APPLICATION OF FRACTAL THEORY IN EXAMINATION OF RESISTANCE SPOT WELDING QUALITY
Resistance spot welding is a technology applied extensively in mechanical manufacturing industry, non-destructive testing of resistance spot weld quality has been a hot research project in welding field. In this paper, spot welding tests were carried out and the welding spot surface images were acquired. Testing calculational formula of box-counted dimension were introduced. Calculational method about box-counted dimension was given and program about dimension and image processing based on Matlab were projected. In the end, the relationship between fractal dimension and tensile strength of the welding spot was analyzed, the result showed that the fractal dimension of the welding spot is correlated with the tecsile strength of the welding spot. It provides a basis on using welding spot imprint image to examine the weld quality.
Resistance spot welding Fractal dimension Weld quality
Hou Zhanfeng Wu Pei Xue Jing Han Jingyu
School of Mechanical and Electrical engineering, inner mongolia Agricultural University, huhehaote 0 Corresponding author
国际会议
北京
英文
422-424
2010-11-23（万方平台首次上网日期，不代表论文的发表时间）