Blank (TRB)
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Abstract

As a new lightweight structural sheet metal, tailor rolled blanks has a good prospect in the future development of the automobile industry, and its formability is the current research focus. We use ABAQUS software to analyze the impacts of blank holder force, thickness ratio, die radius, shape and size of sheet metal on the movement of the transition zone and thickness direction strain on the formability of square box of tailor rolled blanks in deep drawing. The results show that, generally, in the punch and side wall corner, where thinning is more serious is a dangerous rupture area, while the inner edge of flange part is prone to wrinkle. When the BHF is 140kN, the connection between the thin side and the transition zone where thinning is severe is also a dangerous area, and even more serious, likewise when the blank thickness ratio arrives at 1.4mm/0.8mm, or the blank size 260mm*260mm, thinning is very serious at the connection between the thin side and the transition zone which is a dangerous rupture area.