Analysis of Material Flow in Screw Extrusion of Aluminum

被引：0

作者：

Haugen, Bjorn

Ornskar, Magnus

Welo, Torgeir

Wideroe, Fredrik

机构：

来源：

NUMIFORM 2010, VOLS 1 AND 2: DEDICATED TO PROFESSOR O. C. ZIENKIEWICZ (1921-2009) | 2010年 / 1252卷

关键词：

Screw extrusion; Aluminum; Non-Newtonian flow; Finite Element Analysis; Slip conditions; Experimental results;

D O I：

10.1063/1.3457646

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Screw extrusion of aluminum is a new process for production of aluminum profiles. The commercial potential could be large. Little experimental and numerical work has been done with respect to this process. The material flow of hot aluminum in a screw extruder has been analyzed using finite element formulations for the non-Newtonian Navier-Stokes equations. Aluminum material properties are modeled using the Zener-Holloman material model. Effects of stick-slip conditions are investigated with respect to pressure build up and mixing quality of the extrusion process. The numerical results are compared with physical experiments using an experimental screw extruder.

引用

页码：860 / 867

页数：8

共 8 条

[1] Thin shear boundary layers in flow of hot aluminium [J].