Ultrasonic Nondestructive Testing on False Welding Joint of Spot Welding for 00Cr18Ni10N Stainless Steel

Yong Zhang; Zong Fang Liu; Hong Xia Xie; Lian Zhi Guo

doi:10.4028/www.scientific.net/AMR.662.366

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662Ultrasonic Nondestructive Testing on False Welding...

Ultrasonic Nondestructive Testing on False Welding Joint of Spot Welding for 00Cr18Ni10N Stainless Steel

Abstract:

00Cr18Ni10N stainless steel spot-welded joints were inspected by ultrasound in transmission mode under the water. By comparing and studying ultrasonic transmission wave signals of the spot welded joint of existing nugget and the false welded joint which were received by digital oscilloscope, we find that there are differences in degree of attenuation between multi transmitted wave and primary transmitted wave of two kinds of joints. The degree of attenuation of multi transmitted wave of false welded joint is obviously less than that of the joint with nugget. Therefore, false welded joint can be judged and identified through the degree of attenuation of multi transmitted wave relative to primary transmitted wave, and the dissection results verify the feasibility of this test method.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

366-371

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.366

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Online since:

February 2013

Authors:

Yong Zhang, Zong Fang Liu, Hong Xia Xie, Lian Zhi Guo

Keywords:

False Welding, Resistance Spot Welding, Ultrasonic Nondestructive Testing, Ultrasound in Transmission Mode under the Water

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