Laser welding process for joining a PVC-free flexible tube segment to a tubular molding body using a laser and a mirror, the flexible tube wall of the flexible tube segment being formed by at least two layers of material distinct from each other and one of these layers containing at least in sections an absorber for laser radiation, and in procedure a) the PVC-free flexible tube segment and the tubular molding body, b) the flexible tube segment and the body are made available of tubular molding are inserted into each other in geometric connection, such that the surface areas of the flexible tube segment and the tubular molding body overlap, c) the flexible tube segment and the tubular molding body with the zones overlapping surfaces are arranged in front of the mirror, d) the flexible tube segment and the tubular molding body with the overlapping surface areas are irradiated with laser radiation, so that l The laser beams reflected or transmitted by the flexible tube segment or by the tubular molding body are reflected by the mirror and partly re-impact the flexible tube segment or the tubular molding body, producing a welded joint between the segment Flexible tube and tubular molding body.Procedimiento de soldadura láser para unir un segmento de tubo flexible exento de PVC a un cuerpo de moldeo tubular usando un láser y un espejeo, estando formada la pared de tubo flexible del segmento de tubo flexible por al menos dos capas de material distintas entre sí y conteniendo una de estas capas al menos por secciones un absorbedor para radiación láser, y en el procedimiento a) se ponen a disposición el segmento de tubo flexible exento de PVC y el cuerpo de moldeo tubular, b) el segmento de tubo flexible y el cuerpo de moldeo tubular se insertan uno en otro en unión geométrica, de tal forma que se solapan las zonas de superficie del segmento de tubo flexible y del cuerpo de moldeo tubular, c) el segmento de tubo flexible y el cuerpo de moldeo tubular con las zonas de super
