Comparison of multiple regression and back-propagation neural network approaches in modelling top bead height of multipass gas metal arc welds

Kim, Ill-Soo, Lee, Sang-Heon, & Yarlagadda, Prasad K. (2003) Comparison of multiple regression and back-propagation neural network approaches in modelling top bead height of multipass gas metal arc welds. Science and Technology of Welding and Joining, 8(5), pp. 347-352.

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With the advanced developments and automation of the welding process, the use of process optimisation techniques has increased. The objective of the present paper is to describe process optimisation techniques for the gas metal arc (GMA) welding process, based on experimental results generated by the process. Back-propagation (BP) neural network and multiple regression methods are employed to study relationships between process parameters and top bead height for robotic multipass welding process, and to select a suitable model that provides the weld final configuration and properties as output and employs the process parameters as input. The process parameters, namely pass number, arc current, welding voltage and welding speed are optimised to produce the required top bead height. These techniques have achieved good agreement with the experimental data and yielded satisfactory results. Also, the BP neural network that was developed was compared to the empirical equations for predicting top bead height through additional experiments, and it was evident that the BP neural network was considerably more accurate than multiple regression techniques.

Impact and interest:

14 citations in Scopus
10 citations in Web of Science®
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ID Code: 6385
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information please refer to the publisher's website (link above) or contact the author:
DOI: 10.1179/136217103225010998
ISSN: : 1362-1718
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MANUFACTURING ENGINEERING (091000) > Manufacturing Processes and Technologies (excl. Textiles) (091006)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Copyright Owner: Copyright 2003 Maney Publishing
Deposited On: 07 Mar 2007 00:00
Last Modified: 29 Feb 2012 13:00

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