Prediction of forming limit diagrams using the modified M-K method in hydroforming of aluminum tubes

被引：12
|
作者：
Hashemi, R. [1 ]
Madoliat, R. [1 ]
Afshar, A. [1 ]
机构：
[1] Iran Univ Sci & Technol, Sch Mech Engn, Tehran, Iran
来源：
INTERNATIONAL JOURNAL OF MATERIAL FORMING | 2016年 / 9卷 / 03期
基金：
美国国家科学基金会;
关键词：
Tube Hydroforming; M-K Method; Forming limit diagram; Aluminum; BURSTING FAILURE PREDICTION; THICKNESS NORMAL STRESS; STRAIN PATH; CURVE;
D O I：
10.1007/s12289-014-1207-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The purpose of this study is to predict forming limit diagrams (FLDs) for AA6063 and AA6065 aluminum seamless extruded tubes. The Modified Marciniak and Kuczynski (M-K) method is used with Barlat's 1989 anisotropic yield function and Voce equation. Furthermore, a new calibration method for FLD determination based on the modified M-K method is also applied. The predicted forming limits correlate well with experimental data. It is shown that in comparison to other methods, this method is able to predict necking in tube hydroforming with more accuracy. Therefore, this method can be used to predict bursting in a wide range of practical tube hydroforming of aluminum alloys.
引用
收藏
页码：297 / 303
页数：7
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