Laser-Ultrasonic Inspection of Hybrid Laser-Arc Welded HSLA-65 Steel

被引：3

作者：

Levesque, D. ^{[1
]}

Rousseau, G. ^{[1
]}

Wanjara, P. ^{[2
]}

Cao, X. ^{[2
]}

Monchalin, J. -P. ^{[1
]}

机构：

[1] Natl Res Council Canada, 75 de Mortagne Blvd, Boucherville, PQ J4B 6Y4, Canada

[2] Natl Res Council Canada, Montreal, PQ, Canada

来源：

40TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: INCORPORATING THE 10TH INTERNATIONAL CONFERENCE ON BARKHAUSEN NOISE AND MICROMAGNETIC TESTING, VOLS 33A & 33B | 2014年 / 1581卷

关键词：

Hybrid Laser-Arc Weld; Laser Ultrasonics; Synthetic Aperture Focusing Technique; FRICTION STIR WELDS;

D O I：

10.1063/1.4864848

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The hybrid laser-arc welding (HLAW) process is a relatively low heat input joining technology that combines the synergistic qualities of both the high energy density laser beam for deep penetration and the arc for wide fit-up gap tolerance. This process is especially suitable for the shipbuilding industry where thick-gauge section, long steel plates have been widely used in a butt joint configuration. In this study, preliminary exploration was carried out to detect and visualize the welding defects using laser ultrasonics combined with the synthetic aperture focusing technique (SAFT). Results obtained on 9.3 mm thick butt-welded HSLA-65 steel plates indicated that the laser-ultrasonic SAFT inspection technique can successfully detect and visualize the presence of porosity, lack of fusion and internal crack defects. This was further confirmed by X-ray digital radiography and metallography. The results obtained clearly show the potential of using the laser-ultrasonic technology for the automated inspection of hybrid laser-arc welds.

引用

页码：405 / 411

页数：7

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