Method for manufacturing a stator or rotor component
Method for manufacturing a stator component or rotor component ( 10 ) including at least one ring element ( 3 ). A joining material is provided in contact with at least one of the blade ( 2 ) and the ring element ( 3 ). The blade and the ring element are arranged in relation to one another in such a way that they are joined together via a butt joint when heated, and when such heat-treatment is subsequently carried out, the joining material forms a melt that joins the parts together upon solidification.
1. A method for manufacturing a stator or rotor component, comprising:
providing a disk-shaped member comprising a hub and a plurality of blades extending radially outwardly from said hub, wherein free end surfaces of the blades are inclined at an acute, non-zero, frustroconical angle relative to an axial axis of the disk-shaped member;
providing a continuous ring-shaped cover member, wherein an inner surface of said cover member is inclined at an acute, non-zero, frustroconical angle relative to an axial axis of the cover member corresponding to the acute, non-zero angle of the free end surfaces of the blades;
providing a joining material on at least one of 1) the free end surfaces of the blades and 2) the inner surface of the cover member;
moving the disk-shaped member and the cover member axially toward each other until the angled free end surfaces of the blades and the angled inner surface of the cover member almost contact each other so as to form a butt joint with said joining material sandwiched therebetween;
heat-treating the joining material until it forms a melt; and
causing or allowing the joining material melt to solidify so as to join the blades to the cover member.
2. The method of claim 1 , further comprising applying pressure to said disk-shaped member and said cover member, acting in an axial direction, during said heat-treating so as to force said disk-shaped member and said cover member toward each other.