New stability index for short circuit transfer mode in GMAW process using acoustic emission signals

  1. Sánchez Roca, A. 2
  2. Carvajal Fais, H. 2
  3. Blanco Fernández, J. 1
  4. Jiménez Macías, E. 1
  5. Sanz Adán, F. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidad de Oriente - Santiago de Cuba
    info

    Universidad de Oriente - Santiago de Cuba

    Santiago de Cuba, Cuba

    ROR https://ror.org/03kqap970

Revista:
Science and Technology of Welding and Joining

ISSN: 1362-1718

Año de publicación: 2007

Volumen: 12

Número: 5

Páginas: 460-466

Tipo: Artículo

DOI: 10.1179/174329307X213882 SCOPUS: 2-s2.0-36448964882 GOOGLE SCHOLAR

Otras publicaciones en: Science and Technology of Welding and Joining

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Utilización de técnicas de inteligencia artificial y emisión acústica para la optimización del proceso automatizado de soldadura y análisis de estabilidad

2007/00080/001

Resumen

A new index for the analysis of stability of GMAW processes taking as a base the acoustic emission generated by the arc during the short circuit metal transfer is presented in the present work. The incidence of parameters of process is analysed in the indices of the acoustic emission signal, as well as its Influence on the stability, evaluated through a new proposed index. The results obtained allowed having a relationship between acoustic signals and arc voltage signals, and demonstrated the validity of proposed index of acoustic emission for analysis of stability of GMAW process. The obtained results were then compared with other classic stability analysis methods based on statistical analysis of temporal signals of arc voltage. Finally a statistical analysis for the validation of the obtained experimental results was carried out. As a result of the investigation, the effectiveness of the method proposed as a new way for the analysis of stability is demonstrated. The research can contribute towards a new standard to evaluate the stability in welding processes. © 2007 Institute of Materials, Minerals and Mining.