Transactions of Materials and Heat Treatment

Title：Simulation and application on vertical internal high-pressure bulging for thin-walled rotating parts

Authors： Gao Xianjuan1 Wang Zirong2 Kan Tiantian1 Huang Qingsong1 Sun Yuxia1 Zhang Shuai2 Zhao Wenhua2

Unit： 1. AVIC Shenyang Liming Aero Engine Co. Ltd. Shenyang 110041 China 2. Wuyue Hangke (Tianjin) Precision Manufacturing Co. Ltd. Tianjin 300400 China

KeyWords： thin-walled rotating parts vertical internal high-pressure bulging sealing structure outer diameter roundness liquid chamber pressure

ClassificationCode：TG394

year,vol(issue):pagenumber：2025,50(6):86-94

Abstract：

In order to solve the problems of poor product dimensional accuracy, difficult assembly, low pass rate and high cost when thin-walled rotating parts were manufactured by traditional split welding and rigid expansion and bulging method, the vertical internal high-pressure bulging scheme was designed based on internal high-pressure pulging technology, and finite element analysis software was used for simulation, theoretical calculations and auxiliary analysis. Furthermore, the actual production tests were conducted for verification. The results show that the vertical internal high-pressure bulging scheme for thin-walled rotating parts with a diameter of Φ300-Φ800 mm is feasible. Its optimal sealing structure is Y-shaped sealing structure, which must ensure that the outer diameter of preformed blank is larger than the inner diameter of Y-shaped sealing ring by Φ0.3-Φ0.5 mm, and the outer diameter roundness of preformed blank is within 0.2 mm, and the maximum liquid chamber pressure that can be sealed is 160 MPa. Thus, the research result provides new ideas for the integral precision forming of large-diameter thin-walled rotating parts.

Funds：

作者简介：高献娟（1975-),女，硕士，高级工程师,E-mail：15640580956@163.com;通信作者：王子荣（1990-），男，硕士，工程师,E-mail：13652095025@139.com

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