Transactions of Materials and Heat Treatment

Title：Influence of forging process on comprehensive mechanical properties for large-size 2219 aluminum alloy forging rings

Authors： Wang Bo Bian Yingshuai Yue Zhanguo Wang Ya′an Guo Xiaomin Liu Jianlin Li Yan

Unit： Xi′an Aviation Brake Technology Co. Ltd.

KeyWords： 2219 aluminium alloy forging process mechanical property forging ratio forging rings

ClassificationCode：TG319

year,vol(issue):pagenumber：2023,48(11):35-39

Abstract：

The large-size 2219 aluminium alloy forging rings (Φ690 mm×Φ448 mm×75 mm) was prepared by 1 t electro-hydraulic free forging hammer, and the different forging processes of 2219 aluminum alloy forging rings were studied. Then, the tangential, radial and axial mechanical properties of forging rings at room temperature were detected, and the influences of total forging ratio on tensile strength, specified non-proportional extension strength and elongation of forging rings under different processes were analyzed. The results show that with the increasing of the total forging ratio, the tensile strengths in the tangential, radial and axial directions increase first and then become stable, and the specified non-proportional extension strength and elongation increase first and then decrease. Thus, appropriately increasing the total forging ratio is conducive to improve the comprehensive mechanical properties of forging rings. When the process scheme that the raw material was first processed by radial cross forging and then upsetting, punching, hole expansion and T6 state heat treatment was used, its total forging ratio is 9.8, the comprehensive mechanical properties of the prepared large-size 2219 aluminum alloy forging rings are optimal and far exceed the requirements in GJB 2057A—2018.

Funds：

作者简介：王博（1995-），男，硕士，工程师，E-mail：447641988@qq.com；通信作者：岳战国（1986-），男，硕士，高级工程师，E-mail：784244507@qq.com

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