Die design and experiments for shaped extrusion under cold and hot condition

被引：16
|
作者：
Kumar, S. [1 ]
Vijay, P. [1 ]
机构：
[1] Banaras Hindu Univ, Inst Technol, Dept Mech Engn, Varanasi 221005, Uttar Pradesh, India
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2007年 / 190卷 / 1-3期
关键词：
extrusion; upper bound technique; finite element method; die design;
D O I：
10.1016/j.jmatprotec.2007.01.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents designing, fabrication and experiments for shaped extrusion of aluminum alloy (Al 2024) and lead alloy (70Pb3OSn). Flat and conical dies of H, T, L, elliptical and two-hole sections have been designed on the basis of upper bound technique by the authors for cold and hot extrusion. Hot extrusion has been performed in the temperature range 300-500 degrees C. Experimental investigation have been conducted for average extrusion pressure in cold case for lead alloy (70Pb3OSn) billets and in hot case for commercial grade aluminum (Al 2024) billets respectively. Extrusion pressure in the both cases has been compared with the theoretical work by the author for cold extrusion and for hot extrusion of aluminum alloy, result have been compared with a finite element based commercial package HyperXtrude. Theoretical results obtained by the upper bound technique and the HyperXtrude compares well with the experiments. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：375 / 381
页数：7
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