Weld penetration monitored by detection of high-frequency acoustic emissions produced by advancing weld pool as it melts and solidifies in workpiece. Acoustic emission from TIG butt weld measured with 300-kHz resonant transducer. Rise in emission level coincides with cessation of weld penetration due to sudden reduction in welding current. Such monitoring applied to control of automated and robotic welders.


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    Title :

    Acoustic-Emission Weld-Penetration Monitor


    Contributors:
    Maram, J. (author) / Collins, J. (author)

    Published in:

    Publication date :

    1986-06-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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