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| Application of Key Technologies on Manufacturing Process of Titanium Alloy Tube Assembly for Aeronautic Hydraulic Pressure System |
| YAN Jing 1，ZHANG Rongxia 1，WU Wei 1，ZENG Yuansong 1，ZHANG Yan 2，WANG Shoucai 2 |
| 1. AVIC Manufacturing Technology Institute, Beijing 100024, China;
2. AVIC Shenyang Aircraft Design Research Insititute, Shenyang 110035, China |
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Abstract A manufacturing methodology is provided for typical titanium alloy tube assemblies in 21–28MPa aeronautic hydraulic pressure system, based on tube numerical control left/right bending technology, tube optical measurement technology, tube flareless internal rolling connection technology and quality test technology of titanium alloy tube assemblies. This methodology is verified by a manufacturing process of the high strength titanium alloy (Ti–3Al–2.5V) tube assemblies for a typical hydraulic pressure system in a commercial plane. It can be found that the manufacturing precision, efficiency, and reliabilities of the titanium alloy tube assemblies are enabled by using this methodology, and a new technology way can be found for solving the leakage problems in aeronautic hydraulic pressure system.
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2022, 
