Finite element modeling of residual stresses in machining induced by cutting using a tool with finite edge radius

被引：142

作者：

Ee, KC ^{[1
]}

Dillon, OW ^{[1
]}

Jawahir, IS ^{[1
]}

机构：

[1] Univ Kentucky, Dept Mech Engn, Lexington, KY 40506 USA

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2005年 / 47卷 / 10期

关键词：

finite element method; machining; residual stresses;

D O I：

10.1016/j.ijmecsci.2005.06.001

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A thermal elastic-viscoplastic finite element model is used to evaluate the residual stresses remaining in a machined component. An improvement in the accuracy of the predicted residual stresses is obtained by: (a) using a modified Johnson-Cook material model that is augmented by a linearly elastic component to describe the material behavior as non-Newtonian fluid; (b) using a remeshing scheme to simulate the material flow in the vicinity of the rounded cutting tool edge without the use of a separation criterion; (c) properly accounting for the unloading path, and (d) considering the thermomechanical coupling effect on deformation. Case studies are performed to study the influence of sequential cuts, cutting conditions, etc., on the residual stresses induced by orthogonal machining. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1611 / 1628

页数：18

共 46 条

[41] A FINITE-ELEMENT MODEL OF ORTHOGONAL METAL-CUTTING [J].