Manufacturing method for dual-metal dual-performance titanium alloy integral blade disc
The technology of a blisk and manufacturing method is applied in the field of bimetallic dual-performance titanium alloy blisk manufacturing, which can solve the problems of high powder cost, decline in metallurgical quality and mechanical properties, powder metallurgy quality and oxidation in the manufacturing process, and achieve manufacturing Low cost, good metallurgical quality in vacuum environment, excellent effect of metallurgical quality
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[0030] image 3 Shown is a bimetallic dual-performance titanium alloy blisk. The titanium alloy blisk is composed of a disc 1 and blades. The material of the disc 1 is Ti60 titanium alloy, and the material of the blades is Ti2AlNb alloy. A total of 60 blades are evenly distributed on the edge of the wheel disc 1 . Wheel disc 1 is prepared by isothermal forging method, and its size is The Ti2AlNb blade is manufactured by the electron beam fuse deposition additive method, and the height of the blade is 60 mm. The steps are as follows:
[0031] 1) Manufacture Ti2AlNb alloy wire with a diameter of 1.6mm by hot rolling and drawing process, the content of N, H, O interstitial elements in the wire is O≤0.2%, N≤0.05%, H≤0.01%;
[0032] 2) Forging the Ti60 titanium alloy wheel 1 blank, and adopting the standard heat treatment process of Ti60 material for solid solution and double annealing. CNC machining method is used to process the edge of the forged Ti60 titanium alloy wheel d...
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