DEVICE FOR APPLYING COMPRESSIVE RESIDUAL STRESS

摘要

PROBLEM TO BE SOLVED: To provide a device for applying compressive residual stress capable of reducing a stress to be applied to a peening non-object member adjacent to a peening object member.

SOLUTION: The device includes a peening device for applying a compressive residual stress to the peening object member by allowing jet jetted out from a jet nozzle in liquid to hit onto the peening object member in accompany with cavitation bubbles, and a cap 32 rocking in the covered state on the peening non-object member 33a adjacent to the peening object member.

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