Research on the Detection Model and Method for Evaluating Spot Welding Quality Based on Ultrasonic A-Scan Analysis

Song, Yiheng; Hua, Lin; Wang, Xiaokai; Wang, Bin; Liu, Yali

doi:10.1007/s10921-015-0319-3

Cited by 14 publications

(1 citation statement)

References 21 publications

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“…Therefore, acoustic emission testing is only a supplementary means of detection and cannot replace the traditional detection method. Ultrasound cannot achieve high-quality imaging [28][29][30][31]. Eddy current flux leakage spot welding detectors can only detect surface defects, and the cost is high [24,25].…”

Section: Introductionmentioning

confidence: 99%

Magneto-Optical Imaging of Arbitrarily Distributed Defects in Welds under Combined Magnetic Field

Gao

Tian

et al. 2022

Metals

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Using the traditional magneto-optical detection methods, micro-weld defects parallel with the magnetic field direction may be overlooked. In order to overcome this, a non-destructive testing method based on magneto-optical imaging under a vertical combined magnetic field (VCMF) is proposed. To demonstrate this, the experimental results of the magneto-optical imaging of weld defects excited by a vertical combined magnetic field (VCMF) or parallel combined magnetic field (PCMF) are compared with those of traditional magnetic fields (constant magnetic field (CMF), alternating magnetic field (AMF), and rotating magnetic field (RMF)). It is found that the magneto-optical imaging under a VCMF can accurately detect weld defects of any shape and distribution. In addition, the center difference method is used to eliminate the influence of noise on the defect contour extraction of magneto-optical images, and the active contour of weld defects in the magneto-optical images is extracted. The results show that many noises can be identifiedby the robustness of the level set method, operating in low-pass filtering, so that much information that is usually lost can be retained.

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Section: Introductionmentioning

confidence: 99%

Magneto-Optical Imaging of Arbitrarily Distributed Defects in Welds under Combined Magnetic Field

Gao

Tian

et al. 2022

Metals

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Simulation analysis of ultrasonic detection for resistance spot welding based on COMSOL Multiphysics

Liu

Ren

et al. 2017

Int J Adv Manuf Technol

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Simulation and experimental study on the quality evaluation of laser welds based on ultrasonic test

Zhou

et al. 2017

Int J Adv Manuf Technol

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Research on the Detection Model and Method for Evaluating Spot Welding Quality Based on Ultrasonic A-Scan Analysis

Cited by 14 publications

References 21 publications

Magneto-Optical Imaging of Arbitrarily Distributed Defects in Welds under Combined Magnetic Field

Magneto-Optical Imaging of Arbitrarily Distributed Defects in Welds under Combined Magnetic Field

Simulation analysis of ultrasonic detection for resistance spot welding based on COMSOL Multiphysics

Simulation and experimental study on the quality evaluation of laser welds based on ultrasonic test

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