Transactions of Materials and Heat Treatment

Title：Hydraulic upsetting-shaping process of aluminum alloy cabin body with deep cavity and thick wall

Authors： Zhou Leilei1 Su Can1 Wang Qingfeng2 Gao Hui1 Zhou Xiaojing1 Wu Liming1 Liu Lei1 Han Bing1 Wang Shenglong1 Qin Zhonghuan1 Chu Guannan2

Unit： 1. Beijing Hangxing Machinery Manufacturing Co. Ltd. 2. School of Materials Science and Engineering Harbin Institute of Technology (Weihai)

KeyWords： cabin body with deep cavity and thick wall hydraulic upsetting precision shaping 3D scanning liquid sealing

ClassificationCode：TG376.3

year,vol(issue):pagenumber：2024,49(8):110-114

Abstract：

For the problems of difficult shaping and poor profile accuracy after shaping for aluminum alloy structural components with deep cavity, a new method of hydraulic upsetting-shaping for structural components with deep cavity and thick wall was proposed. Then, the feasibility of hydraulic upsetting-shaping for 6005A-T6 aluminum alloy structural component with deep cavity and thick wall was proved by simulation and experimental verification, and the influence laws of key process parameters on the shaping results were explored to determine the optimal process parameters. Furthermore, the hydraulic upsetting-shaping die was designed for shaping product, and the shaping experiment of aluminum alloy structural components with deep cavity and thick wall was conducted. The results show that by controlling the range of process parameters in the hydraulic upsetting-shaping process, the inner arc sticking die of product shrinks and the outer contour width increases. After shaping, the product can meet the technical requirements, and the dimensional accuracy of the profile can reach ±0.3 mm compared with the theoretical model. For the back of products with a wall thickness of up to 30 mm, the dimensional accuracy of the profile can still reach ±0.3 mm.

Funds：

航天科工集团工艺振兴项目（GYZX2021B003）

作者简介：周蕾蕾(1989-)，女，硕士，工程师 E-mail：409545609@qq.com

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