Multi-sensor based prediction of metal deposition in pulsed gas metal arc welding using various soft computing models

Authors:
Sandip Bhattacharya;Kamal Pal;Surjya K. Pal
Affiliations:
Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur 721 302, WB, India;School of Mechanical Engineering, KIIT University, Bhubaneswar-751024, Orissa, India;Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur 721 302, WB, India
Venue:
Applied Soft Computing
Year:
2012

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Abstract

The deposition efficiency is an important economic factor in welding. A multitude of uncontrollable factors influence the metal deposition, which indicates the necessity of robust sensors with an intelligent system to monitor the process in real time. This paper attempts to develop artificial neural network (ANN) models to predict the weld deposition efficiency using the welding sound signal along with the welding current and the arc voltage signals in pulsed metal inert gas welding. Three different implementations of ANNs have been used: gradient descent error back-propagation, neuro-genetic algorithm and neuro-differential evolution. The results indicate that the sound signal kurtosis, used in conjunction with the current and the voltage signals, is a reliable indicator of deposition efficiency.