Application of vibroacoustic signals to evaluate tools profile changes in friction stir welding on AA 1050 H24 alloy

  1. Fernández, J.B. 1
  2. Roca, A.S. 2
  3. Fals, H.C. 2
  4. Macías, E.J. 1
  5. de la Parte, M.P. 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: 2012

Volumen: 17

Número: 6

Páginas: 501-510

Tipo: Artículo

DOI: 10.1179/1362171812Y.0000000040 SCOPUS: 2-s2.0-84863906579 WoS: WOS:000305638100011 GOOGLE SCHOLAR

Otras publicaciones en: Science and Technology of Welding and Joining

Proyectos relacionados

Soldadura por fricción-agitación de materiales disimilares. Caracterización por técnicas de Emisión Acústica e Inteligencia Artificial.

2012/00012/001

Resumen

This paper presents a study to evaluate the effect of the tool profile on friction stir welding (FSW) process in the aluminium AA 1050, using vibroacoustic signals. The vibroacoustic signals in Z and Y directions have been acquired by the AE instrument NI USB-9234. The characterisation in time and frequency domains and the statistical analysis of vibroacoustical signal have been carried out in order to correlate them with the design of two different tools. Statistical and temporal parameters of discomposed vibroacoustical signals using wavelet transform have been used for filtering vibration signal to eliminate the noise of the FSW machine and the extraction features of them. The analysis has confirmed that the vibroacoustical signals were significantly affected by changes in the tool profiles. Finally, it has been demonstrated that signals generated by this process can be effectively used to characterise the changes on tool design. © 2012 Institute of Materials, Minerals and Mining.