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    JIAO Biao-qiang, SHI Yao-wu, GAO Lu. Ultrasonic Inspection of Spot-Welded Joints of Coated Steel for Car Body Based on FFT Processing[J]. Nondestructive Testing, 2007, 29(2): 80-83.
    Citation: JIAO Biao-qiang, SHI Yao-wu, GAO Lu. Ultrasonic Inspection of Spot-Welded Joints of Coated Steel for Car Body Based on FFT Processing[J]. Nondestructive Testing, 2007, 29(2): 80-83.
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    Ultrasonic Inspection of Spot-Welded Joints of Coated Steel for Car Body Based on FFT Processing

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    • Received Date: September 11, 2005
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    • Coated steel was used as car body materials to prolong the life of car. However, it is difficult to be welded, and the reliability of ultrasonic testing(UT) technology is not good for sheet steel spot-welded joint. So far no suitable nondestructive testing method can be used to inspect the quality of coated-steel spot-welded joint exactly. A method which combined the UT technology with digital signal processing technology was studied. The results showed that the method could improve the reliability of inspection for car body coated steel spot-welded joint.
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      • References (4)
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      李大东，余腾义，金 翔，等.热镀锌钢板点焊性能的研究[J].钢铁钒钛,2001,22(4):16-21.
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