To solve the problem of pores in the weld bead of automotive axles, a study was made of the influence of various factors leading to the occurrence of porosity in steel joints welded by the robotic MIG/MAG process. Basically, the study focused on the influence the presence of a nitride-rich layer at the joint, the cleanliness of the surfaces to be welded, and the flow rate of the shielding gas. The results indicated that the presence of the nitride-rich layer generated by the plasma cutting process at the end of the tube corresponding to the base metal 1 significantly affected the resulting porosity in the weld bead. In addition to the experimental tests, practical tests were carried out on the shop floor in the axle production sector.


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    Title :

    Eliminating Porosity in the Weld Bead of Automotive Axles


    Additional title:

    Sae Technical Papers



    Conference:

    SAE Brasil 2007 Congress and Exhibit ; 2007



    Publication date :

    2007-11-28




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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