Rotors and methods of making the same
AssigneeGeneral Electric Company
InventorsSrikanth Chandrudu Kottilingam, Kenneth B. Potter
Life of this patent
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Abstract
A method of joining a first work piece and a second workpiece. The first and second workpieces may be rotor wheels of a rotor for a turbomachine. At least one of the workpieces includes an oxide dispersion strengthened alloy material and the first and second work pieces may be joined by welding a cladding on at least one of the workpieces to the other of the workpieces, without welding a substrate of the at least one workpiece which includes an oxide dispersion strengthened alloy material.
Claims12
A method of making a rotor for a turbomachine, the method comprising:
- forming a first rotor wheel comprising an oxide dispersion strengthened alloy material, the first rotor wheel defining a radius length along a radial direction;
- applying a cladding on a downstream face of the first rotor wheel by solid state joining a layer of a second material distinct from the oxide dispersion strengthened alloy material to the downstream face of the first rotor wheel, the cladding defining a width extending along the radial direction, the width of the cladding is less than the radius length of the first rotor wheel;
- and
- joining the first rotor wheel to a second rotor wheel by welding the cladding to a portion of an upstream face of the second rotor wheel without welding the first rotor wheel;
- wherein the method does not alter the grain structure of the oxide dispersion strengthened alloy material.
A method of joining, comprising:
- forming a first workpiece, the first workpiece comprising a substrate and a cladding, forming the first workpiece comprises:
- forming the substrate of the first workpiece, the substrate comprising an oxide dispersion strengthened alloy material, the substrate defining a radius length along a radial direction;
- and
- applying the cladding to a portion of a surface of the substrate by solid state joining a layer of a second material distinct from the oxide dispersion strengthened alloy material to a face of the substrate, the cladding defining a width extending along the radial direction, the width of the cladding less than the radius length of the substrate;
- and
- joining the first workpiece to a second workpiece by welding the cladding to a portion of a surface of the second workpiece without welding the substrate;
- wherein the method does not alter the grain structure of the oxide dispersion strengthened alloy material.
Dependencies are inferred from the claim text.