Phenomenological modeling of warm compaction and experimental verification

被引：0
|
作者：
Guo, SJ [1 ]
Lin, T [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
来源：
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2000年 / 7卷 / 04期
关键词：
powder metallurgy; warm compaction; compaction equation;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A phenomenological modeling approach to establishing the warm compaction equation and curves by modifying the regression equation of the room-temperature compaction curve is presented. An enhanced factor of compacting pressure is introduced into the equation in order to reveal the effects of powder/die temperature and filling height of powders on green density. Compaction curves yielded from this equation are consistent with the experimental data of ATOMET grade iron powders. The curves show that the powder/die temperature should reduce as the filling heights of powders increase and that in some cases warm compaction can not give rise to a higher green density.
引用
收藏
页码：292 / 295
页数：4
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