Nondestructive testing of resistance spot welds using eddy current thermography

被引：19

作者：

Taram, Abdoulaye ^{[1
,2
]}

Roquelet, Cyrielle ^{[1
]}

Meilland, Philip ^{[1
]}

Dupuy, Thomas ^{[1
]}

Kaczynski, Christine ^{[1
]}

Bodnar, Jean-Luc ^{[2
]}

Duvaut, Thierry ^{[2
]}

机构：

[1] ArcelorMittal Maizieres Res, Voie Romaine, F-57280 Maizieres Les Metz, France

[2] GRESPI, UFR Sci Exactes & Nat, BP 1039, F-51687 Reims 02, France

来源：

APPLIED OPTICS | 2018年 / 57卷 / 18期

关键词：

CURRENT PULSED THERMOGRAPHY; INFRARED THERMOGRAPHY; CRACKS; STEEL; INSPECTION; ZONE;

D O I：

10.1364/AO.57.000D63

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The paper presents the use of eddy current thermography for detecting cracks in resistance spot welds. The sample is a three-sheet stack-up joined together by welding spots. Inductive Helmholtz coil is used for heating up the sample, and the thermal response of each spot is monitored using a cooled indium antimonide camera. The sequence of images captured is processed using the pulsed-phase thermography technique. The phase image is completed with a supplementary filtering operation to allow outlining defects. The result was confirmed with confocal microscopy inspection. (C) 2018 Optical Society of America

引用

页码：D63 / D68

页数：6

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