A magnetic flux leakage method using a magnetoresistive sensor for nondestructive evaluation of spot welds

被引：49
作者：
Tsukada, Keiji [1 ]
Yoshioka, Mitsuteru [1 ]
Kiwa, Toshihiko [1 ]
Hirano, Yoshinobu [2 ]
机构：
[1] Okayama Univ, Grad Sch Nat Sci & Technol, Kita Ku, Okayama 7008530, Japan
[2] Ohashi Engn Co Ltd, Ota Ku, Tokyo 1430013, Japan
来源：
NDT & E INTERNATIONAL | 2011年 / 44卷 / 01期
关键词：
Spot welding; Magnetic flux leakage; Magnetoresistive sensor; FIELD; COMPONENTS; SYSTEM; FLAW; NDT;
D O I：
10.1016/j.ndteint.2010.09.012
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Spot welding is widely used for joining metal plates However a highly reliable monitoring method is needed to weld a robust structure For this purpose we developed a magnetic flux leakage (MFL) system using a magnetoresistive (MR) sensor for nondestructive spot-weld inspection The magnetic flux is induced between two joined plates and the magnetic flux leakage with a tangential component parallel to the plate surface is measured A magnetic image at the spot-welding part is obtained by two-dimensional scanning The connected diameter of the nugget and the maximum shear load are measured after the magnetic measurement to investigate their interrelationship The results show that the nondestructive magnetic flux leakage test shows a good correlation with the destructive shear test (C) 2010 Elsevier Ltd All rights reserved
引用
收藏
页码：101 / 105
页数：5
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