| Autor: |
Schubert, Frank, Bendjus, Beatrice, Cikalova, Ulana, Stephan, Mareike, Hipp, Raffael, Schulze, Eberhard, Barth, Martin, Bor, Zsolt, Heuer, Henning |
| Předmět: |
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| Zdroj: |
Proceedings of Meetings on Acoustics; 9/3/2019, Vol. 38 Issue 1, p1-5, 5p |
| Abstrakt: |
Welded joints are usually inspected by ultrasonic non-destructive testing (UT) after completion of the weld. However, such a conventional offline NDT approach is inefficient in case of complex welding techniques, large structural components or expensive materials. If structurally relevant defects are found, a repair is no longer possible and the whole component has to be rejected. For a better identification of defects during the welding process, a temperature-resistant inline monitoring approach is necessary. In the present contribution we describe a multi-method approach based on three different techniques: Phased Array Ultrasonic Testing (PAUT), Acoustic Process Monitoring (AE) and Laser Speckle Photometry (LSP). We present results of inline measurements during Laser-Multi-Pass-Narrow-Gap-Welding of Nickel super alloys and compare the results with posterior ultrasonic immersion testing and metallographic micrographs. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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