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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 19    No. 4    August 2009

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Flow characteristics of aluminum coated boron steel in hot press forming
Jeong-Hwan JANG, Jae-Ho LEE, Byeong-Don JOO, Young-Hoon MOON

School of Mechanical Engineering, Pusan National University, Busan, 609-735, Korea

Abstract:The flow characteristics of aluminum coated boron steel in hot press forming were investigated. Furthermore, the effects of aluminum coated layer on press forming were analyzed during deep drawing. The results show that aluminum coated boron steel exhibits a high sensitivity on temperature and strain rate. Aluminum coating layer appears in surface flaking in a temperature range of 700−800 ℃, but smooth surface is formed above 900 ℃.

 

Key words: hot press forming; aluminum coated boron steel; deep drawing; thermo-mechanical properties

ISSN 1672-7029
CN 43-1423/U

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