Mathematical modelling of GMAW process using sound pressure measurements Online publication date: Fri, 16-Jan-2015
by I. Polajnar; J. Prezelj; Z. Bergant; J. Grum
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 9, No. 3/4/5, 2014
Abstract: A burning of the electric arc produces strong side effects such as UV light, heat, vibrations of the burning electrode, acoustic emission, and audible sound. In addition to variable welding voltage and current, a distinctive characteristic of arc welding processes is the pressures of audible sound phenomena which reflect the variable conditions in the arc to the highest extent. Measurements and analysis of audible sound generated by the GMAW are presented in this paper. Results indicate that more information about the welding process is embedded in the sound signal as in the welding current signal or/and in the welding voltage signal. An additional advantage of sound implementation into the control algorithms is simplicity of its detection. The mathematical model for the calculation of sound from the welding current is presented. The model can be implemented for the calculation of welding process parameters in real-time applications.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Microstructure and Materials Properties (IJMMP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook