The invention discloses a steel plate surface defect coping method for high-
surface engineering machinery, which relates to the technical field of
metal material surface
defect repair, and comprises the following steps: positioning the defect position on the surface of a steel plate, and determining the defect type and the
defect size; determining a corresponding
grinding area based on the defect type and the
defect size of each defect; sequentially carrying out rough
grinding treatment and accurate
grinding treatment on the grinding area corresponding to each defect; and
polishing the grinding area corresponding to each defect. Through the specific grinding area control and grading progressive
grinding process, the defects are completely eliminated, the grinding area and the steel plate body are in smooth transition, the surface is smooth, grinding traces are difficult to distinguish by naked eyes, the high-value steel plate with the
high surface defects is saved, and the production cost of an enterprise is greatly reduced.