Laser cladding repairing method for aircraft end-journal part surface

The invention belongs to the technical field of laser cladding, relates to a laser cladding repairing method for aircraft end-journal part surface, particularly to a method for repairing the mechanical wear and scrape malfunction of an aircraft end-journal part after long-time service by adopting the laser fused deposition technology. The method aims at mechanical wear, scrape and other defects on the surface of the part, selects spherical precipitation to harden stainless steel metal dust, adopts reasonable laser cladding technological parameters, and removes residual stress of the part after cladding through the specific heat treatment technology to recover the performance of the aircraft end-journal and realize repairing of lengthening the service life. The repaired end-journal part hardly deforms, and the depth of a heat affected area is no more than 0.5mm; the repairing area does not have the defects of cracks, incomplete fusion and slag inclusion; the serviceability of the repaired end-journal is recovered.