Shot blasting deformation control method for thin-wall blade

The invention relates to the technical field of blade machining, and discloses a shot blasting deformation control method for a thin-wall blade. And the mode that the inner side of the bending deformation trend of the to-be-strengthened blade is treated through the second shot blasting machining parameters and the outer side of the bending deformation trend of the to-be-strengthened blade is treated through the first shot blasting machining parameters is adopted as the shot blasting strengthening treatment mode of the to-be-machined blade, and double-side opposite spraying technology strengthening treatment is conducted on the to-be-machined blade. Deformation control in the aero-engine thin-wall blade shot peening strengthening repair process is achieved, the product machining quality is improved, the control method is simple and convenient, it can be guaranteed that the blade size after shot peening meets the design requirement tolerance range, and the problem that the size of the thin-wall blade is out of