Transactions of Materials and Heat Treatment

Title：Current situation and development trend of cross wedge rolling technology in China

Authors： Zhang Jungai Cui Songsong Qin Sixiao Shi Xiaomeng An Ruowei Zhang Zhao Xue Hongyan Han Na

Unit： Hebei Dongan Precision Manufacturing Co. Ltd. Hebei Technology Innovation Center of Cross Wedge Rolling Beijing Research Institute of Mechanical & Electrical Technology Ltd.

KeyWords： cross wedge rolling multi-wedge synchronous rolling intelligence rolling curve surface helix

ClassificationCode：TG335

year,vol(issue):pagenumber：2020,45(6):1-7

Abstract：

Cross wedge rolling is an advanced technology for forming shaft parts, which has the advantages of high efficiency, material saving, clean, low noise and near net forming, etc, and it has become an advanced technology that is developed and actively adopted in the world. Therefore, the development status of cross wedge rolling technology in China was introduced including the promotion and application of cross wedge rolling technology, and the research and development progress of its key technologies. It is pointed out that the technology of cross wedge rolling in China is generally at the international advanced level, and in some aspects it is at the international leading position. Furthermore, the defects in the process of cross wedge rolling such as loose and hellow were effectively controlled, the problem that the maximum cross-sectional reduction in one-time wedge forming was not exceed 75% was solved, the design accuracy of rolling curve was improved, the problem of precise forming for right angle in narrow step was solved, the surface helix was improved or cntrolled, and the product precision and material utilization rate of cross wedge rolling were improved. Finally, some problems in cross wedge rolling industry such as automatic and rapid die changing, multi-wedge synchronous rolling of long shaft, unmanned and intelligent were pointed out.

Funds：

石家庄市科技局科研项目（191080071A）

张军改（1965-），女，学士，总工 E-mail：18931171789@163.com

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