FEATURE ANALYSIS AND EXTRACTION OF INNER DEFECTS FOR SPOT WELD NUGGET OF ALUMINUM ALLOY
来源期刊:中国有色金属学报(英文版)1998年第3期
论文作者:Gang Tie Shen Chunlong Gong Runli
文章页码:485 - 489
Key words:spot welding; nugget defect; K-L transformation; feature analysis
Abstract: The information and data reflecting inner defects in spot welding nugget of aluminum alloy were obtained by edge extracting and tracking to binary image. Based on the K-L transformation, the major and minor axes of defects were calculated, and the distribution of defects in spot welds were described. Based on the above mentioned, a preliminary analysis of defect features was carried out.