Testing and Modeling of Mechanical Characteristics of Resistance Welding Machines

Pei Wu, Wenqi Zhang, Niels Bay, Patrick Van Rymenant, Rudi Van de Moer, Werner Wandenbussche

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    The dynamic mechanical response of resistance welding machine is very important to the weld quality in resistance welding especially in projection welding when collapse or deformation of work piece occurs. It is mainly governed by the mechanical parameters of machine. In this paper, a mathematical model for characterizing the dynamic mechanical responses of machine and a special test set-up called breaking test set-up are developed. Based on the model and the test results, the mechanical parameters of machine are determined, including the equivalent mass, damping coefficient, and stiffness for both upper and lower electrode systems. This has laid a foundation for modeling the welding process and selecting the welding parameters considering the machine factors. The method is straightforward and easy to be applied in industry since the whole procedure is based on tests with no requirements for knowledge of the machine construction.
    Original languageEnglish
    Title of host publicationProceed. of JOM2003
    EditorsAlan Parnes, R. L. Apps and Osama AL-Erhayem
    Place of PublicationGilleleje
    PublisherInstitute for the Joining of Materials
    Publication date2003
    Publication statusPublished - 2003
    Event11th International Conference on the Joining of Materials - Elsinore, Denmark
    Duration: 25 May 200328 May 2003
    Conference number: 11


    Conference11th International Conference on the Joining of Materials


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