Electrochemical trepanning with uniform electrolyte flow around the entire blade profile
| Autor: | Dong Zhu, Xingyan Hu, Tingyu Xue, Zhouzhi Gu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Trepanning Materials science Mechanical Engineering Flow (psychology) Aerospace Engineering TL1-4050 02 engineering and technology Surface finish Electrochemical machining 01 natural sciences 010305 fluids & plasmas Volumetric flow rate 020901 industrial engineering & automation Machining 0103 physical sciences Potential flow Tool wear Composite material Motor vehicles. Aeronautics. Astronautics |
| Zdroj: | Chinese Journal of Aeronautics, Vol 32, Iss 7, Pp 1748-1755 (2019) |
| ISSN: | 1000-9361 |
| Popis: | In the traditional machining process for diffusers, blades are easily deformed, and methods suffer from high tool wear and low efficiency. Electrochemical machining (ECM) possesses unique advantages when applied to these difficult-to-machine materials. In the ECM process, the flow field plays a crucial role. Here, an electrolyte flow mode that supplies uniform flow around the entire blade profile was adopted for electrochemical trepanning of diffusers. Various flow rates were employed to obtain the optimal flow field. Simulations were conducted using ANSYS software, and results indicated that increasing the flow rate substantially afforded a more uniform flow field. A series of experiments was then performed, and results revealed that increasing the flow rate greatly improved both the machining efficiency and the surface quality of the diffusers. The maximum feeding rate of the cathode reached 4 mm/min, the blade taper of the concave part decreased to 0.02, and the blade roughness was reduced to 1.216 μm. The results of this study demonstrated the high feasibility of this method and its potential for machining other complex components for engineering applications. Keywords: Diffuser, Electrochemical machining, Flow, Roughness, Taper |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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