Use of the plasma RMS signal for on-line welding quality monitoring

J. Mirapeix; A. Cobo; P. B. Garcia-Allende; O. M. Conde; J. M. Lopez-Higuera

doi:10.1117/12.854684

13 May 2010 Use of the plasma RMS signal for on-line welding quality monitoring

J. Mirapeix, A. Cobo, P. B. Garcia-Allende, O. M. Conde, J. M. Lopez-Higuera

Proceedings Volume 7726, Optical Sensing and Detection; 772625 (2010) https://doi.org/10.1117/12.854684
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

In this paper a new spectroscopic monitoring parameter is proposed for the on-line monitoring of welding processes, the plasma RMS signal, which is determined by considering the contribution from the spectral samples over a particular spectral window. This parameter is directly related to the heat input that can be estimated by measuring both welding voltage and current, but it exhibits a higher sensitivity to the appearance of weld defects. A comparison between the results obtained from the different spectroscopic parameters will be presented, with data from both experimental and field arc-welding tests.

Citation Download Citation

J. Mirapeix, A. Cobo, P. B. Garcia-Allende, O. M. Conde, and J. M. Lopez-Higuera "Use of the plasma RMS signal for on-line welding quality monitoring", Proc. SPIE 7726, Optical Sensing and Detection, 772625 (13 May 2010); https://doi.org/10.1117/12.854684

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