In this study, we present an innovative real-time laser welding monitoring technique employing the correlation analysis of the plasma plume optical spectra generated during the process. In order to look for a relationship between optical signals and welds quality, the influence of the experimental conditions on the correlation plots are also investigated. The correlation analysis results allow to evaluate the quality of the welds, through an on-line detection of common defects, such as oxidation or lack of penetration, with an excellent spatial resolution.
|Autori interni:||BERARDI, Vincenzo|
|Titolo:||Real-time monitoring of laser welding by correlation analysis: The case of AA5083|
|Rivista:||OPTICS AND LASERS IN ENGINEERING|
|Data di pubblicazione:||2007|
|Digital Object Identifier (DOI):||10.1016/j.optlaseng.2007.04.002|
|Appare nelle tipologie:||1.1 Articolo in rivista|