Residual stress detection and control technology for large high-strength steel shell components

After rolling and welding, the high-strength steel shell will generate internal residual stress, causing deformation of the parts. To reduce the impact of stress on the machining accuracy of workpieces, it is necessary to eliminate it. High energy ultrasound can eliminate internal residual stresses generated during the machining process. The ultrasonic critical refraction longitudinal wave method is used to detect the distribution of residual stress in high-strength steel shells. The research results show that the ultrasonic critical refractive longitudinal wave method can accurately detect residual stresses inside rotating parts, while high-energy ultrasound can effectively remove residual stresses inside components to ensure a reduction in workpiece deformation.