Signal overlap in the monitoring of laser weldingReportar como inadecuado




Signal overlap in the monitoring of laser welding - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.Powell, John Kaplan, Alexander 2010 (English)In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 21, no 10Article in journal (Refereed) Published

Abstract [en] : Laser weld monitoring is usually based on the feedback from three photodiodes which are intended to provide independent information about the thermal condition of the melt (the T signal), the radiation from the plume of a heated gas above the melt (the P signal) and the amount of reflected laser light (the R signal). This work demonstrates that, in fact, the plume of the hot gas above the weld pool contributes a large part of the thermal signal, which has hitherto been assumed to come only from the melt itself. It is suggested that the correlation between the T and P signals is so strong that a T-P signal would be more useful than the raw T signal in identifying the fluctuations in infrared radiation from the melt pool

Place, publisher, year, edition, pages: 2010. Vol. 21, no 10

Research subject: Manufacturing Systems Engineering

Identifiers: URN: urn:nbn:se:ltu:diva-13487DOI: 10.1088/0957-0233/21/10/105705Local ID: cb54da90-b740-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-13487DiVA: diva2:986440

Note: Validerad; 2010; Bibliografisk uppgift: Paper id:: 105705; 20100903 (ysko)Available from: 2016-09-29 Created: 2016-09-29Bibliographically approved



Autor: Eriksson, Ingemar

Fuente: http://ltu.diva-portal.org/







Documentos relacionados