WATERJET PEENING APPARATUS, WATERJET PEENING METHOD, AND NOZZLE EVALUATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a waterjet peening apparatus capable of accurately acquiring a nozzle state.SOLUTION: A waterjet peening apparatus comprises: a nozzle arranged underwater and having a jet port jetting out water; a detector arranged underwater and detecting sound in at least part of a period in which the water is jetted out from the jet port; and a processor determining whether the nozzle is abnormal on the basis of a detection result of the detector.