In light of the characteristics of complex thin-walled curved surfaces and difficult-to-machine materials of the aero-engine blisk, controlling deformation during processing presents a significant challenge. In this study, a deformation control technology for blisks based on segmented machining has been proposed, eliminating the cumulative deformation error during the processing. In this method, a light-curing auxiliary fixture was developed, and its auxiliary support performance was systematically investigated. The segmented grinding experiments were conducted on two types of blisk test-pieces, thereby validating the effectiveness of the deformation control method. The results indicate that the contour error of the blisk test-piece by the segmented grinding process can be controlled within (0.02, 0.04) mm, and the surface roughness is reduced to Ra0.75, effectively enhancing machining accuracy by over 50%. This study offers valuable insights for effectively managing deformation during the processing of intricate thin-walled structural components.
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