In prior friction stir welding (FSW) studies, consistent full penetration in pipeline steel has proved to be a difficult goal when using a portable FSW system capable of operation in the field(1). In a previous study, metallography, mechanical testing (tensile and Charpy impact), and workmanship testing (root bend) demonstrated that full penetration can be achieved through much of the weld length, and when full penetration is achieved, mechanical properlies are excellent. However, at times there remained sections of the weld that did not exhibit full penetration. As an example, metallography and root bend tests of the weld root have shown full penetration at many locations around the pipe circumference while from the same weld, locations are identified where remnant faying surfaces remain and full penetration was not achieved. Further, some welds exhibit full penetration accompanied by a continuous oxide path that remains at the weld root. Conversely, if the FSW tool penetrates into the support anvil, anvil material is drawn into the weld nugget. Thus, different approaches need to be developed to assure consistent full penetration without anvil contact.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Friction stir welding of pipeline steels


    Weitere Titelangaben:

    Reibrührschweißen von Rohrleitungsstählen


    Beteiligte:
    Mahoney, Murray (Autor:in) / Sanderson, Sam (Autor:in) / Feng, Zhili (Autor:in) / Steel, Russell (Autor:in) / Packer, Scott (Autor:in) / Fleck, Dale (Autor:in)


    Erscheinungsdatum :

    2013


    Format / Umfang :

    11 Seiten, 12 Bilder, 6 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Friction STIR welding in pipeline applications

    Steel, Russell / Nelson, Tracy / Sterling, Colin et al. | Tema Archiv | 2004


    Friction Stir Welding of Line-Pipe Steels

    Sanderson, S. / Mahoney, M. / Feng, Zhi-Li et al. | Tema Archiv | 2014



    Robotic Friction Stir Welding

    Voellner, G. / Silvanus, J. / Zaeh, M. F. et al. | SAE Technical Papers | 2007


    FRICTION STIR WELDING MACHINE, AND FRICTION STIR WELDING SYSTEMS WITH SUCH MACHINE

    FUJIMOTO MITSUO / NISHIDA HIDEHITO | Europäisches Patentamt | 2016

    Freier Zugriff