An experiment for determining the laser-TIG hybrid welding characteristics was carried out in three kinds of hybrid methods: CO2 laser-TIG coaxial hybrid, CO2 laser-TIG paraxial hybrid and Nd: YAG laser-TIG paraxial hybrid. The experimental results indicate that hybrid welding has two welding mechanisms in CO2 laser-TIG hybrid welding: deep penetration welding and heat conduction welding. As the effect of the laser-induced keyhole, the arc root is condensed, the current density and penetration depth increase significantly, the welding characteristic is adopted to deep penetration welding. When current increases to some degree, the keyhole induced by laser disappears, which produces a shallow penetration and wide bead. The weld exhibits heat conduction welding characteristics. Furthermore, the arc images and weld bead cross-sections of three kinds of hybrid manners were also compared and analyzed at different welding currents, which established the foundation for understanding the welding characteristics of laser-TIC hybrid welding comprehensively.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Welding characteristics in different laser-TIG hybrid manners


    Contributors:
    Chen, Yanbin (author) / Lei, Zhenlong (author) / Li, Liqun (author) / Lin, Wu (author)

    Published in:

    China Welding ; 13 , 1 ; 41-45


    Publication date :

    2004


    Size :

    5 Seiten, 9 Bilder, 1 Tabelle, 6 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Laser-TIG Hybrid Welding in Different Hybrid Manners

    Yanbin, C. / Zhenglong, L. / Liqun, L. et al. | British Library Conference Proceedings | 2003


    Welding characteristics of a hybrid diode / Nd:YAG - laser system

    Reinhart, G. / Hartl, J. / Lehner, C. et al. | British Library Conference Proceedings | 2001


    Hybrid laser-arc pipeline welding

    Yapp, David / Kong, Chang-Jing | Tema Archive | 2008


    Hybrid Laser Welding of Polymers

    Geiger, R. / Brandmayer, O. / Brunnecker, F. et al. | British Library Conference Proceedings | 2009