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dc.contributor.authorBardin, Fabrice
dc.contributor.authorCobo García, Adolfo 
dc.contributor.authorLópez Higuera, José Miguel 
dc.contributor.authorCollin, Olivier
dc.contributor.authorAubry, Pascal
dc.contributor.authorDubois, Thierry
dc.contributor.authorHögström, Mats
dc.contributor.authorNylen, Per
dc.contributor.authorJonsson, Peter
dc.contributor.authorJones, Julian D. C.
dc.contributor.authorHand, Duncan
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.date.accessioned2012-10-26T10:47:33Z
dc.date.available2012-10-26T10:47:33Z
dc.date.issued2005-07-01
dc.identifier.issn1559-128X
dc.identifier.issn2155-3165
dc.identifier.urihttp://hdl.handle.net/10902/824
dc.description.abstractOptical techniques for real-time full-penetration monitoring for Nd:YAG laser welding have been investigated. Coaxial light emission from the keyhole is imaged onto three photodiodes and a camera. We describe the spectral and statistical analyses from photodiode signals, which indicate the presence of a full penetration. Two image processing techniques based on the keyhole shape recognition and the keyhole image intensity profile along the welding path are presented. An intensity ratio parameter is used to determine the extent of opening at the rear of a fully opened keyhole. We show that this parameter clearly interprets a hole in formation or a lack of penetration when welding is performed on workpieces with variable thicknesses at constant laser poweres_ES
dc.format.extent8 p.es_ES
dc.language.isoenges_ES
dc.publisherOptical Society of Americaes_ES
dc.rights© 2005 Optical Society of America. This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/AO.44.003869. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.es_ES
dc.sourceApplied Optics,2005, 44(19), 3869-3876es_ES
dc.titleOptical techniques for real-time penetration monitoring for laser weldinges_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsopenAccesses_ES
dc.identifier.DOI10.1364/AO.44.003869
dc.type.versionpublishedVersiones_ES


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