The invention discloses a special-shaped
metal material
laser welding joint defect automatic detection method and
system, and relates to the technical field of
metal welding detection. Comprising the following steps:
data acquisition and
processing: acquiring material characteristics, process parameters and
welding joint data, and cleaning the data; defect prediction: based on the
laser welding digital twin model, simulating a
laser welding process, tracking dynamic behaviors of a
molten pool, predicting defects of a
welding joint, and sending out defect early warning to obtain defect prediction data; and defect detection and classification: based on a
welding joint defect detection model, automatically generating a detection path according to defect prediction data. According to the method, the welded joint defect detection model is constructed, and the optimized detection path is automatically generated, so that the defect detection is converted from blind scanning to purposeful accurate screening, and the defect detection efficiency is improved; a laser welding digital twinborn model is constructed, the
welding process is simulated, the bottom state of a
molten pool is tracked in real time, defects generated in the
welding process are predicted in real time, and the defect missing detection problem is reduced.