Simulation of coupled problem of electric upsetting

被引：16

作者：

Biba, N

Lishnij, A

Vlasov, A

机构：

[1] Quantor, Moscow 117049, Russia

[2] Cent Mech Engn & Technol Inst, Moscow, Russia

[3] Moscow Bauman State Tech Univ, Moscow, Russia

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 1998年 / 80-1卷

关键词：

electric upsetting; simulation; coupled problem; finite-element model;

D O I：

10.1016/S0924-0136(98)00139-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a finite-element model of electric upsetting. It is based on a mixed formulation and provides a simulation of heat generation in conjunction with the coupled thermo-mechanical problem of non-steady-state visco-plastic material flow. The model is applied to the simulation of electric upsetting of a round bar. Numerical experiments have shown an adequate sensitivity of the model to processing parameter variation and good agreement with the results of industrial experiments. The billet has an 'onion' shape and the specific temperature distribution obtained as a result of the simulation can then be used for the subsequent simulation of the conventional forming operation in closed dies that is important for the development of technology and improvement of product quality. (C) 1998 Published by Elsevier Science S.A. All rights reserved.

引用

页码：184 / 187

页数：4