A finite element model for hydrodynamic lubrication of cold extrusion with frictional boundary condition

被引：4

作者：

Yang, HB

Peng, YH

Ruan, XY

Liu, MX

机构：

[1] Shanghai Jiao Tong Univ, Natl Die & Mold CAD Engn Res Ctr, Shanghai 200030, Peoples R China

[2] Hefei Univ Technol, Sch Mat Sci & Engn, Hefei, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2005年 / 161卷 / 03期

关键词：

finite element method; model of hydrodynamic lubrication; cold extrusion; frictional boundary condition;

D O I：

10.1016/j.jmatprotec.2004.07.080

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, based on elastic-plastic hydrodynamic lubrication theory and metal-forming mechanism, a model of hydrodynamic lubrication during cold extrusion is established. The frictional boundary condition during rigid-plastic finite element simulation of cold extrusion is dealt with using the proposed model. In addition, the distribution of strain in the billet during cold extrusion is analyzed by FEM. The numerical result is discussed and compared with the experimental result. © 2004 Elsevier B.V. All rights reserved.

引用

页码：440 / 444

页数：5

共 9 条

[1] 2D and 3D simulation of complex multistage forging processes by use of adaptive friction coefficient [J].