Apparatus for welding metal e.g., high alloyed steel sheets comprises a protective gas sprayer having a housing joined to a diode laser head coaxially to the outlet axis of the laser beam

摘要

The sprayer has a housing (11) joined to a diode laser head coaxially to the outlet axis of the laser beam (L). The housing has a connection (12) for a protective gas line to distribute the gas around the laser beam and to guide it to the welding site. The housing also has a funnel-like section connected to an annular channel. Apparatus for welding metal comprises a protective gas sprayer (6) that provides a protective gas in such a way, that a diode laser beam is encased by a protective gas atmosphere on hitting the welding site. The sprayer has a housing (11) joined to a diode laser head coaxially to the outlet axis of the laser beam (L). The housing has a connection (12) for a protective gas line to distribute the gas around the laser beam and to guide it to the welding site. The housing also has a funnel-like section connected to an annular channel.