Machining method for improving outline profile tolerance of edge strip of large integral frame part

The invention relates to the field of machining, in particular to a machining method for improving the outline profile tolerance of an edge strip of a large integral frame part. Determining a part edge strip inclination deformation large area according to the measurement result of the machined part; by thickening the inner surface of the edge strip of the part, the deformation resistance of the edge strip is improved, and the inclination deformation of the edge strip is reduced; by setting the maximum allowable thickness Tmax and the minimum allowable thickness Tmin of the edge strip, the fluctuation range of the wall thickness of the edge strip of the part during machining and manufacturing of the part is determined, and the tolerance zone of the wall thickness of the edge strip of the part is enlarged; by supplementing the appearance allowance of the edge strip of the part in the to-be-machined area, edge strip inclination deformation generated after finish machining and sufficient natural aging of the part