Modeling and control of keyhole ARC welding process

Y. M. Zhang, Y. C. Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper addresses the development of an adaptive control system for keyhole arc welding process. The system developed adjusts the amperage of the peak current to achieve the desired peak current period under varying manufacturing conditions. A nominal model is selected from models identified using experimental data and is used as the a prior model of the controlled process. A predictive control algorithm has been designed for the nominal model structure. Closed-loop control experiments have been conducted to verify the effectiveness of the developed system under varying set-point and varying travel speed.

Original languageEnglish
Title of host publicationIFAC Proceedings Volumes (IFAC-PapersOnline)
EditorsGabriel Ferrate, Eduardo F. Camacho, Luis Basanez, Juan. A. de la Puente
Number of pages6
StatePublished - 2002
Event15th World Congress of the International Federation of Automatic Control, 2002 - Barcelona, Spain
Duration: Jul 21 2002Jul 26 2002

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
ISSN (Print)1474-6670


Conference15th World Congress of the International Federation of Automatic Control, 2002

Bibliographical note

Funding Information:
This work is funded by the National Science Foundation under Grant DMI-9812981.

Publisher Copyright:
Copyright © 2002 IFAC.


  • Adaptive control
  • Identification
  • Manufacturing
  • Predictive control
  • Processes

ASJC Scopus subject areas

  • Control and Systems Engineering


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