Springback and time-dependent springback of 1Cr18Ni9Ti stainless steel tubes under bending

被引：35
作者：
E, Daxin [1 ]
Liu, Yafei [1 ]
机构：
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
来源：
MATERIALS & DESIGN | 2010年 / 31卷 / 03期
关键词：
Forming; Ferrous metals and alloys; Plastic behavior; FINITE-ELEMENT-ANALYSIS; V-DIE; SHEET; BACK;
D O I：
10.1016/j.matdes.2009.09.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, the springback and time-dependent springback of 1Cr18Ni9Ti stainless steel tubes subject to bending is explored. Rotary draw bending tests have been carried out and marked time-dependent springback has been observed. A novel model in which time-dependent springback is associated with strain hardening is presented as an attempt to analyze this behavior. Using this model, the formulae of time-dependent springback, time-independent springback and total springback are derived. In addition, finite element analysis has been performed to investigate the stress distribution as well as to calculate the magnitude of springback. Comparison between analytical and experimental results shows good agreement. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1256 / 1261
页数：6
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