This paper renders research into the fundamentals governing the melt pool dynamics of a hybrid bifocal laser welding system consisting of an Nd:YAG and a high power diode laser (HPDL). The resulting superposition of keyhole by heat conduction mode welding is assayed for extruded aluminum. In particular the diffusion of the surface oxygen layer is considered. By comparing the results attainable by bifocal laser hybrid welding to the constituent laser processes synergetic effects of the laser hybrid can be demonstrated. These are namely the doubling of the welding speed from 2.0 min(exp-1) to 4.0 m min(exp-1), the reduction of the roughness of the weld surface from 60 micrometer to approximately 10 micrometer and an increase in energy transfer efficiency. The experimental investigations verifying these synergies are outlined and discussed.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Laser bifocal hybrid welding of aluminum


    Contributors:
    Trautmann, A. (author) / Zaeh, M.F. (author)


    Publication date :

    2006


    Size :

    13 Seiten, 15 Bilder, 1 Tabelle, 19 Quellen





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Print


    Language :

    English




    Bifocal hybrid laser welding of aluminium

    Huber, S. / Trautmann, A. / Zäh, M.F. | Tema Archive | 2007


    Efficient Bifocal Laser Cutting Technology in Production

    Caristan, C. | British Library Conference Proceedings | 2003


    Image fusion method and bifocal camera

    LI ZHAOZAO | European Patent Office | 2023

    Free access

    Bifocal Metrology Applications in Space Engineering

    Bresciani, Fulvio / Fasano, Giorgio / Pintér, János D. | Springer Verlag | 2023


    Attitude Control of Bifocal Relay Mirror Spacecraft

    Agrawal, Brij N. / Kim, Jong-Woo / Romano, Marcello | AIAA | 2004