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Proceedings Paper

A study on laser weldability and formability of high thickness ratio tailor welded blanks
Author(s): Guangwei Wang; Guohua Li; Yan Cai; Xueming Hua; Yixiong Wu
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Paper Abstract

Cold-rolled steel sheets of thickness ranging from 0.7 (with zinc coating) to 2.0 mm were used to produce tailor laser welded blanks (TLWBs) with various thickness ratios, the maximum of which reaches 2.86:1. In this study, the laser weldability and formability of the TLWBs, as well as the mechanical characteristics of the weld zones, were analyzed experimentally under the effects of various thickness ratios of TWLBs. The results showed that the hardness of the weld beads are 1.9 times higher than respective parent metal at most but the formability of TLWBs as evaluated by the Erichsen cup test was lower than that of the parent material.

Paper Details

Date Published: 4 January 2008
PDF: 7 pages
Proc. SPIE 6825, Lasers in Material Processing and Manufacturing III, 682509 (4 January 2008); doi: 10.1117/12.758725
Show Author Affiliations
Guangwei Wang, Shanghai Jiaotong Univ. (China)
Guohua Li, Shanghai Jiaotong Univ. (China)
Yan Cai, Shanghai Jiaotong Univ. (China)
Xueming Hua, Shanghai Jiaotong Univ. (China)
Yixiong Wu, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 6825:
Lasers in Material Processing and Manufacturing III
ShuShen Deng; Akira Matsunawa; Xiao Zhu, Editor(s)

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