The use of high power laser sources (CO2) enables the joining of aluminum and zinc-coated steel sheets in butt configuration, using a combined welding-brazing process. Comparable to conventional thermal joining technologies, like resistance spot welding, intermetallic phases are formed in the contact zone leading to a decrease of the mechanical properties of the joint. With locally restricted energy input and high joining speeds the formation of these phases can be minimized to a none critical level. For the characterization of the seam morphology optical, X-ray and electron microscopy examinations have been carried out, demonstrating a phase layer thickness of about 2 μm. In mechanical tests, fracture stresses of 144 N/mm2 have been achieved.


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    Titel :

    Combined Welding-Brazing Process for Joining AluminumSteel-Tailored Blanks with High Power Laser Sources


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Criqui, Bernard (Autor:in) / Wagner, Florian (Autor:in) / Sepold, Gerd (Autor:in) / Joly, Marion (Autor:in) / Kreimeyer, Michael (Autor:in)

    Kongress:

    International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress ; 2002



    Erscheinungsdatum :

    2002-07-09




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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