VERFAHREN ZUM STARTEN EINES LASER-HYBRID- SCHWEISSPROZESSES ZUM SCHWEISSEN VON BESCHICHTETEN BLECHEN MIT EINER VOR-RÜCKBEWEGUNG DES EINGESCHALTETEN LASERS ZUM VERDAMPFEN DER BESCHICHTUNG

A filling wire having SAF DUAL ZN is used as filler rod (12). The metal sheets (3) are placed one above the other and pressed by a tightener (6). A metal inert/active gas welding process is formed by metal transfer process with the welding rod, which is used in inert gas welding process. The laser process is stopped, in which the focus (47) of the laser (13) lies at the surface (41) of metal sheet. The laser is adjusted for longitudinal movement (0-6 mm) controlled by laser hybrid torch, towards the gas unit (5) and to the starting position, which evaporated/melted the surface of the sheet. The gas welding is started after completion of the starting phase and takes place in ignition of the arc, which is activated and deactivated at the same time after the laser process. An independent claim is also included for a laser hybrid torch.