INSPECTION AND QUALIFICATION FOR REMANUFACTURING OF COMPRESSOR WHEELS

摘要

A method for remanufacturing a compressor wheel for a turbocharger is disclosed. The method includes scanning one or more surfaces of the compressor wheel using a laser scanning system to measure a depth of defects located in the one or more surfaces. The method further includes forming a compressive residual stress zone in each of the one or more surfaces with an effective depth that is at least equal to the predetermined distance if all of the measured depths are less than a predetermined distance and discarding the compressor wheel if at least one of the measured depths is greater than or equal to the predetermined distance.

主权项

1. A method for remanufacturing a compressor wheel for a turbocharger, the method comprising:
scanning one or more surfaces of the compressor wheel using a laser scanning system to measure a depth of defects located in the one or more surfaces, the depth of each of the defects being measured relative to the surface that each of the defects is located in; comparing the depth of each defect measured to a predetermined distance; keeping the compressor wheel if all of the measured depths are less than the predetermined distance and discarding the compressor wheel if at least one of the measured depths is greater than or equal to the predetermined distance; and forming a compressive residual stress zone in each of the one or more surfaces with an effective depth that is at least equal to the predetermined distance if the compressor wheel is kept.