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Continuous monitoring of an intentionally-manufactured crack using an automated welding and in-process inspection system.
- Source :
-
Materials & Design . Jun2020, Vol. 191, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- Automated weld deposition coupled with the real-time robotic Non-Destructive Evaluation (NDE) is used in this paper. For performance verification of the in-process inspection system, an intentionally embedded defect, a tungsten rod, is introduced into the multi-pass weld. A partially-filled groove (staircase) sample is also manufactured and ultrasonically tested to calibrate the real-time inspection implemented on all seven layers of the weld which are deposited progressively. The tungsten rod is successfully detected in the real-time NDE of the deposited position. The same robotic inspection system was then used to continuously monitor an intentionally-manufactured crack for 20 h. The crack was initiated 22 min after the weld ended and it grew quickly within the next 1.5 h. The crack growth stopped approximately after 2 h and no considerable change in the reflection signal was detected for the next 18 h of monitoring. Unlabelled Image • Automated weld deposition coupled with the real-time robotic NDT is discussed. • An intentionally embedded defect, a tungsten rod, is introduced for verification. • A partially-filled groove sample is also manufactured and ultrasonically tested. • The system is then used for continuous monitoring of a crack for 20 h. • The crack was initiated 22 min after the weld and grew for 1.5 h. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02641275
- Volume :
- 191
- Database :
- Academic Search Index
- Journal :
- Materials & Design
- Publication Type :
- Academic Journal
- Accession number :
- 143461438
- Full Text :
- https://doi.org/10.1016/j.matdes.2020.108655