| 摘要 |
<p>A system (100) and a process for welding metal tubes and a metal tube welded with said system and process are described. The system (100) comprises a laser assembly (1) and a tube supporting assembly (3). The tube supporting assembly (3) comprises a pair of opposed mandrels (31, 31') adapted to clamp and to set in rotation two tubes (4, 4') to be welded with abutting ends (40, 40'). The laser assembly (1) comprises a nozzle (17) for delivery of a laser beam, which is focused on the abutting ends (40, 40') of the tubes to perform a radial laser weld during rotation of the tubes.</p> |
