On twist springback in advanced high-strength steels

被引：45

作者：

Li, Hongzhou ^{[1
]}

Sun, Guangyong ^{[1
,2
]}

Li, Guangyao ^{[1
]}

Gong, Zhihui ^{[1
]}

Liu, Dihui ^{[1
]}

Li, Qing ^{[2
]}

机构：

[1] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China

[2] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia

来源：

MATERIALS & DESIGN | 2011年 / 32卷 / 06期

关键词：

Ferrous metals and alloys; Stamping and punching; Mechanical; FINITE-ELEMENT-ANALYSIS; SIDE-WALL CURL; MARTENSITIC-TRANSFORMATION; SHEET METALS; SIMULATION; PREDICTION; BEHAVIOR; DEFORMATION; DESIGN; COMPENSATION;

D O I：

10.1016/j.matdes.2011.02.035

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The sheet metal components made of advanced high-strength steel (AHSS) become fairly attractive in reducing weight and enhancing operational performance of products. However the corresponding forming process often generates more severe springback. This paper aims to investigate the behavior of twist springback in advanced high strength sheet components, where a twist rail was considered and the corresponding die and measurement tool were developed. Finite element model of the twist rail was first validated through a try-out test and then is used to carry out a parametric study on the twist springback. The results lead to an in-depth understanding of how the design and process parameters, such as transition ratio of cross-section width, corner angle, drawbead depth and material strength grade, affect the twist springback, thereby providing some insights into sensitivity analysis for the design of products and corresponding processes. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：3272 / 3279

页数：8

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