Transactions of Materials and Heat Treatment

Title：Modeling research on FM forging process of heavy low-pressure turbine rotor

Authors： WANG Shao-peng MA Qing-xian LIU Xin (Key Laboratory for Advanced Materials Processing Technology of Ministry of Education Department of Mechanical Engineering Tsinghua University Beijing 100084 China)

Unit：

KeyWords： heavy forgings forging process low-pressure rotor

ClassificationCode：TG316

year,vol(issue):pagenumber：2009,34(6):136-139

Abstract：

The low-pressure turbine rotor in 1000 MW-class nuclear power plant is presently the largest forging in the world. It should be forged by ingot of 600 t. According to the rotor's forming specialty,its forging process using FM method was studied by physical modeling. W/H ratio about 0.6 and reduction ratio as 15% were suggested. Cracks on billet's surface were revealed. Proper angle about 8° of protuberant anvil to reduce crack impact,billet shape and multi-path drawing process were researched. The results provide a theoretical guidance for practical manufacture process.

Funds：

“十一五”国家科技支撑计划重点项目课题(2007BAF02B07)

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