METHOD AND DEVICE FOR LASER PEENING

摘要

PROBLEM TO BE SOLVED: To provide a method and device for laser peening capable of implementing laser peening readily and reliably.SOLUTION: The method and device for laser peening radiates a second laser beam B with a second laser intensity stronger than a first laser intensity and a second pulse width narrower than a first pulse width while radiating a first laser beam A with the first laser intensity and the first pulse width to a surface of an object 16 with, to a part to which the first laser beam A is radiated in the surface of the object.