Experimental study on blisk by electrolysis assisted MAF
In view of the characteristics of aero engine blisk such as complicated structure and difficult to processing, electrolysis was introduced as an auxiliary method on the basis of magnetic abrasive fin-ishing(MAF)technology. By electrolyzing to produce a passivation film which was easy to handle, and then MAF technology was introduced. As a result, the removal of the surface texture of the blisk was ac-celerated, while which made the surface processing quality more even. The surface topography of the blisk was observed by 3D super depth of field electron microscope, and the results showed that after compound processing of 20 min, the surface texture of the blisk was completely removed and the sur-face quality became more fine and even. The surface roughness value Ra was reduced from 1.5 μm to 0.4 μm.
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