Report describes experimental study of some of the physical and chemical effects that occur during variable-polarity plasma arc (VPPA) keyhole welding of 2219 aluminum alloy. Comprised three major programs: (1) determination of effects of chemical additions (i.e., impurities) on structure and shape of bead and keyhole; (2) determination of flow in regions surrounding keyhole; (3) development of analog used easily to study flow in keyhole region.


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    Title :

    Physics Of Variable-Polarity Plasma Arc Welding


    Contributors:

    Published in:

    Publication date :

    1990-02-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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