Transactions of Materials and Heat Treatment

Title：Gu Ruijie，Zhang Shulian，Yang Daxiang，Jing Yunhai，Li Zhengli，Wu Liang

Authors： Gu Ruijie Zhang Shulian Yang Daxiang Jing Yunhai Li Zhengli Wu Liang

Unit： China National Heavy Machinery Research Institute Co. Ltd. State Key Laboratory of Metal Extrusion and Forging Equipment Technology Northwestern Polytechnical University

KeyWords： large ring radial-axial rolling radial-axial rolling ratio

ClassificationCode：TG335

year,vol(issue):pagenumber：2016,41(5):57-60

Abstract：

The radial-axial rolling technology for ring is the best method to produce high-quality large seamless ring. The radial-axial rolling process for large ring was studied thoroughly, and the influence of forming condition on the radial-axial rolling process for large ring was revealed by comparative analysis on the deformation state of different materials and radial-axial rolling ratios. It is found that the deformation of aluminum alloy ring with better dynamic recrystallization is more inhomogeneous and the section quality is worse than those of carbon steel ring. In order to improve the deformation uniformity, the forming temperature of ring, especially its surface temperature should be decreased. For the ring product with thickness is the same as the height, a bigger radial-axial rolling ratio can improve the deformation uniformity.

Funds：

国家科技重大专项（2010ZX04004-131）；国家重点基础研究发展计划（2012CB724300）

谷瑞杰（1980-），男，博士，高级工程师

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