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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 5    October 2003

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Warm compaction behaviors of iron-based powder lubricated by different kinds of graphite
XIAO Zhi-yu(肖志瑜), LI Yuan-yuan(李元元),
NGAI Tungwai Leo(倪东惠), GUO Guo-wen(郭国文),
CHEN Wei-ping(陈维平),

College of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China

Abstract:Warm compaction behaviors and their affecting factors such as compaction temperature, compaction pressure and lubricant concentration were studied. Effect of die wall lubrication on the powder’s warm compaction behavior was also studied. The use of smaller size colloidal graphite investigated ca, n give a higher compact density and lesser spring-back effect than the use of flake graphite.

 

Key words: warm compaction behavior; iron-based powder metallurgy; spring-back effect

ISSN 1672-7029
CN 43-1423/U

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