Finite element analysis of the effect of coefficient of friction on the drawability

被引：20

作者：

Reddy, G. Chandra Mohan ^{[1
]}

Reddy, P. V. R. Ravindra ^{[1
]}

Reddy, T. A. Janardhan ^{[2
]}

机构：

[1] CBIT, Dept Mech Engn, Hyderabad 75, Andhra Pradesh, India

[2] Osmania Univ, Coll Engn, Dept Mech Engn, Hyderabad 7, Andhra Pradesh, India

来源：

TRIBOLOGY INTERNATIONAL | 2010年 / 43卷 / 5-6期

关键词：

Deep drawing; Limit drawing ratio; Limit strains; FORMING LIMIT DIAGRAMS; PART; PREDICTION; ELIMINATION; FORMABILITY; VALIDATION; SPRINGBACK; FRACTURE;

D O I：

10.1016/j.triboint.2009.12.024

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Drawability is a term commonly used to describe the ease with which the metal can be drawn into the cups. The various measures of drawability are limit drawing ratio and the limit strains which are influenced by the parameters like tooling configurations, blank configurations, material properties, and forming conditions. Generally the drawability is limited by tearing of the cup at the punch corners. Friction plays an important role in deciding drawability in such a situation. In this work, the effect of coefficient of friction on limit drawing ratio and the limit strains are studied using an explicit finite element code LSDYNA. The model is validated by comparing force obtained by the existing experimental setup with the one obtained in simulation. The limit strains obtained from the simulation are verified by the analytical equations developed using vortex theory. The results are tallying within 0.17-8.29% error. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1132 / 1137

页数：6

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