The invention belongs to the technical field of
laser shock strengthening, and discloses a method for improving
laser shock precision and efficiency of weak rigidity parts. The method comprises the steps that the rigidity of the weak rigidity parts is analyzed by UG three-dimensional
software, and shock regions with different rigidity are obtained;
laser shock parameters are set, laser with smaller
power density is used in the area with weaker rigidity, and laser with larger
power density is used in the area with larger rigidity; the depth and strength of
residual compressive stress can meet the requirements by adjusting pulse width and increasing shock times; and a sensor is used to monitor the elastic deformation of the weak rigidity parts during
processing, and parameters controlling and
deformation monitoring are repeated so as to finally improve the laser shock precision and efficiency of the weak rigidity parts. According to the method for improving the laser shock precision andefficiency of the weak rigidity parts, the laser shock is carried out on different rigidity regions of parts by changing the laser parameters in real time, so that the elastic deformation degree is reduced, and the elastic deformation
recovery time is shortened; and shocking parts under the condition of excessive elastic deformation which causes spot
shape change and action position deviation to affect
processing precision and strengthening effect is avoided.