VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • The effect of the shape of welding wire tip on arc ignition in MIG/MAG welding
    Suban, Marjan ; Tušek, Janez, 1952-
    MAG and MIG welding processes can attain high efficiency as a low-cost welding process and it is used widely all over the world. However, generation of spatters is inevitable because of disturbances ... in metal transfer. For high quality welding it is thus highly important to reduce spatter. The major causes of spatter during welding are bursting of gas bubbles, explosive gas generation, electrodynamic arc force, and short-curcuiting restriking of the arc. But spatter also occurs at the beginning of welding, when the arc is ignited. Beside the workpiece surface condition, static and dynamic characteritics of the power source, the process of arc ignition is also affected by the shape of welding wire tip. The article describes the ignition process and the spatter formation. In the experimental studies, the influence of differently cut-off welding wire tips and tips with different residual drops on welding current and voltage was studied.
    Vir: Proccedings [!] of the International Conference on Advanced Materials Processing Technologies (AMPT'01), 18-21 September, Universidad Carlos III de Madrid, Leganés, [Madrid], Spain. Vol. 1, New developments on metals (Vol. 1, Str. 447-453)
    Vrsta gradiva - prispevek na konferenci
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 832193

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