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Method and apparatus for assessing weld quality

United States Patent

May 22, 2001
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Apparatus for determining a quality of a weld produced by a welding device according to the present invention includes a sensor operatively associated with the welding device. The sensor is responsive to at least one welding process parameter during a welding process and produces a welding process parameter signal that relates to the at least one welding process parameter. A computer connected to the sensor is responsive to the welding process parameter signal produced by the sensor. A user interface operatively associated with the computer allows a user to select a desired welding process. The computer processes the welding process parameter signal produced by the sensor in accordance with one of a constant voltage algorithm, a short duration weld algorithm or a pulsed current analysis module depending on the desired welding process selected by the user. The computer produces output data indicative of the quality of the weld.
Smartt; Herschel B. (Idaho Falls, ID), Kenney; Kevin L. (Idaho Falls, ID), Johnson; John A. (Idaho Falls, ID), Carlson; Nancy M. (Idaho Falls, ID), Clark; Denis E. (Idaho Falls, ID), Taylor; Paul L. (Boise, ID), Reutzel; Edward W. (State College, PA)
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
09/ 346,196
July 1, 1999
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention pursuant to Contract No. DE-AC07-941D13223 between the United States Department of Energy and Lockheed Martin Idaho Technologies Company.