Patent ID: 7779541
Filing Date: 2010-08-24
Classification: B23K,F01D,Y10T

Abstract:
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.