2026-04-29T04:37:11Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/63862022-11-30T11:15:35Zcom_10259_6336com_10259_6335com_10259.4_106com_10259_2604com_10259_3830com_10259_5086col_10259_6337col_10259_3832

00925njm 22002777a 4500 dc Martín, Óscar author Ahedo García, Virginia author Santos Martín, José Ignacio author Galán Ordax, José Manuel author 2022-01 Resistance spot welding (RSW) is a widespread manufacturing process in the automotive industry. There are different approaches for assessing the quality level of RSW joints. Multi-input-single-output methods, which take as inputs either the intrinsic parameters of the welding process or ultrasonic nondestructive testing variables, are commonly used. This work demonstrates that the combined use of both types of inputs can significantly improve the already competitive approach based exclusively on ultrasonic analyses. The use of stacking of tree ensemble models as classifiers dominates the classification results in terms of accuracy, F-measure and area under the receiver operating characteristic curve metrics. Through variable importance analyses, the results show that although the welding process parameters are less relevant than the ultrasonic testing variables, some of the former provide marginal information not fully captured by the latter. http://hdl.handle.net/10259/6386 10.1109/ACCESS.2022.3142515 2169-3536 Resistance spot welding Quality control Welding parameters Ultrasonic testing Tree ensembles Stacking Welding Acoustics Classification algorithms Electrodes Steel Boosting Testing Comparative study of classification algorithms for quality assessment of resistance spot welding joints from preand post-welding inputs