Sensing of Metal-Transfer Mode for Process Control of GMAW

  • Nancy M. Carlson
  • John A. Johnson
  • Herschel B. Smartt
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series


Research in welding at the Idaho National Engineering Laboratory (INEL) is currently concentrating on the development of sensing, modeling, and control schemes for GMAW [1,2]. In the GMAW process, a welding arc is struck between the workpiece and the tip of a consumable wire electrode. The electrode carries the welding current, sustaining the arc. The electrode melts, resulting in the detachment of metal droplets which supply filler metal to the joint [3]. The standard practice for achieving a desired rate and size of metal droplet is to set welding parameters based on past experience.


Acoustic Emission Weld Pool Transfer Mode Welding Current Wire Feed Speed 
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  1. 1.
    H. B. Smartt, C. J. Einerson, and A. D. Watkins, “Modelling and Control of Gas Metal Arc Welding,” submitted to Welding Journal.Google Scholar
  2. 2.
    H. B. Smartt, C. J. Einerson, and A. D. Watkins, “Computer Control of Gas Metal Arc Welding,” Second International Conference on Computer Technology in Welding, The Welding Institute, Cambridge, UK, June 1988.Google Scholar
  3. 3.
    Welding Handbook, 8th ed., Vol. 1, Welding Technology, L. P. Connor, ed., American Welding Society, Miami, FL, pp. 4–8, 1987.Google Scholar
  4. 4.
    J. A. Johnson, B. A. Barna, L. S. Beller, S. C. Taylor, and J. B. Walter, “A CAMAC Based Ultrasonic Data Acquisition Workstation,” Materials Evaluation 45, pp. 934–938, August 1987.Google Scholar
  5. 5.
    John Milewski, LANL, private communication.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Nancy M. Carlson
    • 1
  • John A. Johnson
    • 1
  • Herschel B. Smartt
    • 1
  1. 1.Idaho National Engineering LaboratoryEG&G Idaho, Inc.Idaho FallsUSA

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