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Research Status of Machining Deformation Control Method and Technology of Aeroengine Blade
Pages: 41-49,62
Year: Issue:  21
Journal: Aeronautical Manufacturing Technology

Keyword:  AeroengineBladeDeformation controlGrinding;
Abstract: Proifle precision and stability of aeroengine blade has a direct inlfuence on the global performance of aeroengine. Because of high machining dififculty and weak stiffness, proifle precision and surface quality are very hard to meet the design requirements. So, many methods are developed and utilized to control the deformation of aeroengine blade. Based on the analysis of deformation mechanism and application characteristics, the deformation control methods and mechanism for machining aeroengine blade are classiifed. Meanwhile, different characteristics of deformation control methods are analyzed in depth. According to the structure, dififcult-to-cut material characteristic and some processing prob-lems of aeroengine blade, controlling the deformation caused by residual stress is the key point to reduce the proifle errors of blade to be 20μm. Moreover, the high-speed helical cantilever grinding process using the super-hard abrasive wheel is effective in the ifnish machining aeroengine blade to control the integrated deformation.
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