The profile accuracy and surface integrity of blades directly restrict the performance and service life of the aero-engine. Because of the characteristics of thin-wall deformation and difficult material processing and flexible contact

it is difficult to achieve a precision grinding. Therefore

a self-adaptive abrasive belt grinding method based on the integration of defection and machining was proposed. Firstly

according to the characteristics of the blade structure

the edge grinding and round angle grinding devices were designed

which were used to grinding the blade surface and LTE(the leading and the trailing edges)

the damping table and the root corner. Secondly

self-adaptive software was developed based on geometric error of model reconstruction. Finally

the blade grinding test was carried out through the double position integrated seven axis CNC grinding center. The results show that the surface roughness of the blade is less than 0.4μm

the machining error is kept within the range of 0.05mm

and the grinding period is only 3.5h

which satisfies the processing requirements of the blade. Therefore

the self-adaptive abrasive belt grinding technology is an effective method for precision grinding of blades.