Laser peening shape-correction quality control method for an aircraft engine stand

A laser peening shape-correction quality control method for an aircraft engine stand, comprising the steps of: establishing a database of the correlations between a laser peening shape-correction parameter and the welding-deformation-amount by means of a big data platform; refining the structure of an aircraft engine stand; welding the refined structures and performing laser peening shape-correction; welding the refined structures of the stand into a final assembly and performing laser peening shape-correction; detecting the shape-correction effect. The method refines the complex aircraft engine stand into three simple refined structures, and uses the processing sequence of segment welding, segment laser peening shape-correction, welding into a final assembly, and laser peening shape-correction of the final assembly; since laser peening shape-correction is performed on each of the refined structures before the welding into a final assembly, the method can reduce the welding deformation of the overall structure of the stand, such that the overall structure of the stand is easier to be corrected during laser peening shape-correction, solving the problem of deformation of the aircraft engine stand arising during the process of welding and allowing to accurately control the size precision and shape precision of the stand with a good correction effect.