Based on the analysis of international and interstate standards for ultrasonic testing of welded joints for railway products, it was established that it is necessary to develop a methodology that allows determining the height of structural lack of penetration in one-sided joints of the main types: butt, tee-form and corner joints, in order to improve the manufactured products’ quality, as well as to increase operational reliability of the rolling stock. The paper presents an overview and theoretical analysis of methods for determining the height of planar flaws. Particular attention is paid to the factor influencing the systematic error in estimating the flaws size, as well as to the methodological features of the multi-element transducers’ emitting and receiving apertures parameters choice. Experimental studies were carried out using a modern flaw detector with specialized software, which implements the methods of electronic scanning of the “running” and “rocking” beam, on the samples with vertical deterministic reflectors, which simulated flaws of the “lack of penetration” type in the root of the weld. Based on the experimental studies’ results, it was established: methodological features were determined when choosing the equipment parameters, their adjustment and verification, as well as the errors in estimating the height of flaws in an undetected signal when determining the height of the reflector from the maximum of the echo signal and from the first half-wave of the radio signal were determined.


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    Titel :

    On the Assessment of the Lack of Penetration Height During Ultrasonic Testing of Welded Joints for Railway Products


    Weitere Titelangaben:

    Lect. Notes in Networks, Syst.


    Beteiligte:
    Manakov, Aleksey (Herausgeber:in) / Edigarian, Arkadii (Herausgeber:in) / Konshina, Vera (Autor:in) / Ostanin, Ilya (Autor:in)

    Kongress:

    International Scientific Siberian Transport Forum ; 2021 May 11, 2021 - May 14, 2021



    Erscheinungsdatum :

    2022-03-19


    Format / Umfang :

    10 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch