A method for the mechanized welding of tubes with the use of a process combination of lasers - msg - hybrid - and - art msg

摘要

A method for the mechanized orbitally - welding tubes (1) using the process combination of lasers - msg - hybrid technology and msg - art and an embodiment of the seam in the two half cycles as the case of seam welding in 12 - o''clock - position starting, characterized in that the welding using a welding system with a first and a second light arc burner (3, 4) and a laser welding head (2) takes place, wherein• in a first process step, the laser welding head (2) during the first half revolution from the 12 - o''clock - position with the first light arc burner (3) in a hybrid arrangement of a common operating zone is formed, and the first layer is produced, while the second light arc burner (4) in a hybrid process trailing arrangement welded a second position, then• in a second process step a) in the welding of goes to 12 mm, a resetting of the inactive welding system in the 12 - - o''clock position, or b) goes hand in the welding of over 12 mm, the resetting of the welding system in the 12 - o''clock - position for welding a filling - or cover layer is used, then• in a third process step a repositioning of the light arc burner (3, 4) for the laser welding head (2) is effected by the first light arc burner (3) from the hybrid into a to the hybrid circuit process trailing arrangement and the second light arc burner (4) from the trailing arrangement in the hybrid process with the laser welding head (2), after which• in a fourth method step of the laser welding head (2) during a second, likewise in 12 - o''clock - position opposite half revolution beginning with the second light arc burner (4) forms a common operating zone and the first layer is produced, while the first light arc burner (3) in the trailing arrangement for hybrid process the second position, to prevent tampering.