Semi-hot Stamping as an Improved Process of Hot Stamping

查看全文 作　　者：Malek [1]Naderi;Mostafa [1]Ketabchi;Mahmoud [1]Abbasi;Wolfgang [2]Bleck

机构地区：[1]Department of Mining and Metallurgy,Amirkabir University of Technology;[2]Department of Ferrous Metallurgy,RWTH-Aachen University

出　　处：《Journal of Materials Science & Technology》索引2011年第27卷第4期,共8页

摘　　要：Reducing the forming load,deletion of springback,increasing the formability of sheets as well as producing high strength parts are the main reasons to apply hot stamping process.Hot stamping process and 22MnB5 steels are the state of the art process and grades,respectively;however novel processes and steel grades are under considerations.In the current research,behavior of the steel grade MSW1200 blanks under semi and fully hot stamping processes was characterized.During semi-hot stamping process,the blank was firstly heated to a temperature of about 650℃ and then formed and quenched in the die assembly,simultaneously.Microstructure and mechanical properties of semi and fully hot stamped blanks were studied and the results were compared with those of normally water/air quenched blanks.The hot stamped blanks attained the strength values as high as water quenched blanks.The highest ductility and consequently,the best formability were achieved for the blank which had been semi-hot stamped.It was concluded that for the mentioned steel,semi-hot stamping process could be considered as an improved thermo-mechanical process which not only guaranteed a high formability,but also led to ultra high strength values. 关键词：烫金工艺烫印淬火处理机械性能成形性成形载荷行为特点冲压工序

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Semi-hot Stamping as an Improved Process of Hot Stamping

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