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Pulsed laser weld q...
Pulsed laser weld quality monitoring by the statistical analysis of reflected light
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Olsson, Rickard (författare)
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Eriksson, Ingemar (författare)
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Powell, John (författare)
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- Kaplan, Alexander (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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(creator_code:org_t)
- Stuttgart : AT-Fachverlag, 2009
- 2009
- Engelska.
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Ingår i: Lasers in manufacturing 2009. - Stuttgart : AT-Fachverlag. ; , s. 369-374
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- This paper describes a technique for monitoring the quality of laser welds by statistical analysis of the reflected light signal from the weld surface. An algorithm is used which analyses the variance of the peak values of the reflected signal as a measure of surface weld dynamics during pulsed Nd:YAG laser welding in the heat conduction mode. Kalman filtering is used to separate a useful signal from the background noise. A good correlation between weld disruption and signal fluctuation has been identified. This technique could be used in tandem with the present practice of simply using the peak values of the reflected (or emitted) light as an indicator of weld quality.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Manufacturing Systems Engineering
- Produktionsutveckling
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)