Sökning: WFRF:(Christiansson Anna Karin 1947 )
> (2015-2019) >
A study on change p...
A study on change point detection methods applied to beam offset detection in laser welding
-
- Nilsen, Morgan (författare)
- Högskolan Väst,Avdelningen för produktionssystem (PS),PTW
-
- Sikström, Fredrik, 1971- (författare)
- Högskolan Väst,Avdelningen för produktionssystem (PS),PTW
-
- Christiansson, Anna-Karin, 1947- (författare)
- Högskolan Väst,Avdelningen för produktionssystem (PS),PTW
-
(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
-
Ingår i: Procedia Manufacturing. - : Elsevier BV. - 2351-9789. ; 36, s. 72-79
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- This paper presents an experimental study where a photodiode integrated into a laser beam welding tool is used to monitor laser beam spot deviations fromthe joint, the beam offset. The photodiode system is cost effective and typically easy to implement in an industrial system. The selected photodiode is a silicondetector sensitive in the spectral range between 340-600nm which corresponds to the spectral emissions from the plasma plume. The welding application is closed-square-butt joint welding where a laser beam offset can cause lack of fusion in the resulting weld. The photodiode signal has been evaluated by two different change point detection methods, one off-line and one on-line method, with respect to their detection performance. Off-line methods can be used to guide post weld inspection and on-line methods have the potential to enable on-line adaptive control or the possibility to stop the process for repair. The performance of the monitoring system and the change point detection methods have been evaluated from data obtained during laser beam welding experiments conducted on plates of stainless steel. The results clearly indicates the possibility to detect beam offsets by photodiode monitoring.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
Nyckelord
- Laser beam welding; monitoring; photodiode; change point detection
- Production Technology
- Produktionsteknik
- Manufacturing and materials engineering
- Produktions- och materialteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas