Cross-sectional distortion behaviors of thin-walled rectangular tube in rotary-draw bending process

被引：35

作者：

Zhao Gang-yao ^{[1
]}

Liu Yu-li ^{[1
]}

Yang He ^{[1
]}

Lu Cai-hong ^{[1
]}

机构：

[1] NW Polytech Univ, Coll Mat Sci & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷 / 03期

基金：

中国国家自然科学基金;

关键词：

thin-walled rectangular tube; aluminum alloy 3A21; rotary-draw bending; cross-sectional distortion; die clearance; ALUMINUM EXTRUDED TUBES; QUALITY;

D O I：

10.1016/S1003-6326(09)60166-7

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The cross-sectional distortion usually appears during rotary-draw bending process of thin-walled rectangular tube with small bending radius. To study the cross-sectional distortion of the tube, a three-dimensional finite-element model of the process was developed based on ABAQUS/Explicit code and its reliability was validated by experiment. Then, the cross-sectional distortion behaviors of the tube were investigated. The results show that a zone of larger circumferential stress appears on the tube when bending angle reaches 30 degrees. And in the larger circumferential stress zone, the sagging phenomenon is produced obviously. The maximum cross-sectional distortion is located in the larger circumferential stress zone and the angle between the plane of maximum cross-sectional distortion and the bending reference plane is about 50 degrees. The position of the maximum cross-sectional distortion keeps almost unchanged with the variation of the clearances between dies and tube.

引用

页码：484 / 489

页数：6

共 16 条

[1] Simple analysis for bend-stretch forming of aluminum extrusions [J].

Corona, E .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2004, 46 (03) :433-448

[2]

COSTELLO F, 1994, FABRICATOR, V24, P28

[3]

Gu RJ, 2005, T NONFERR METAL SOC, V15, P1264

[4] Effect of yield surface evolution on bending induced cross sectional deformation of thin-walled sections [J].

Kyriakides, S ;

Corona, E ;

Miller, JE .

INTERNATIONAL JOURNAL OF PLASTICITY, 2004, 20 (4-5) :607-618

[5] Forming characteristics of thin-walled tube bending process with small bending radius [J].

Li Heng ;

Yang He ;

Zhan Mei ;

Gu Rui-Jie .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2006, 16 (SUPPL.) :S613-S623

[6] The roles of serum leptin concentration and polymorphism in leptin receptor gene at codon 109 in breast cancer [J].

Liu, Chien-Liang ;

Chang, Yuan-Ching ;

Cheng, Shih-Ping ;

Chern, Schu-Rern ;

Yang, Tsen-Long ;

Lee, Jie-Jen ;

Guo, Ing-Cherng ;

Chen, Chih-Ping .

ONCOLOGY, 2007, 72 (1-2) :75-81

[7]

Liu Yuli, 2008, China Mechanical Engineering, V19, P1972

[8] On bend-stretch forming of aluminum extruded tubes - II: analysis [J].

Miller, JE ;

Kyriakides, S ;

Corona, E .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (05) :1319-1338

[9] Three-dimensional effects of the bend-stretch forming of aluminum tubes [J].

Miller, JE ;

Kyriakides, S .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2003, 45 (01) :115-140

[10] On bend-stretch forming of aluminum extruded tubes - I: experiments [J].

Miller, JE ;

Kyriakides, S ;

Bastard, AH .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (05) :1283-1317

← 1 2 →