Superalloys are designed for service at temperatures above 540 ºC. Due to their properties at high temperatures, this family of
materials is used in different aircraft engine components. Aeronautic components demand reliable joining technologies. The laser
welding of three different superalloys have been performed and analysed. Due to reduced extension of the heat affected zone
(HAZ), and high quality and ratio “depth/width” of welded seams, laser welding has been a first joining technology candidate to
new designs of components for new engines. The laser welding trials results, properties obtained, and development of the
homologation of laser welding process are described.