Transactions of Materials and Heat Treatment

Title：Development of stepping beam heating furnace for pre-forging heating of

Authors： Zhang Wenliang Luo Ping Li Aiguo Su Hang Zhou Tong Sun Meng Li Xianjun

Unit： Beijing Research Institute of Mechanical & Electrical Technology

KeyWords： aluminum alloy wheel hub pre-forging heating stepping beam heating furnace temperature uniformity automatic control

ClassificationCode：TH181

year,vol(issue):pagenumber：2018,43(11):94-98

Abstract：

A stepping beam heating furnace for pre-forging heating of aluminum alloy wheel hub billets used for large buses and trucks was developed, and its components and the methods solving the key problems were introduced. Then, the in-furnace air guiding mechanism was optimized by fluid calculation kinetics software CFD to enhance furnace temperature uniformity, and the dynamic and static beams were designed to have the same tooth surface structure as well as the moving beam travel distance was less than 1 pitch. Furthermore, the workpiece was heated in the furnace while rotating at a certain angle to improve the heating uniformity of workpiece. The production practice proves that the heating furnace has the advantages of high heating speed, large output, uniform radial core temperature during heating, energy saving, high automation, stable and reliable operation. Thus, the temperature and metallographic structure of aluminum alloy wheel hub billet treated by the furnace can meet the following forging process requirements and provide a good temperature foundation for the next forming process of aluminum alloy wheel hub.

Funds：

“高档数控机床与基础制造装备”科技重大专项（2018ZX04010010）

张文良（1979-），男，学士，研究员级高级工程师,E-mail：zhangwlwork@163.com;通讯作者：李贤君（1977-），男，博士，研究员级高级工程师,E-mail：imlxj@163.com

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