Transactions of Materials and Heat Treatment

Title：Internal rolling connecting on guide tubes for titanium alloy TA18

Authors： Zhang Rongxia Wu Wei Zeng Yuansong

Unit： AVIC Beijing Aeronautical Manufacturing Technology Research Institute Aeronautical Key Laboratory for Plastic Forming Technologies Beijing Key Laboratory of Digital Plasticity Forming Technology and Equipment

KeyWords： hydraulic system 28 MPa titanium alloy TA18 titanium alloy guide tubes internal rolling connecting forming torque track method

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(5):43-47

Abstract：

For the TA18 titanium alloy, the internal rolling connecting of guide tubes was researched. Then, the special equipment based on torque control was developed, and the internal rolling connecting of titanium alloy guide tubes with difficulty in deformation was realized. At the same time, the relationships between the forming torque and the protrusion of tube end as well as the internal diameter of connecting tube were mastered to point out their linear increase approximately, and the detection on tightening degree between mating surfaces of the union parts was carried out by the track method. The detection result indicates that the tightening degree is up to a hundred percent between the mating surfaces of tube and plug with uninterrupted circumference. Furthermore, the produced parts are tested by tightening degree of mating surface and hydraulic system 28 MPa to meet the performance requirements.

Funds：

总装预研航空支撑项目（61901110302）

张荣霞（1979-），女，硕士，高级工程师

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