Laser welding process for an assembly of two metal parts

摘要

The process makes it possible to produce partitioned boxes by carrying out the fastening or fixture from the outside of said boxes. Use is made of two successive inclined laser beam shots or flashes (8A,8B), which intersect at the upper surface (1B) of the part (1) constituting the assembly head. The two laser welding axes (8A,8B) intersect two upper corners (2C) of the part (2) serving as the base of the T. The welding device is positioned outside the box, i.e. on the side of the upper surface (1B) of the head (1) of the T. Application to the manufacture of the arms of the outer duct of a turbojet engine.