“…In addition to heavy-equipment manufacturers and other companies using film inspection, most domestic companies have developed to CR and DR digital ray detection imaging technology for welding quality inspection [4][5][6]. In the defect assessment stage, due to the unevenness and diversity of the nature of defects such as form, location, direction, and size, making it difficult to find a set of common means and methods to automatically identify weld defects in the actual production process [7], the weld defects are usually assessed manually in the assessment process. In the process of manual evaluation of the film, first is to determine whether there are defects on the weld flaw detection image, then determine the type of defects, followed by the determination of defect data, and finally the quality level assessment according to the quality acceptance criteria.…”