Patent ID: 7614150
Filing Date: 2009-11-10
Classification: B23K,F01D,F05D,Y10T

Abstract:
1. A method for manufacturing a generally ring-shaped stator or rotor component which is intended during operation to conduct a gas flow, comprising: constructing a portion of said stator or rotor component by steps including 1) providing a curved first wall part having one edge bearing against a flat side of a second wall part that extends in a direction corresponding to an eventual radial direction of the component in such a way that the first wall part extends and curves in a direction corresponding to an eventual circumferential direction of the component and also extends in a direction corresponding to an eventual axial direction of the component; and 2) laser-welding the edge of the first wall part to the second wall part from an, in the circumferential direction, opposite side of the second wall part in relation to the first wall part in such a way that the joined-together portions of the wall parts form a T-shaped joint; wherein a sufficient number of stator or rotor component portions are so constructed and are mutually arranged so as to form the stator or rotor component, with the curved first wall parts of the stator or rotor components defining an axially extending, substantially annular flow-guiding surface that delimits a gas duct in said eventual radial direction.