Russian Journal of Nondestructive Testing

, Volume 53, Issue 2, pp 96–103 | Cite as

Analysis of errors in location of flaws in multipass welds using different clustering methods

  • L. N. Stepanova
  • S. I. Kabanov
  • I. S. Ramazanov
  • K. V. Kanifadin
Acoustic Methods


Titanium and duralumin inserts were introduced into a weld to imitate welding flaws in St3 steel samples. Analysis of the accuracy of locating the introduced flaws with different clustering methods (by digitized shape, main informative parameters, the rise rate of leading-edge envelope) has shown that these methods involve considerable time expenditures. The developed dynamic clustering has been combined with the clustering by main informative parameters and allowed in situ location of flaws during welding, while the weld has not been completed yet.


welding insert flaw acoustic emission error cluster dynamic clustering 


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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • L. N. Stepanova
    • 1
  • S. I. Kabanov
    • 1
  • I. S. Ramazanov
    • 1
  • K. V. Kanifadin
    • 2
  1. 1.Siberian Aeronautical Research Institute named after S. A. ChaplyginNovosibirskRussia
  2. 2.Siberian Transport UniversityNovosibirskRussia

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