Effects of friction laws on metal forming processes

被引：93
|
作者：
Joun, M. S. [1 ,2 ]
Moon, H. G.
Choi, I. S. [3 ]
Lee, M. C. [3 ]
Jun, B. Y. [3 ]
机构：
[1] Gyeongsang Natl Univ, Sch Mech & Aerosp Engn, Jinju 660701, Gyeongnam, South Korea
[2] Gyeongsang Natl Univ, Res Ctr Aircraft Parts Technol, Jinju 660701, Gyeongnam, South Korea
[3] Gyeongsang Natl Univ, Dept Mech Engn, Jinju 660701, Gyeongnam, South Korea
来源：
TRIBOLOGY INTERNATIONAL | 2009年 / 42卷 / 02期
关键词：
Bulk metal forming; Friction law; Friction-sensitive metal forming process; Coulomb friction law; Constant shear friction law; FORGING PROCESSES; ELEMENT; SIMULATION; EXTRUSION; FLOW; DIE;
D O I：
10.1016/j.triboint.2008.06.012
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, the Coulomb friction law and the constant shear friction law were compared and investigated in detail using a rigid-plastic finite element method with emphasis on their application in bulk metal forming. The ring compression test for two different materials was used to evaluate the two friction laws, and then their effects on metal flow lines and forming loads for various friction-sensitive metal forming processes including strip rolling, ring gear forging, multistep extrusion, and pipe shrinkage and expansion were investigated. It was shown that considerable differences exist between the two friction laws, especially in friction-sensitive metal forming processes. (C) 2008 Elsevier Ltd. All rights reserved.
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页码：311 / 319
页数：9
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