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| Study on Characteristcs of Electro Stream Machining and Controlling Technology of Hole Morphology |
| PAN Zhifu, FU Junying, ZHANG Mingqi |
| ( AVIC Manufacturing Technology Institute, Beijing 100024, China ) |
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Abstract A technique of electro stream machining used to process the film cooling holes of single crystal turbine blade of aero-engine is described. The mechanism of electro stream machining, the effect of technology on the microstructure of single crystal matrix, the characteristics of orifice morphology and the control method are described in detail. In particular, an effective process control method is proposed for several typical orifice defects to ensure the surface quality of film cooling holes and obtain good orifice morphology
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2020, 
