Studies of the mechanisms for buckling and waving in aluminum extrusion by use of a Lagrangian FEM software

被引：21
作者：
Halvorsen, F
Aukrust, T
机构：
[1] SINTEF, Mat & Chem, N-0314 Oslo, Norway
[2] Univ Oslo, Oslo, Norway
来源：
INTERNATIONAL JOURNAL OF PLASTICITY | 2006年 / 22卷 / 01期
关键词：
aluminium extrusion; buckling; waving; viscoplasticity; FEM;
D O I：
10.1016/j.ijplas.2005.03.009
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The background for this paper is the increasing demands from the extrusion market on tighter geometric tolerances on extruded sections. This calls for an improved understanding of the underlying mechanisms causing shape variations. The focus in this paper has been on buckling or waving of extruded flat sections. In order to study these basic mechanisms a Lagrangian FEM software, MSC SuperForm, has been utilized. The flow conditions have been altered by only varying the feeder geometry. Extrusion experiments have been performed in order to verify both the simulations and the mechanisms observed in the FEM simulations. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：158 / 173
页数：16
相关论文
共 29 条
[1]  
[Anonymous], 1961, THEORY ELASTIC STABI
[2]  
AUKRUST T, 2002, INT J APPL MECH ENG, V7, P157
[3]   Inflammatory bowel disease: dysfunction of GALT and gut bacterial flora (II) [J].
Chandran, P ;
Safthaporn, S ;
Robins, A ;
Eremin, O .
SURGEON-JOURNAL OF THE ROYAL COLLEGES OF SURGEONS OF EDINBURGH AND IRELAND, 2003, 1 (03) :125-136
[4]   Application of finite element method in the hot extrusion of aluminium alloys [J].
Duan, XJ ;
Velay, X ;
Sheppard, T .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 369 (1-2) :66-75
[5]  
FLITTA I, 2003, MAT SCI TECHNOL JUL, P19
[6]  
FLITTA I, 2002, MAT SCI TECHNOL SEP, P18
[7]  
GRASMO G, 1992, P 5 INT AL EXTR TECH, P367
[8]  
HANDLEMAN GH, 1948, 1530 NACA TN
[9]   Modelling the evolution of microstructure and properties during deformation of aluminium [J].
Holmedal, B ;
Abtahi, S ;
Marthinsen, K ;
Nes, E .
ALUMINUM ALLOYS 2002: THEIR PHYSICAL AND MECHANICAL PROPERTIES PTS 1-3, 2002, 396-4 :315-326
[10]  
Huetink J., 2000, P 7 INT AL EXTR TECH, V2, P157
123